WLMGCA2-LDK13A_技术文档

Two-circuit Limit Switch/Long-life Two-circuit Limit Switch

WL/WLM

Wide Range of Two-circuit Switches;

Select One for the Operating

Environment/Application

■ A wide selection of models are available, including the

overtravel models with greater OT, indicator-equipped

models for checking operation, low-temperature models,

heat-resistant models, and corrosion-proof models.

■ Microload models are added to the product lineup.

■ Meets EN/IEC standards (only Switches with ground

terminals and pre-wired connectors with DC specifications).

■ Approved by UL, CSA, and CCC (Chinese standard). (Ask

your OMRON representative for information on approved

models.)

Be sure to read Safety Precautions on page 39 to 42 and

Safety Precautions for All Limit Switches.

Features

Standard Models

Features Common to All Models

Many Variations in Standard Limit Switches

A Wide Range of Models

DPDB Operation

The double-pole, double-break structure ensures circuit braking.

The WL Series provides a complete range of Limit Switches with a

long history of meeting user needs. Select environment-resistant

specifications, actuators for essentially any workpiece, operating

sensitivity matched to the workpiece, operation indicators to aid

operation and maintenance, and various wiring specifications.

1

2

4

3

Za

(NO)4

(NC)1

3(NO)

2(NC)

Load

Environment-resistant Models

Select from Six Types of Environment Resistance

Degree of Protection; IP67

The series includes Airtight Switches, Hermetic Switches, Heat-

resistant Switches, Low-temperature Switches, Corrosion-proof

switches, and Weather-proof Switches. Select the one required by the

onsite environment.

O-rings, cover seals, and other measures provide a water-proof, drip-

proof structure (IP67).

Approved Standards to Aid Export Machines

Various WL/WLM switches are approved by UL, CSA, TÜV, EN/IEC,

and CCC making them ideal for export machines.

Spatter-prevention Models

High-precision Models Available in All Switch Types;

Ideal for Position Control

Excellent Performance on Arc Welding Lines or Sites with

Spattering Cutting Powder

Ideal for Welding Sites

High-precision models achieve a very small movement to operation

Stainless steel and resins that resist adhesion of spatters are used to

prevent troubles caused by zinc powder generated during welding.

(approx. 5°) and a repeat accuracy that is twice that of basic models.

Operation Indicators for Easier Daily

Inspections*

Long-life Models

Confirm operation with a neon lamp or LED for

easier startup confirmations and maintenance.

Mechanical Endurance of 30 Million Operations

Long-life Models for High-frequency Applications

* Specify the type of operation indicator for general-

Operation

purpose models. Provided on standard models for

indicator

Long life has been achieved by increasing the resistance to friction

and creating better sliding properties in the head mechanism. Greater

visibility is provided when setting with a fluorescent display for setting

the stroke.

spatter-prevention and long-life models.

Models with Connectors Provided with All Switch Types

Reduced wiring with one-touch connection. Connectors that also

make Switch replacement easier are provided with direct-wired and

prewired models).

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WL/WLM

Product Configuration

Selection by Purpose

●Basic Switches

WL@

Selection Points

Effective for switching loads of 0.1 A, 125 VAC/30

VDC.

❍General-purpose

●Microload Switches

WL01@

Standard

Switches

Selection Points

WLH@

Effective if the overall

movement is 80° or 90°

when dog angle or

❍High-sensitivity

●Overtravel Switches

Switches

WLG@

deflection is absorbed.

❍90° Operation

Switches

WL@-2

WL@-2N

●High-precision

Selection Points

Provide twice the repeat accuracy as Basic Switches.

Effective for positioning in machine tools.

Switches

WLGCA2

●Protective

WLCA32-@

Selection Points

Effective for protecting the operating status.

General-

purpose

●Indicator-equipped Switches: Neon lamps

WL@-@LE

Operation indicators

●Indicator-equipped Switches: Light emitting diodes (LED)

WL@-@LD

Selection Points

· Effective for confirming workpieces

passing by on a conveyor or for

confirming operation in dark locations.

· For standard models, add -LE or -LD.

(Operation indicators cannot be used

with some environment-resistant

specifications.)

●Direct-wired Switches

WL@-@LDK@

●Pre-wired Switches

Sensor I/O connectors

Selection Points

WL@-@LD-M1@

Effective for reducing wiring work,

making maintenance easier, and

preventing wiring mistakes.

WL@-@LD-AGJ@/-DGJ@

WL@-@LD-DK1EJ@

WL Series

●Airtight Switches

WL@-55

●Hermetic Switches

WL@-139

WL@-140

WL@-141

WL@-145

WL@-RP40

WL@-RP60

●Heat-resistant Switches

WL@-TH

●Low-temperature Switches

WL@-TC

●Corrosion-proof Switches

WL@-RP

Environment-resistant

Selection Points

Enable selection according to the

operating environment: water, oil,

chemicals, high/low temperatures, etc.

●Weather-proof Switches

WL@-P1

●Basic Switches

WLCA2-@S

●Microload Switches

WL01@-@S

●Overtravel Switches

Spatter-prevention

Selection Points

❍General-purpose Switches

WLH2-@S

❍High-sensitivity Switches

WLG2-@S

●High-precision Switches

WLGCA2-@S

Effective for welding sites or spattering

cutting powder.

●Basic Switches

WLMCA2@

●Overtravel Switches

❍General-purpose Switches

WLMH2@

WLM Series

Long-life

❍High-sensitivity Switches

WLMG2@

●High-precision Switches

WLMGCA2@

Selection Points

With high mechanical durability of 30

million operations, effective for high-

frequency operation.

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WL/WLM

Tables of Models

General-purpose Switches

Spatter-prevention Switches

Long-life Switches

Actuators/Heads

General

purpose

Spatter

prevention

Actuators

Features

Head specifications

One-side Head

Long-life

Model

Type

Roller

lever

Flexible

Model

Plunger

Total travel (TT)

rod

Model

operation mounting

• With a Roller Lever

45°

Possible *1

(Except for Any of 4

Basic

WL@

Possible Possible Possible

WLCA2-@S

WLMCA2@

WLH2@

long-life

models.)

directions

• Overtravel is large,

making setting the

dog easier.

• Mounting is compati-

ble with WLH2.

80°

General-

purpose

Overtravel

Not possi- Any of 4

ble *2 directions

WLH@

WLG@

Possible

—

WLH2-@S

WLG2-@S

—

• Operation is highly

sensitivewith only 10°

pretravel.

• Overtravel is large,

making setting the

dog easier.

80°

High-

sensitivity

Overtravel

Not possi- Any of 4

ble *2 directions

WLMG2@

• Mounting is compatible

with WLG2.

• Overtravel is large,

making setting the

dog easier.

• Mounting is com-

patible with

Not possi- Any of 4

WL@-2

Possible

—

90°

ble *2

directions

Overtravel, 90°

operation

—

Either of 2

directions

WL@-2N

Possible *1

WLCA2-2.

• Repeat accuracy is twice

that basic models.

45°

•

Operation is highly sensi-

Not possi- Any of 4

High-precision WLGCA2

Possible

—

WLGCA2-

@S

WLMGCA2@

tive with only 5 pretravel.

°

ble *2

directions

• Ideal for positioning, e.g.,

with machine tools.

• When the dog throws

the lever, the output is

reversed and the re-

versed output is held

even after the dog

90°

Any of 4

directions

Maintained

WLCA32-

@

—

passed. The original

status is returned to

only after the dog passed.

*1. One-side operation means that three operational directions can be selected electrically, according to the change in direction of the operating plunger. The operating

plunger is set for operation on both sides before delivery.

*2. Those models for which one-side operation is impossible can only operate on both sides.

Connectors and Conduits

General-purpose

Model

Spatter-prevention

Long-life

Model

Wiring type

Connector/conduit specifications

Model

Direct-wired connector

WL@-@LDK@

• SC-2F/-4F Connector built-in

—

WLM@-LDK@

WL@-@LD-M1@

WL@-@LD-@GJ@

WL@-@LD-DK1EJ@

• XS2H-series Pre-wired Connector built- WL@-@S-M1@J-1

WLM@-LD-M1J

WLM@-LD-@GJ@

Pre-wired connector

in

WL@-@S-DGJS03

WL@-@

• G1/2 with no ground terminal

• G1/2 with ground terminal

• Pg13.5 with ground terminal

• M20 with ground terminal

• 1/2 14NPT with ground terminal

WLM@-LD

WL@-@G1@

—

Conduit (screw terminal) WL@-@G@

WL@-@Y@

—

WL@-@TS@

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WL/WLM

Environment-resistant Switches

Item

Environment-resistant

Type

Model

Application

Environment-resistant construction

Applicable models

All models except the low-

temperature and heat-re-

sistant models

Note: Models can be produced

using standard

Uses the W-10FB3-55 Airtight Built-in Switch.

Note: Use the SC Connector for the conduit opening.

Airtight seal

WL@-55

actuators.

All models except the low-

temperature and heat-re-

sistant models

WL@-139

WL@-140

WL@-141

WL@-145

For uses in locations sub-

ject to cutting oil or water

Note: Models can be produced

using standard

Hermetic seal

(Molded terminals/

Anti-coolant)

Refer to page 25 for information on the environ-

ment-resistant construction of Switches with Her-

metic Seals.

actuators. Only the

WLCA2, WLGCA2, or

WLH2 can be produced

for the WL@-141 and

WL@-145.

WL

@

-RP40

-RP60

WL

Can be used at a tempera-

ture of –40°C (operating

All models except airtight

seal, hermetic seal, heat-

• Uses a general-purpose built-in switch.

Low-temperature * WL@-TC

temperature range: –40 to • Silicone rubber is used for rubber parts such as resistant, corrosion-proof,

40°C), but cannot with-

stand icing.

the O-ring, gasket, etc.

and indicator-equipped

models

All models except airtight

seal, hermetic seal, heat-

resistant, corrosion-proof,

and indicator-equipped, ny-

lon roller (WLCA2-26N),

seal roller models, and res-

in rod (WLNJ-2) models

Can be used in tempera-

• Uses a special built-in switch made from heat-

resistant resin.

• Silicone rubber is used for rubber parts such as

the O-ring, gasket etc.

tures of 120

temperature range: 5 to

120 C).

°C (operating

Heat-resistant *

Corrosion-proof

Weather-proof *

WL@-TH

WL@-RP

WL@-P1

°

• Diecast parts, such as the switch box, are made

of corrosion-proof aluminum.

• Rubber sealing parts are made of fluorine

All models except overtrav-

rubber which aids in resisting oil, chemicals and el (90° operation), fork le-

For use in locations sub-

ject to corrosive gases and

chemicals.

adverse weather conditions.

ver lock (WLCA32-41 to -

43), low-temperature, heat-

resistant, and indicator-

equipped models

• Exposed nuts and screws (except the actuator

section) are made of stainless steel.

• Moving and rotary parts such as rollers are

made of sintered stainless steel or stainless

steel.

• Rubber parts are made from silicone rubber,

which has a high-tolerance to deterioration over

time and changes in temperature.

• Rollers are made of stainless steel to improve

corrosion resistance.

• Exposed nuts and screws are made of stainless

steel.

Only general-purpose

overtravel (WLH2/12) and

high-sensitivity overtravel

(WLG2/12) models (ex-

cluding heat-resistant mod-

els).

For use in parking lots and

other outdoor locations.

* Weather Resistance, Cold Resistance, and Heat Resistance

Silicon rubber is used to increase resistance to weather, cold, and heat. Silicon rubber, however, can generate silicon gas. (This can occur at room temperature, but

the amount of silicon gas generated increases at higher temperatures.) Silicon gas will react as a result of arc energy and form silicon oxide (SiO²). If silicon oxide

accumulates on the contacts, contact interference can occur and can interfere with the device. Before using a Switch, test it under actual application conditions

(including the environment and operating frequency) to confirm that no problems will occur in actual.

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WL/WLM

Selection Guide

With the WL Series, OMRON will combine the switch, Actuator, and wiring method required to build the ideal switch for

your application.

The WL Series consists of four basic types: General-purpose, En-

vironment-resistant, Spatter-prevention, and Long-life Switches.

WLCA2 Switches can be used for the most common applications.

According to Operating Environment

Environment

Key specifications

Models

−10°C

+80°C

WL@

General-purpose

Switches

Long-life Switches

Normal

WLM@

Water-resistant to IP67.

+120°C

+5°C

WL@-TH

WL@-TC

Heat-resistant

Switches *

High-temperature

Low-temperature

To increase heat resistance, the rubber material (silicon rubber)

and the material of the built-in switch have been changed.

−40°C

+40°C

Low-temperature

Switches *

To increase resistance to cold, silicon rubber and other

measures are used.

Rubber parts are made from silicone rubber, which has a high-

tolerance to deterioration over time and changes in temperature.

Rollers are made of stainless steel to improve corrosion resistance.

Exposed nuts and screws are made of stainless steel.

WL@-P1

WL@-RP

Weather-proof

Switches *

Outdoors

Corrosion-proof aluminum diecast has been used for the

housing, fluorine rubber has been used for rubber parts, and

stainless steel has been used for screws and nuts (except for

actuator) to increase resistance to oils, chemicals, and weather.

Corrosion-proof

Switches *

Chemicals and oil

Water drops and mist

Uses an airtight built-in switch.

WL@-55

Airtight Switches *

Cables attached. Uses a general-purpose built-in switch.

The case cover and conduit opening are molded from epoxy

resin to increase the seal. The cover cannot be removed.

WL@-139

Hermetic, Molded-terminal

Switches *

Cables attached. Uses an airtight built-in switch.

The case cover and box interior are molded from epoxy resin to

increase the seal. The cover cannot be removed.

The SC connector can be removed, so it is possible to use

flexible conduits for the cable.

WL@-RP40

Hermetic, Molded-terminal

Switches *

Constant water

drops and mist

Cables attached. Uses an airtight built-in switch.

The cover screws, case cover, box interior, and conduit opening

are molded from epoxy resin to increase the seal.

(The cover cannot be removed.)

WL@-140

Hermetic, Molded-terminal

Switches *

Cables attached. Uses an airtight built-in switch.

The cover screws, case cover, box interior, conduit opening, box

head, and head screws are molded from epoxy resin to increase

the seal. (The cover cannot be removed.)

The Head opening is protected from cutting powder.

-141: The Head section is molded from epoxy resin;

Head direction cannot be changed.

WL@-141, -145

Hermetic, Molded-terminal

Switches *

(Only the WLCA2, WLG2, WLGCA2,

and WLH2 can be produced.)

Constant water

drops or splattering

cutting powder

-145: The Head section is molded from epoxy resin;

Head can be in any of 4 directions.

Cables attached. Uses an airtight built-in switch.

The case cover, box interior, conduit opening, and head screws

are molded from epoxy resin to increase the seal. (The cover

WL@-RP60

Hermetic, Molded-terminal

Coolant

cannot be removed.) Rubber parts are made from fluorine rubber Switches *

to increase resistance to coolant.

To prevent spatter during welding, a heat-resistant resin is used

WL@-S

Spattering from

welding

Spatter-prevention

Switches

for the indicator cover and screws and rollers are all made from

stainless steel.

* Not all functions can be combined with environment-resistant switches. Refer to the applicable models on the previous page.

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WL/WLM

According to Application Conditions

Conditions

Key specifications

Models

10 A at 125,250, or 500 VAC

0.8 A at 125 VDC

0.4 A at 250 VDC

WL@

WL@-S

WLM@

General-purpose Switches

Spatter-prevention Switches

Long-life Switches

Switching standard

loads

Switching

microloads

0.1 A at 125 VAC, resistive load

0.1 A at 30 VDC, resistive load

WL01@

General-purpose Microload Switches

WL01@-S Spatter-prevention Microload Switches

Mechanical: 15 million operation min.

(10 million operation min. for overtravel

general-purpose or high-sensitivity models or

flexible rod models)

WL@

General-purpose Switches

Spatter-prevention Switches

Normal durability

Long-life

WL@-S

Mechanical: 30 million operation min.

WLM@

Long-life Switches

According to Ease of Installation and Maintenance

Conditions

Key specifications

Models

Switching light-ON between operating/not

operating. (Switching not possible for models

with molded terminals.)

Neon lamp

125 to 250 VAC

WL@-LE

General-purpose, Indicator-equipped (Neon Lamp) Switches

WL@-LES

Spatter-prevention, Indicator-equipped (Neon Lamp) Switches

Daily inspections

and maintenance

checks

Switching light-ON between operating/not

operating. (Switching not possible for models

with molded terminals.)

WL@-LD

General-purpose, Indicator-equipped (LED) Switches

WL@-LDS

LED

Spatter-prevention, Indicator-equipped (LED) Switches

10 to 115 VAC/DC

Screw terminals. No ground terminal.

Conduit size: G1/2

WL@

General-purpose Switches

Long-life Switches

WLM@

Screw tightening

and installation

Screw terminals. Ground terminal.

Conduit size: 4 sizes

WL@

General-purpose Switches

WL@-@LDK13

Direct-wired connector, 2-conductor.

Greatly reduces wiring work.

Water-proof to IP67.

General-purpose, Direct-wired Connector Switches

WLM@-LDK13

One-touch

connector

attachment

Long-life, Direct-wired Connector Switches

WL@-@LDK43

Direct-wired connector, 4-conductor.

Greatly reduces wiring work.

Water-proof to IP67.

General-purpose, Direct-wired Connector Switches

WLM@-LDK43

Long-life, Direct-wired Connector Switches

WL@-@LD-M1J

General-purpose, Pre-wired Connector Switches

WL@-@S-M1J-1

Pre-wired connector, 2-conductor.

Greatly reduces wiring work.

Water-proof to IP67.

Spatter-prevention, Pre-wired Connector Switches

WLM@-LD-M1J

Connector

Long-life, Pre-wired Connector Switches

attachment in

control and relay

boxes

WL@-@LD-@GJO3

General-purpose, Pre-wired Connector Switches

WL@-@S-@GJSO3

Pre-wired connector, 4-conductor.

Greatly reduces wiring work.

Water-proof to IP67.

Spatter-prevention, Pre-wired Connector Switches

WLM@-LD-@GJO3

Long-life, Pre-wired Connector Switches

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WL/WLM

According to Form of Operation

Detection object

Key specifications

Models

TT (total travel) PT (pretravel)

45°

15°

10°

WLCA2

General-purpose Switches

General

WLCA2-@S Spatter-prevention Switches

WLMCA2

Long-life Switches

80°

WLH2

WLH2-@S

WLMH2

General-purpose Switches

Spatter-prevention Switches

Long-life Switches

Passing dogs

WLG2

WLG2-@S

WLMG2

General-purpose Switches

Spatter-prevention Switches

Long-life Switches

80°

90°

Passing dogs,

high sensitivity

WLCA2-2

WLCA2-2N

25°

20°

90°

WLCA2-2

General-purpose Switches

Passing dogs

High precision

WLCA2-2N General-purpose Switches

5°

45°

WLGCA2 General-purpose Switches

WLGCA2-@S Spatter-prevention Switches

WLMGCA2 Long-life Switches

● Short lever

R38

WL@2

WL@2-@S

WLM@2

Roller Lever Actuators

● One-Horizontal operation possible.

(WLCA@ only)

● Head mounts in any of 4 directions.

● Medium lever

Dogs and

workpieces

(Mounts in any of

4 directions)

R50

R63

● One-Horizontal operation possible.

(WLCA@ only)

● Head mounts in any of 4 directions.

● Long lever

WL@2-7

Roller Lever Actuators

● One-Horizontal operation possible.

(WLCA@ only)

WL@2-8

WL@12

WL@L

Roller Lever Actuators

● Head mounts in any of 4 directions.

● One-Horizontal operation possible.

(WLCA@ only)

R25 to 89

Adjustable between

dog and lever

Adjustable Roller Lever Actuators

Adjustable Rod Lever Actuators

● Head mounts in any of 4 directions.

● One-Horizontal operation possible.

(WLCL only)

● Head mounts in any of 4 directions.

25 to 140

Dogs or workpieces

with large

deflection

● One-Horizontal operation not

possible.

● Head mounts in any of 4 directions.

350 to 380

427.5

WLHAL4

WLHAL5

Adjustable Rod Lever Actuator

Rod Spring Lever Actuator

● One-Horizontal operation not

possible.

● Head mounts in any of 4 directions.

● Head mounts in any of 4 directions. WLCA32-41 Fork Lever Lock Actuator

● Head mounts in any of 4 directions. WLCA32-42 Fork Lever Lock Actuator

● Head mounts in any of 4 directions. WLCA32-43 Fork Lever Lock Actuator

● Head mounts in any of 4 directions. WLCA32-44 Fork Lever Lock Actuator

Round-trip

operation of

passing dogs

WLD

● Head mounts in any of 4 directions. WLSD

WLD3

Top Plunger Actuator

Horizontal Plunger Actuator

Top-ball Plunger Actuator

Cams or

workpieces with

vertical movement

● Head mounts in any of 4 directions. WLSD3

Horizontal-ball Plunger Actuator

● Available in sealed models.

(WLD28@)

WLD2

WLD28

Top-roller Plunger Actuator

Sealed Top-roller Plunger Actuator

WLSD2

Horizontal-roller Plunger Actuator

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WL/WLM

Application Examples

Positioning on Production Lines

High-precision Positioning of Machine Tools

Positioning on Suspended Conveyors

Pallet Detection in Arc Welding Lines

Multilevel Car Parking Towers

Limit Detection is Transport Systems

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WL/WLM

Model Number Structure

Model Number Legend

General-purpose and Environment-resistant Switches

WL @@-@@@@@@@@

(1) (2) (3) (4) (5) (6) (7) (8) (9)(10)

(1) Electrical Rating

(2) Actuator and Head Specifications

Blank Standard

Symbol

CA2

Actuator type

Roller lever: Standard model R38

Switch without lever

WLRCA2

01

Microload

CA2-7 Roller lever: Standard model R50

CA2-8 Roller lever: Standard model R63

WLRCA2

Note: Dimensions are the same as the standard

models.

WLRCA2

(3) Environment-resistant Model

Specifications

H2

G2

Roller lever: General-purpose overtravel model, 80°

Roller lever: High-sensitivity overtravel, 80°

WLRH2

WLRG2

CA2-2 Roller lever: Overtravel, 90°

CA2-2N Roller lever: Overtravel, 90°

GCA2 Roller lever: High-precision R38

WLRCA2-2

WLRCA2-2N

WLRGCA2

WLRCA2

Blank Standard

RP Corrosion-proof *1

P1

Weather-proof *1

CA12

H12

Adjustable roller lever: Standard

Note: Dimensions are the same as the standard

models.

*1. Refer to page 4 for applicable models.

Adjustable roller lever: General-purpose overtravel model, 80° WLRH2

G12

Adjustable roller lever: High-sensitivity overtravel, 80°

WLRG2

(4) Built-in Switch Type

CA12-2 Adjustable roller lever: Overtravel, 90°

CA12-2N Adjustable roller lever: Overtravel, 90°

WLRCA2-2

WLRCA2-2N

WLRCL

Blank Standard

CL

HL

HAL4

GL

Adjustable rod lever: Standard, 25 to 140 mm

Adjustable rod lever: General-purpose overtravel model, 80

55

Hermetically sealed *1

°

, 25 to 140 mm

WLRH2

Note: Dimensions are the same as the standard

models.

*1. Refer to page 4 for applicable models.

, 350 to 380 mm WLRH2

, 25 to 140 mm WLRG2

Adjustable rod lever: High-sensitivity overtravel, 80

(5) Temperature Specifications

CL-2

Adjustable rod lever: Overtravel, 90°, 25 to 140 mm

WLRCA2-2

Blank Standard: –10°C to +80°C

TH Heat-resistant: +5°C to +120°C *1

CL-2N Adjustable rod lever: Overtravel, 90°, 25 to 140 mm

HAL5 Rod spring lever: General-purpose overtravel model, 80°

WLRCA2-2N

WLRH2

TC

Low-temperature: –40

°

C to +40

°

C *1

CA32-41 Fork lever lock: Miantained, WL-5A100

CA32-42 Fork lever lock: Miantained, WL-5A102

CA32-43 Fork lever lock: Miantained, WL-5A104

WLRCA32

Note: Dimensions are the same as the standard

models.

*1. Refer to page 4 for applicable models.

WLRCA32

D

D2

Plunger: Top plunger

—

(7) Conduit Size, Ground Terminal

Specifications *2

Plunger: Top-roller plunger

Plunger: Sealed top-roller plunger

Plunger: Top-ball plunger

D28

D3

Blank G1/2 without ground terminal

G1 G1/2 with ground terminal

SD

Plunger: Horizontal plunger

Plunger: Horizontal-roller plunger

Plunger: Horizontal-ball plunger

Flexible rod: Coil spring

G

Y

TS

Pg13.5 with ground terminal

M20 with ground terminal

SD2

SD3

NJ

1/2-14NPT with ground terminal

Note: Dimensions are the same as the standard

models.

*2. Models with ground terminals are approved by

NJ-30

NJ-2

Flexible rod: Coil spring, multi-wire

Flexible rod: Coil spring, resin rod

NJ-S2 Flexible rod: Steel wire

EN/IEC (CE marking).

(6) Hermetic Model Specifications

(8) Indicator Type

Blank No cables or molding

Symbol

Element

Voltage

Leakage current

General-purpose built-in switch with cables attached and mold-

ed conduit opening and cover (cover cannot be removed). *

Blank No indicator

139

LE

LD

Neon lamp

LED

125 to 250 VAC

115 VAC/VDC

Approx. 0.6 to 1.9 mA

Approx. 0.5 mA

Airtight built-in switch with cables attached and molded conduit open-

140

ing, cover, and box interior cover screws (cover cannot be removed). *

10 to 24 VAC/VDC Approx. 0.4 mA

Airtight built-in switch with cables attached and molded con-

duit opening, cover, head, box interior, cover screws, and

141 head screws (cover cannot be removed, Head direction

cannot be changed). The Head opening is created to pro-

tect it from cutting powder. *

Note: Dimensions are the same for both LE and LD models.

(9) Indicator Wiring

2

3

NC connection: Light-ON when operating

NO connection: Light-ON when not operating

Airtight built-in switch with cables attached and molded conduit

opening, cover, box interior, and cover screws (cover cannot

be removed, Head can be mounted in any of 4 directions). The

145

Note: Include the indicator wiring specification only when a (6) hermetic seal

and (8) operation indicator have been selected.

Head opening is created to protect it from cutting powder. *

Airtight built-in switch with cables attached and molded cover and

(10) Lever Type

box interior (cover cannot be removed, Head direction can be

RP40

changed). SC Connector can be removed, so it is possible to use

Blank Standard lever

flexible conduits for the cable. *

A

Double nut lever

Airtight built-in switch with cables attached, fluorine rubber used,

RP60 and molded conduit opening, cover, and box interior (cover cannot

be removed, Head direction cannot be changed). *

* Refer to page 4 for applicable models.

http://www.ia.omron.com/

9

WL/WLM

Direct-wired Connector

Pre-wired Connector

General-purpose Switches

Sensor I/O Connector Switches

WL @@-@ LD @

(1) (2) (3) (4) (5)

(1) Electrical Rating

(4) Indicator Type

Blank

01

Standard

Microload

LD

LED, 10 to 115 VAC/DC

Note: Dimensions are the same as the standard models.

(5) Wiring Specifications

(2) Actuator Type

K13A

K13

K43A

K43

Direct-wired Connector (2-conductor: AC, NO wiring, connector pins No. 3, 4)

Direct-wired Connector (2-conductor: DC, NO wiring, connector pins No. 3, 4)

Direct-wired Connector (4-conductor: AC)

CA2

Roller lever: Standard model

GCA2

Roller lever: High-precision model

Direct-wired Connector (4-conductor: DC)

Roller lever: General-purpose

overtravel model

H2

G2

-M1J *

Pre-wired Connector *2 (2-conductor: DC, NO wiring, connector pins No. 3, 4)

Roller-lever: High-sensitivity over-

travel model

-M1GJ *1 Pre-wired Connector *2 (2-conductor: DC, NO wiring, connector pins No. 1, 4)

-M1JB

Pre-wired Connector *2 (2-conductor: DC, NC wiring, connector pins No. 3, 2)

Pre-wired Connector *2 (4-conductor, AC)

D2

Top-roller plunger

-AGJ03

D28

Sealed top-roller plunger

-DGJ03 *1 Pre-wired Connector *2 (4-conductor, DC)

-DK1EJ03 *1 Pre-wired Connector *2 (3-conductor: DC, NO wiring, connector pins No. 2, 3, 4)

(3) Built-in Switch Type

*1. Models with pre-wired connectors and DC specifications have EN/IEC approval (CE marking).

*2. With 0.3-m cable attached.

Blank

55

Standard

Hermetically sealed

Note: Dimensions are the same as the standard models.

Spatter-prevention Switches

Long-life Switches

WL @@-@@ S @

WLM@ -LD @

(1) (2) (3) (4)

(5)

(1) (2) (3)

(1) Electrical Rating

(1) Actuator

Blank

01

Standard

Microload

CA2

GCA2

H2

Roller lever: Standard model

Roller lever: High-precision model

Roller lever: General-purpose overtravel model

Roller lever: High-sensitivity overtravel model

Note: Dimensions are the same as the standard models.

G2

(2) Actuator Type

CA2

GCA2

H2

Roller lever: Standard model

(2) Indicator Type

Roller lever: High-precision model

Roller lever: General-purpose Overtravel model

Roller lever: High-sensitivity Overtravel model

Sealed top-roller plunger

LD

LED, 10 to 115 VAC/DC

G2

D28

(3) Wiring Specifications

Blank

K13A

K13

Screw terminal: G1/2 conduit

Direct-wired Connector: 2-conductor, AC

Direct-wired Connector: 2-conductor, DC

Direct-wired Connector: 4-conductor, AC

Direct-wired Connector: 4-conductor, DC

Pre-wired Connector: 2-conductor, DC *

(3) Built-in Switch Type

Blank

55

Standard

K43A

K43

Hermetically sealed

Note: Dimensions are the same as the standard models.

-M1J

(4) Indicator Type

-AGJ03 Pre-wired Connector: 4-conductor, AC *

-DGJ03 Pre-wired Connector: 4-conductor, DC *

* With 0.3-m cable attached.

LD

LE

LED, AC/DC

Neon lamp

Note: Dimensions are the same for both LE and LD models.

(5) Wiring Specifications

Pre-wired Connector *2

(2-conductor: DC, NO wiring, connector pins No. 3, 4)

-M1J-1 *1

Pre-wired Connector *2

(2-conductor: DC, NO wiring, connector pins No. 1, 4)

-M1GJ-1 *1

-DGJS03 *1 Pre-wired Connector *2 (4-conductor: DC)

*1. Models with pre-wired connectors and DC specifications are approved by

EN/IEC (CE marking) except for LE Models (Neon Lamp Models).

*2. With 0.3-m cable attached.

http://www.ia.omron.com/

10

WL/WLM

Ordering Information

General-purpose Switches

Note: Models are also available with ground terminals.

Standard Switches

Actuator

Roller lever R38

Model

Roller lever R50

Roller lever R63

Item

Model

Standard load WLCA2

WLCA2-7

WLCA2-8

Basic

Microload

WL01CA2

WL01CA2-7

WL01CA2-8

Standard load WLH2

—

General-

purpose

Microload

WL01H2

Standard load WLG2

High-

sensitivity

Microload

WL01G2

Overtravel

Standard load WLCA2-2

Microload

Standard load WLCA2-2N

Microload WL01CA2-2N

Standard load WLGCA2

WL01CA2-2

90°

operation

High-precision

Microload

WL01GCA2

Actuator

Adjustable roller

lever

Adjustable rod lever

25 to 140mm

Adjustable rod lever

350 to 380mm

Rod spring lever

Item

Model

WLCL

Model

—

Model

—

Standard load WLCA12

Microload WL01CA12

Standard load WLH12

Microload WL01H12

Standard load WLG12

Basic

WL01CL

WLHL

WL01HL

WLGL

—

WLHAL4

WLHAL5

General-

purpose

—

High-

sensitivity

Microload

Standard load WLCA12-2

Microload L01CA12-2

Standard load WLCA12-2N

Microload WL01CA12-2N

WL01G12

WL01GL

WLCL-2

—

Overtravel

W

90°

operation

WLCL-2N

WL01CL-2N

Actuator Fork lever lock (with

WL-5A100 Plastic

Fork lever lock (with

WL-5A102 Plastic

Roller Lever)

Fork lever lock (with

WL-5A104 Plastic

Roller Lever)

Fork lever lock (with

WL-5A104 Plastic

Roller Lever)

Item

Model

WLCA32-42

WL01CA32-42

Model

WLCA32-43

WL01CA32-43

Model

WLCA32-44

WL01CA32-44

Standard load WLCA32-41

Maintained

Microload

WL01CA32-41

Actuator

Sealed top-roller

plunger

Top plunger

Top-roller plunger

Top-ball plunger

Item

Model

WLD2

Model

WLD3

Model

WLD28

Standard load WLD

Microload WL01D

Basic

WL01D2

WL01D3

WL01D28

Actuator

Horizontal-roller

plunger

Horizontal-ball

plunger

Horizontal plunger

Model

Item

Model

WLSD2

Model

WLSD3

Standard load WLSD

Microload WL01SD

Basic

WL01SD2

WL01SD3

Actuator

Coil spring (spring

diameter: 6.5)

Coil spring (spring

diameter: 4.8)

Coil spring (spring

diameter: 8)

Steel wire (wire

diameter: 1)

Item

Model

Standard load WLNJ

Microload WL01NJ

Model

WLNJ-30

Model

WLNJ-2

Model

WLNJ-S2

Basic

WL01NJ-30

WL01NJ-2

WL01NJ-S2

http://www.ia.omron.com/

11

WL/WLM

General-purpose Switches

Indicator-equipped Switches

Actuator

Adjustable roller

lever

Roller lever R38

Roller lever R50

Roller lever R63

Item

Model

WLCA2-LE

WLCA2-LD

WLH2-LE

Model

WLCA2-7LE

Model

WLCA2-8LE

Model

Neon lamp

WLCA12-LE

WLCA12-LD

WLH12-LE

WLH12-LD

WLG12-LE

WLG12-LD

WLCA12-2LE

WLCA12-2LD

WLCA12-2NLE

WLCA12-2NLD

—

Basic

LED

WLCA2-7LD

WLCA2-8LD

Neon lamp

LED

—

General-

purpose

WLH2-LD

Neon lamp

LED

Neon lamp

LED

WLG2-LE

High-

sensitivity

WLG2-LD

Overtravel

WLCA2-2LE

WLCA2-2LD

WLCA2-2NLE

WLCA2-2NLD

WLGCA2-LE

WLGCA2-LD

90°

operation

Neon lamp

LED

Neon lamp

LED

High-precision

—

Actuator

Adjustable rod lever

25 to 140 mm

Adjustable rod lever

350 to 380 mm

Rod spring lever

Item

Model

WLCL-LE

Model

—

Model

—

Neon lamp

LED

Basic

WLCL-LD

—

Neon lamp

LED

WLHL-LE

WLHL-LD

WLHAL4-LE

WLHAL4-LD

WLHAL5-LE

WLHAL5-LD

General-

purpose

Neon lamp

LED

Neon lamp

LED

WLGL-LE

—

High-

sensitivity

WLGL-LD

Overtravel

WLCL-2LE

WLCL-2LD

WLCL-2NLE

WLCL-2NLD

90°

operation

Neon lamp

LED

Actuator Fork lever lock (with

WL-5A100 Plastic

Fork lever lock (with

WL-5A102 Plastic

Roller Lever)

Fork lever lock (with

WL-5A104 Plastic

Roller Lever)

Item

Model

WLCA32-42LE

WLCA32-42LD

Model

WLCA32-43LE

WLCA32-43LD

Neon lamp

LED

WLCA32-41LE

WLCA32-41LD

Maintained

Actuator

Sealed top-roller

plunger

Top plunger

Top-roller plunger

Top-ball plunger

Item

Model

WLD-LE

Model

WLD2-LE

Model

WLD3-LE

Model

WLD28-LE

Neon lamp

LED

Basic

WLD-LD

WLD2-LD

WLD3-LD

WLD28-LD

Actuator

Horizontal-roller

plunger

Horizontal-ball

plunger

Horizontal plunger

Item

Model

WLSD-LE

Model

WLSD2-LE

Model

WLSD3-LE

Neon lamp

LED

Basic

WLSD-LD

WLSD2-LD

WLSD3-LD

Actuator

Coil spring (spring

diameter: 6.5)

Coil spring (spring

diameter: 4.8)

Coil spring (spring

diameter: 8)

Steel wire (wire

diameter: 1)

Item

Model

WLNJ-LE

Model

WLNJ-30LE

WLNJ-30LD

Model

WLNJ-2LE

Model

WLNJ-S2LE

WLNJ-S2LD

Neon lamp

LED

Basic

WLNJ-LD

WLNJ-2LD

http://www.ia.omron.com/

12

WL/WLM

General-purpose Switches

Sensor I/O Connector Switches

Direct-wired Connectors

Item

Overtravel

Basic

High-precision

General-purpose

High-sensitivity

Built-in switch

specification

Standard

Wiring

Model

Actuator

WLCA2-LDK13

WLH2-LDK13

WLG2-LDK13

WLG2-55LDK13

WLGCA2-LDK13

Roller lever

2-conductor DC

WLGCA2-

55LDK13

Airtight seal

WLCA2-55LDK13 WLH2-55LDK13

WLCA2-LDK43 WLH2-LDK43

WLCA2-55LDK43 WLH2-55LDK43

Standard

Airtight seal

Standard

WLG2-LDK43

WLG2-55LDK43

WLGCA2-LDK43

4-conductor DC

2-conductor DC

4-conductor DC

WLGCA2-55LDK43

WLD2-LDK13

WLD2-55LDK13

WLD2-LDK43

WLD2-55LDK43

—

Top-roller

plunger

Airtight seal

Standard

Airtight seal

Pre-wired Connectors

Item

Overtravel

Basic

High-precision

Model

General-purpose

High-sensitivity

Built-in switch

specification

Wiring

NO

Model

Actuator

Standard

WLCA2-LD-M1J

WLH2-LD-M1J

WLG2-LD-M1J

—

WLGCA2-LD-M1J

No. 3, 4

No. 1, 4

Airtight seal WLCA2-55LD-M1J

Standard

Airtight seal WLCA2-55LD-M1GJ

Standard

—

WLGCA2-55LD-M1J

WLCA2-LD-M1GJ WLH2-LD-M1GJ

WLG2-LD-M1GJ

WLG2-55LD-M1GJ

WLG2-LD-M1JB

WLGCA2-LD-M1GJ

2-con-

DC

ductor

—

Roller lever

—

NC No. 3, 2

Airtight seal WLCA2-55LD-M1JB

Standard

Airtight seal WLCA2-55LD-DGJ03

Standard WLCA2-LD-DK1EJ03

Airtight seal WLCA2-55LD-DK1EJ03

Standard

Airtight seal WLD2-55LD-M1J

Standard WLD2-LD-M1GJ

Airtight seal WLD2-55LD-M1GJ

Standard

WLG2-55LD-M1JB WLGCA2-55LD-M1JB

WLG2-LD-DGJ03

WLG2-55LD-DGJ03 WLGCA2-55LD-DGJ03

WLCA2-LD-DGJ03 WLH2-LD-DGJ03

—

4-con-

ductor

DC

—

WLG2-LD-DK1EJ03

—

3-con-

ductor

No. 2, 3, 4

WLG2-55LD-DK1EJ03

WLD2-LD-M1J

—

No. 3, 4

NO

2-con-

ductor

DC

No. 1, 4

Top-roller

plunger

—

NC No. 3, 2

No. 2, 3, 4

Airtight seal WLD2-55LD-M1JB

Standard

WLD2-LD-DGJ03

—

4-con-

ductor

DC

Airtight seal

Standard

WLD2-LD-DK1EJ03

3-con-

ductor

Airtight seal WLD2-55LD-DK1EJ03

http://www.ia.omron.com/

13

WL/WLM

Environment-resistant Switches

Note: Models are also available with ground terminals.

Actuator

Roller lever R38

Overtravel

Basic

Model

General-purpose

Model

High-sensitivity

Model

Item

No indicator

WLCA2-55

WLH2-55

WLG2-55

Airtight seal

LED

Neon

No indicator

WLCA2-55LD

WLCA2-55LE

WLCA2-139

WLH2-55LD

WLH2-55LE

WLH2-139

WLG2-55LD

WLG2-55LE

WLG2-139

Indicator

-139

-140

-141

NC wiring WLCA2-139LD2

NO wiring WLCA2-139LD3

—

Indicator

—

WLG2-139LD3

WLG2-140

No indicator

WLCA2-140

WLH2-140

WLH2-141

Molded

NC wiring WLCA2-140LD2

NO wiring WLCA2-140LD3

—

WLG2-140LD2

WLG2-140LD3

WLG2-141

terminals

Indicator

Hermetic

seal

No indicator

WLCA2-141

NC wiring WLCA2-141LD2

NO wiring WLCA2-141LD3

—

WLG2-141LD2

WLG2-141LD3

WLG2-RP60

WLG2-RP60LD2

WLG2-RP60LD3

WLG2-TH

Indicator

WLH2-141LD3

WLH2-RP60

—

No indicator

WLCA2-RP60

Anti-coolant

NC wiring WLCA2-RP60LD2

NO wiring WLCA2-RP60LD3

WLCA2-TH

Indicator

WLH2-RP60LD3

WLH2-TH

WLH2-TC

WLH2-RP

WLH2-P1

Heat-resistant

Low-temperature

Corrosion-proof

Weather-proof

WLCA2-TC

WLG2-TC

No indicator

WLCA2-RP

WLG2-RP

WLG2-P1

—

Actuator

Roller lever R38

Overtravel

High-sensitivity

90° (-2 model)

90° (-2N model)

Item

Model

WLCA2-255

Model

WLCA2-2N55

Model

WLGCA2-55

No indicator

LED

Neon

No indicator

Airtight seal

WLCA2-255LD

WLCA2-255LE

WLCA2-2139

WLCA2-2N55LD

WLGCA2-55LD

WLGCA2-55LE

WLGCA2-139

WLGCA2-139LD2

WLGCA2-139LD3

WLGCA2-140

WLGCA2-140LD2

WLGCA2-140LD3

WLGCA2-141

—

Indicator

WLCA2-2N55LE

WLCA2-2N139

-139

-140

-141

NC wiring WLCA2-2139LD2

NO wiring WLCA2-2139LD3

—

Indicator

No indicator

NC wiring

NO wiring

No indicator

NC wiring

NO wiring

No indicator

—

WLCA2-2140

WLCA2-2N140

Molded

terminals

—

Indicator

—

Hermetic

seal

—

Indicator

—

WLGCA2-141LD3

WLGCA2-RP60

WLGCA2-RP60LD2

WLGCA2-RP60LD3

WLGCA2-TH

WLCA2-2RP60

—

Anti-coolant

NC wiring WLCA2-2RP60LD2

NO wiring WLCA2-2RP60LD3

WLCA2-2TH

—

Indicator

Heat-resistant

WLCA2-2NTH

WLCA2-2NTC

—

Low-temperature

Corrosion-proof

No indicator

WLCA2-2TC

WLGCA2-TC

—

WLGCA2-RP

http://www.ia.omron.com/

14

WL/WLM

Actuator

Adjustable roller lever

Overtravel

Basic

Model

General-purpose

High-sensitivity

Item

Model

—

Model

—

No indicator

LED

Neon

WLCA12-55

Airtight seal

WLCA12-55LD

WLCA12-55LE

WLCA12-139

WLCA12-140

WLCA12-141

WLCA12-RP60

WLCA12-TH

WLCA12-TC

WLCA12-RP

—

Indicator

—

-139

-140

-141

—

Molded

terminals

—

Hermetic

seal

No indicator

—

Anti-coolant

—

Heat-resistant

Low-temperature

Corrosion-proof

Weather-proof

WLH12-TH

WLG12-TH

WLH12-TC

WLH12-RP

WLH12-P1

WLG12-TC

WLG12-RP

WLG12-P1

Actuator

Adjustable roller lever

Overtravel

90° (-2 model)

90° (-2N model)

Item

Model

Heat-resistant

Low-temperature

WLCA12-2TH

WLCA12-2TC

WLCA12-2NTH

WLCA12-2NTC

No indicator

Actuator

Adjustable rod lever 25 to 140 mm

Overtravel

Basic

General-purpose

High-sensitivity

Item

Model

WLCL-55

WLCL-55LD

—

Model

—

Model

—

No indicator

LED

Neon

Airtight seal

—

Indicator

—

-139

-140

-141

WLCL-139

WLCL-140

—

Molded

terminals

—

Hermetic

seal

No indicator

—

Anti-coolant

WLCL-RP60

WLCL-TH

WLCL-TC

WLCL-RP

—

Heat-resistant

WLHL-TH

WLGL-TH

Low-temperature

Corrosion-proof

WLHL-TC

WLHL-RP

WLGL-TC

WLGL-RP

Actuator

Adjustable rod lever 25 to 140 mm

Overtravel

90° (-2 model)

Model

WLCL-2TH

90° (-2N model)

Model

WLCL-2NTH

WLCL-2NTC

Item

Heat-resistant

Low-temperature

Corrosion-proof

No indicator

WLCL-2TC

WLCL-2RP

—

http://www.ia.omron.com/

15

WL/WLM

Actuator

Top-roller plunger

Sealed top-roller plunger

Horizontal plunger

Item

Model

WLD2-55

Model

WLD28-55

Model

WLSD-55

WLSD-55LD

No indicator

LED

Neon

Airtight seal

WLD2-55LD

WLD2-55LE

WLD28-55LD

WLD28-55LE

Indicator

—

-139

-140

WLD2-139

WLD28-139

WLD28-140

WLSD-139

Molded

Hermetic

seal

terminals

No indicator

—

Anti-coolant

WLD2-RP60

WLD2-TH

WLD2-TC

WLD2-RP

WLD28-RP60

WLD28-TH

—

WLSD-RP60

WLSD-TH

WLSD-TC

WLSD-RP

Heat-resistant

Low-temperature

Corrosion-proof

WLD28-RP

Note: The standard cable length for models with airtight seals is 5 m.

Actuator

Horizontal-roller

plunger

Coil spring (spring

diameter: 6.5)

Coil spring (spring

diameter: 8)

Item

Model

WLSD2-55

WLSD2-55LD

—

Model

WLNJ-55

WLNJ-55LD

—

Model

WLNJ-255

WLNJ-255LD

—

No indicator

LED

Neon

Airtight seal

Indicator

-139

-140

WLSD2-139

WLSD2-140

WLNJ-139

WLNJ-140

—

Molded

Hermetic

seal

terminals

No indicator

WLNJ-2140

Anti-coolant

WLSD2-RP60

WLSD2-TH

WLSD2-TC

WLSD2-RP

WLNJ-RP60

WLNJ-TH

WLNJ-TC

WLNJ-RP

WLNJ-2RP60

—

Heat-resistant

Low-temperature

Corrosion-proof

WLNJ-2TC

WLNJ-2RP

Note: The standard cable length for models with airtight seals is 5 m.

http://www.ia.omron.com/

16

WL/WLM

Spatter-prevention Switches

Actuator

Roller lever

Sealed top-roller plunger

Double nut lever

Allen-head lever

Model

Item

Model

WLCA2-LEAS

WLH2-LEAS

WLG2-LEAS

—

Model

WLD28-LES

Basic

WLCA2-LES

WLH2-LES

Neon lamp

operation

indicator

General-purpose

High-sensitivity

—

Overtravel

WLG2-LES

High-precision

Basic

WLGCA2-LES

WLCA2-LDS

WLH2-LDS

WLCA2-LDAS

WLH2-LDAS

WLG2-LDAS

—

WLD28-LDS

LED

operation

indicator

General-purpose

High-sensitivity

—

Overtravel

WLG2-LDS

WLGCA2-LDS

High-precision

Note: Ask your OMRON representative about WL01@-@S Microload Switches.

Long-life Switches

Item

LED operation indicator *1

Overtravel

Basic

High-precision

Model

General-purpose

Model

High-sensitivity

Model

Actuator

Model

Roller lever, screw

terminal

WLMCA2-LD

WLMH2-LD

WLMG2-LD

WLMGCA2-LD

AC WLMCA2-LDK13A

DC WLMCA2-LDK13

AC WLMCA2-LDK43A

DC WLMCA2-LDK43

WLMH2-LDK13A

WLMH2-LDK13

WLMH2-LDK43A

WLMH2-LDK43

WLMG2-LDK13A

WLMG2-LDK13

WLMG2-LDK43A

WLMG2-LDK43

WLMGCA2-LDK13A

WLMGCA2-LDK13

WLMGCA2-LDK43A

WLMGCA2-LDK43

2-conductor

4-conductor

Roller lever,

direct-wired

connector

2-conductor DC WLMCA2-LD-M1J

4-conductor DC WLMCA2-LD-DGJ03

WLMH2-LD-M1J

WLMG2-LD-M1J

WLMGCA2-LD-M1J

Roller lever,

pre-wired

connector *2

WLMH2-LD-DGJ03

WLMG2-LD-DGJ03

WLMGCA2-LD-DGJ03

*1. The default setting is "light-ON when not operating."

Turn the lamp holder by 180° to change the setting to "light-ON when operating". (Ask your OMRON representative about 2-conductor models.)

*2. With 0.3-m cable attached.

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17

WL/WLM

Individual Parts

Heads

Actuator type

Set model

WLCA2

Head model (with Actuator)

WL-1H1100

Actuator type

Top plunger

Set model

WLD

Head model (with Actuator)

WL-7H100

WLG2

WL-2H1100

WL-2H1100-1 *

WL-3H1100

WLD2

WL-7H200

WL-7H300

Roller lever

WLH2

WLD3

WLCA2-2

WLCA2-2N

WLCA12

WLG12

WLD28

WL-7H400

WL-6H1100

WL-1H2100

WLSD

WL-8H100

WL-8H200

Horizontal

plunger

WLSD2

WL-2H2100

WLSD3

WL-8H300

Adjustable

roller lever

WLH12

WL-2H2100-1 *

WL-3H2100

WLCA32-41

WLCA32-42

WLCA32-43

WLCA32-44

WLNJ

WL-5H5100

WL-5H5102

WL-5H5104

WL-9H100

WLCA12-2

Fork lever

lock

WLCA12-2N WL-6H2100

WLCL

WL-4H4100

WL-2H4100

WL-3H4100

WL-6H4100

WLGL

Adjustable

rod lever

WLCL-2

WLCL-2N

WLNJ-30

WLNJ-2

WLNJ-S2

WL-9H200

Coil spring

WL-9H300

WL-9H400

* The model number of Heads without levers are same as those of Heads with levers without the numbers at the end.

Example: WL-1H1100 becomes WL-1H without the lever.

However, the WLH2 and WLH12 become WL-2H-1 and the WLGCA2 becomes WL-1H-1 for the Heads without levers.

Other Heads are also available. Ask your OMRON representative.

Switches without levers

Model

Actuator type

Basic R38

WLRCA2

WLRGCA2

WLRG2

High-precision R38

High-sensitivity overtravel, 80°

General-purpose overtravel, 80°

Overtravel, 90° operation

Basic

Switches for roller levers

WLRH2

WLRCA2-2

WLRCA2-2N

WLRCA2

WLRG2

High-sensitivity overtravel, 80°

General-purpose overtravel, 80°

Overtravel, 90° operation

Basic, 25 to 140 mm

Switches for adjustable

roller levers

WLRH2

WLRCA2-2

WLRCA2-2N

WLRCL

High-sensitivity overtravel, 80°, 25 to 140 mm WLRG2

Switches for adjustable

rod lever

Overtravel, 90° operation, 25 to 140 mm

WLRCA2-2

WLRCA2-2N

Switches for top plungers

—

Switches for horizontal

plungers

—

Maintained, WL-5A100

Maintained, WL-5A102

Maintained, WL-5A104

Switches for fork

lever locks

WLRCA32

Switches for coil springs

—

Covers with Operation Indicators

Cover

Cover only with

indicator

Item

Model

Neon lamp

LED

WL-LE

WL-LD

Note: The default setting is "light-ON when not operating."

Turn the lamp holder by 180° to change the setting to "light-ON when operating."

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18

WL/WLM

Spatter-prevention Products

Head (with actuator)

Lever

Cover with indicator Switches without Levers

Complete Heads

Double Nut

with allen-head

Lever

Switches

Allen-head

Lever

Double Nut

Lever

Cover with

without

Indicator

levers

Model

WLRCA2-LDS

Neon lamp

WL-LES

WL-1A103S

Roller lever

(forward and

backward lever)

WL-1A105S

Roller Lever

(forward and

backward lever)

WLRH2-LES

WLRH2-LDS

WLRG2-LDS

WL-1H1100S

(for WLCA2-@ or

WLGCA2-@)

WL-2H1100S

(for WLH2-@ or

WLG2-@)

LED (LED)

WL-LDS

WLRGCA2-LES

WL Head Replacement

Heads can be replaced within the same model group. They cannot be replaced between different model groups.

Group No.

Set model number

WLCA2

Head model number (with Actuator)

WL-1H1100

WL-1H1200

WL-1H1300

WL-1H2100

WL-4H4100 *

WL-2H1100-1

WL-2H2100-1

WL-2H4100

WL-2H4106

WL-2H4107

WL-6H1100

WL-6H2100

WL-6H4100

WL-3H1100

WL-3H2100

WL-3H4100

WL-2H1100

WL-2H2100

WL-2H4100

WL-5H5100

WL-5H5102

WL-5H5104

WL-7H100

WLCA2-7

WLCA2-8

WLCA12

WLCL

1

2

WLH2

WLH12

3

WLHL

WLHAL4

WLHAL5

WLCA2-2N

WLCA12-2N

WLCL-2N

WLCA2-2

WLCA12-2

WLCL-2

WLG2

4

5

6

WLG12

WLGL

WLCA32-41

WLCA32-42

WLCA32-43

WLCA32-44

WLD

7

8

9

WLD2

WL-7H200

WL-7H300

WLD3

WLD28

WL-7H400 *

WL-8H100

WLSD

10

WLSD2

WL-8H200

WLSD3

WL-8H300

WLNJ

WL-9H100

WL-9H200

11

WLNJ-30

WLNJ-2

WLNJ-S2

12

13

WL-9H300 *

WL-9H400 *

* This Heads are special and must be used. Do not use any other Head.

Specifications

Approved Standards

Agency

UL

Standard

UL508

File No.

E76675

Approved models

All modes with direct-wired connectors or pre-wired connectors except for her-

metically sealed models

CSA

CSA C22.2 No.14

LR45746

J50022353

J9950023

J9950959

Only models with ground terminals

TÜV Rheinland

CCC (CQC)

EN60947-5-1

GB14048.5

Models with direct-wired connectors and no ground terminal

Only models with pre-wired connectors and DC specifications

2004010305128675 Contact your OMRON representative for information on approved models.

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19

WL/WLM

General-purpose Switches

Ratings

Standard-load Switches

Microload Switches (Refer to these ratings before using the product.)

Item

Non-inductive load (A)

Inductive load (A)

Rated voltage (V)

AC 125

Resistive load (A)

Rated

voltage

(V)

Resistive

load

Lamp

load

Inductive

load

Motor

load

0.1

DC 30

Model

NC NO NC NO NC NO NC NO

Operation in the following ranges will produce optimum performance.

125 VAC

250 VAC

500 VAC

10

3

2

1.5

1

10

3

5

3

2.5

1.5

Basic models,

overtravel

5 to 30 VDC

Recommended load range

1.5 0.8

models(except

for high-

0.5 to 100 mA

8 VDC

10

6

0.8

0.4

6

4

3

10

6

0.8

0.4

6

4

sensitivity

14 VDC

30 VDC

125 VDC

250 VDC

models), and

high-precision

models

0.2 0.2

0.1 0.1

0.2

0.1

125 VAC

250 VAC

5

High-

—

sensitivity

overtravel

models

125 VDC

250 VDC

0.4

0.2

30

Note: 1. The above figures are for steady-

state currents.

30 A max.

NC

10

5

(15 A max. *)

Inrush

current

2. Inductive loads have a power factor of

0.4 min. (AC) and a time constant of 7

ms max. (DC).

20 A max.

(10 A max. *)

NO

5mW

0.8W

100

3. A lamp load has an inrush current of 10

times the steady-state current.

4. A motor load has an inrush current of

6 times the steady-state current.

5. For PC loads, use the microload models.

* For high-sensitivity

overtravel models.

1

0.1 0.16

1

5

10

Current (mA)

Approved Standard Ratings

UL/CSA

Characteristics

Degree of protection

IP67

Mechanical

Electrical

15,000,000 operations min. *2

750,000 operations min. *3

1 mm/s to 1 m/s (in case of WLCA2)

120 operations/minute min.

30 operations/minute min.

50/60 Hz

Standard-load Switches: A600, NEMA

Durability *1

Current (A)

Volt-amperes (VA)

Rated

voltage

Carry

current

Operating speed

Make

Break

Make

Break

Mechanical

Electrical

Operating

frequency

120 VAC

240 VAC

480 VAC

600 VAC

60

30

15

12

6

3

Rated frequency

10 A

7,200

720

1.5

1.2

Insulation resistance

Contact resistance

100 MΩ min. (at 500 VDC)

25 mΩ max. (initial value)

Between terminals

Microload Switches

0.1 A 125 VAC, 0.1 A 30 VDC

1,000 VAC (600 VAC), 50/60 Hz for 1 min

of the same polarity

Between current-

carryingmetalpart

and ground

2,200 VAC (1,500 VAC), 50/60 Hz for 1

min/Uimp 2.5 kV

Dielectric

strength

TÜV (EN60947-5-1) (Only models with ground terminals are approved.)

Between each termi-

nal and non-current-

carrying metal part

Application category

and ratings

Thermal

2,200 VAC (1,500 VAC), 50/60 Hz for 1

min/Uimp 2.5 kV

Model

WL@

Indicator

current (I^the)

AC-15: 2 A/250 V

DC-12: 2 A/48 V

Rated insulation voltage (Ui)

250 V (EN60947-5-1)

3 (EN60947-5-1)

10 A

—

Pollution degree (operating

environment)

AC-14: 0.1 A/125V

DC-12: 0.1 A/48 V

WL01@

0.5 A

Short-circuit protective device (SCPD) 10 A, fuse type gG or gI (IEC60269)

Conditional short-circuit current 100 A (EN60947-5-1)

WL@-LE

AC-15: 2 A/250 V

10 A

Neon lamp

Conventional enclosed thermal

10 A, 0.5 A (EN60947-5-1)

current (Ithe)

WL01@-LE AC-14: 0.1 A/125 V

0.5 A

AC-15: 2 A/115 V

DC-12: 2 A/48 V

WL@-LD

10 A

LED

Protection against electric shock Class I

Vibration

Malfunction

10 to 55 Hz, 1.5-mm double amplitude *4

AC-14: 0.1 A/115 V

DC-12: 0.1 A/48 V

resistance

WL01@-LD

0.5 A

Destruction

Malfunction

1,000 m/s²min.

300 m/s²min. *4

Shock

resistance

Note: As an example, AC-15: 2 A/250 V means the following:

Ambient operating temperature –10°C to +80°C (with no icing) *5

Application category

AC-15

Ambient operating humidity

Weight

35% to 95%RH

Rated operating current (Ie) 2A

Rated operating voltage (Ue) 250V

Approx. 275 g (in case of WLCA2)

Note: 1. The above figures are initial values.

2. The figures in parentheses for dielectric strength are those for the high-

sensitivity overtravel models.

Indicator-equipped Switches

*1. The values are calculated at an operating temperature of +5

°C to +35°C and an

operating humidity of 40% to 70%RH. Contact your OMRON sales

Model

WL-LE

Item Max. rated voltage (V) Leakage current (mA)

representative for more detailed information on other operating environments.

*2. Durability is 10,000,000 operations min. for general-purpose or high-

sensitivity overtravel models, and for flexible rod models.

*3. Durability is 500,000 operations min. for high-sensitivity models. All

microload models however, are 1,000,000 operations min.

*4. Except flexible rod models. The shock resistance (malfunction) for

microload models is 200 m/s²min.

125 AC

250 AC

Approx. 0.6

Approx. 1.9

Approx. 0.5

Approx. 0.4

Neon

lamp

115 AC/DC

10 to 24 AC/DC

WL-LD LED

*5. For low-temperature models this is –40°C to +40°C (with no icing). For heat-

resistant models the range is +5°C to +120°C.

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20

WL/WLM

Spatter-prevention Switches

Ratings

Characteristics

Item

Non-inductive load (A)

Inductive load (A)

Degree of protection

IP67

Rated

voltage (V)

Resistive

load

Lamp

load

Inductive

load

Motor

load

Mechanical

15,000,000 operations min. *2

750,000 operations min. *3

1 mm/s to 1 m/s (in case of WLCA2)

120 operations/minute min.

30 operations/minute min.

50/60 Hz

Durability *1

Electrical

Operating speed

Model

NC NO NC NO NC NO NC NO

125 VAC

250 VAC

10

3

2

1.5

1

10

5

3

2.5

1.5

WL@-LES

Mechanical

Electrical

Operating

frequency

115 VAC

10

3

1.5

10

5

2.5

12 VDC

24 VDC

48 VDC

10

6

3

6

4

2

3

1.5

10

6

3

6

4

2

Rated frequency

Insulation resistance

Contact resistance

Between

WL@-LDS

100 MΩ min. (at 500 VDC)

25 mΩ max. (initial value)

Note: 1. The above figures are for steady-state currents.

2. Inductive loads have a power factor of 0.4 min. (AC) and a time

constant of 7 ms max. (DC).

3. A lamp load has an inrush current of 10 times the steady-state current.

4. A motor load has an inrush current of 6 times the steady-state current.

terminals of 1,000 VAC (600 VAC), 50/60 Hz for 1

the same

polarity

min

Between

current-

NC

NO

30 A max.

20 A max.

Inrush

2,200 VAC (1,500 VAC), 50/60 Hz for

1 min/Uimp 2.5 kV

Dielectric carrying

current

strength

metal part

and ground

Operating temperature –10°C to +80°C (with no icing)

Operating humidity 95%RH max.

Between each

terminal and

non-current-

carrying metal

part

2,200 VAC (1,500 VAC), 50/60 Hz for

1 min/Uimp 2.5 kV

Approved Standard Ratings

UL/CSA

LE Switches (Neon lamp): A300

Rated insulation voltage (Ui) 250 V (EN60947-5-1)

Current (A)

Volt-amperes (VA)

Rated

voltage

Carry

current

Pollution degree

(operating environment)

3 (EN60947-5-1)

Make

Break

Make

Break

120 VAC

240 VAC

60

30

6

3

Short-circuit protective

device (SCPD)

10 A

7,200

720

10 A, fuse type gG or gI (IEC60269)

Conditional short-circuit

current

100 A (EN60947-5-1)

10 A, 0.5 A (EN60947-5-1)

Class I

LD Switches (LED)

Conventional enclosed

thermal current (Ithe)

Protection against

electric shock

Rated voltage

115 VAC

Carry current

10 A

115 VDC

0.8 A

Vibration

resistance

Malfunction 10 to 55 Hz, 1.5-mm double amplitude

CCC (GB14048.5)

Destruction

Malfunction 300 m/s²min.

1,000 m/s²min.

Model

Application category and ratings

Shock

resistance

AC-15: 2 A/250 V

DC-12: 2 A/48 V

WL@

Ambient operating

temperature

–10°C to +80°C (with no icing)

AC-14: 0.1 A/125V

DC-12: 0.1 A/48 V

WL01@

Ambient operating

humidity

35% to 95%RH

WL@-LE

AC-15: 2 A/250 V

WL01@-LE

AC-14: 0.1 A/125 V

Weight

Approx. 275 g (in case of WLCA2)

AC-15: 2 A/115 V

DC-12: 2 A/48 V

Note: 1. The above figures are initial values.

WL@-LD

2. The figures in parentheses for dielectric strength are those for the high-

sensitivity overtravel models.

*1. The values are calculated at an operating temperature of +5°C to +35°C and

an operating humidity of 40% to 70%RH. Contact your OMRON sales

representative for more detailed information on other operating

environments.

AC-14: 0.1 A/115 V

DC-12: 0.1 A/48 V

WL01@-LD

Note: As an example, AC-15: 2 A/250 V means the following:

*2. Durability is 10,000,000 operations min. for general-purpose or high-

sensitivity overtravel models.

Application category

AC-15

*3. Durability is 500,000 operations min. for high-precision models. All

microload models however, are 1,000,000 operations min.

Rated operating current (Ie) 2 A

Rated operating voltage (Ue) 250 V

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21

WL/WLM

Long-life Switches

Ratings

General Ratings (Refer to these ratings before using the product.)

Screw Terminal Switches Direct-wired Connector and Pre-wired Connector Switches

Item

Non-inductive load (A)

Inductive load (A)

Non-inductive load (A)

Inductive load (A)

Inductive

load

NC

Rated

voltage

(V)

Rated

Model voltage

(V)

Resistive

load

Lamp

load

Inductive

load

Motor

load

Resistive

Lamp load

load

Motor load

Model

NC NO NC NO NC NO NC NO

NC

3

NO

3

NC

3

NO

3

NO

3

NC

3

NO

3

115 AC

10

3

1.5

10

5

2.5

12 DC

3

Basic models, over-

travel models, (except

for high-sensitivity

models), and high-

precision models

12 DC

24 DC

48 DC

115 DC

10

6

3

6

4

2

3

1.5

10

6

3

6

4

2

24 DC

DC

3

48 DC

3

115 DC

0.8

3

0.8

3

0.2

3

0.2

1.5

0.8

3

0.8

3

0.2

3

0.2

2.5

0.8

0.2 0.2

0.8

0.2

AC

115 AC

115 DC

5

—

High-sensitivity

overtravel models

Note: 1. The above figures are for steady-state currents.

0.4

—

2. Inductive loads have a power factor of 0.4 min. (AC) and a time

constant of 7 ms max. (DC).

3. A lamp load has an inrush current of 10 times the steady-state current.

4. A motor load has an inrush current of 6 times the steady-state current.

NC

NO

30 A max. (15 A max. *)

20 A max. (10 A max. *)

Inrush

current

* For high-sensitivity overtravel models.

Characteristics

Degree of protection

Engineering Data

Electrical Durability: cosφ= 1

IP67

(Operating temperature: +5°C to +35°C, operating humidity: 40% to

70%RH)

Mechanical 30,000,000 operations min.

30,000,000 operations min. (10 mA at

24 VDC, resistive load)

1,000

Durability *

Operating frequency:

30 operations/min cos φ= 1

750,000 operations min. (10 A at 115

VAC, resistive load), but for high-pre-

cision models: 500,000 operations

min. (10 A at 115 VAC, resistive load)

Electrical

500

125 VAC

300

250 VAC

Operating speed

1 mm/s to 1 m/s (in case of WLCA2)

Mechanical 120 operations/minute

Operating

frequency

480 VAC

100

Electrical

30 operations/minute

50/60 Hz

Rated frequency

Insulation resistance

Contact resistance

Between

50

100 MΩ min. (at 500 VDC)

25 mΩ max. (initial value)

30

10

terminalsof

the same

polarity

1,000 VAC (except connector models)

0

2

4

6

8

10

12

Switching current (A)

Between

current-

carrying

Dielectric

strength

(50/60 Hz

for 1 min)

2,200 VAC (1,500 V)

metal part

and ground

Between each

terminal and

non-current-

carrying metal

part

2,200 VAC (1,500 V)

Vibration

resistance

Malfunction 10 to 55 Hz, 1.5-mm double amplitude

Destruction 1,000 m/s²min.

Malfunction 300 m/s²min.

Shock

resistance

Ambient operating

temperature

–10°C to +80°C (with no icing)

Ambient operating

humidity

35% to 95%RH

Weight

Approx. 275 g (in case of WLCA2)

Note: The figures in parentheses for dielectric strength, are those for overtravel

(high-sensitivity) or connector models.

* The values are calculated at an operating temperature of +5°C to +35°C, and

an operating humidity of 40% to 70%RH. Contact your OMRON sales

representative for more detailed information on other operating environments.

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22

WL/WLM

Structure and Nomenclature

Structure

General-purpose Switches

Head-mounting Screws

Actuator

Roller

Head

The roller is made of self-lubricating

The Head used in the roller lever type,

adjustable rod lever type, or horizontal

plunger type (except for 90° operation

models) can be mounted in any of the

four directions by removing the screws

at the four corners of the Head.

sintered stainless steel and boasts

high resistance to wear.

Lever

The lever forged of anti-corrosive

aluminium alloy features high corrosion

resistances and outstanding ruggedness.

With roller lever, adjustable rod and

flexible rod models, the actuator position

can be set anywhere within 360°. (The

lever cannot be mounted in the opposite

direction.)

Shaft Section Seal

By fitting an O-ring to the rotary shaft

and with an appropriate interference

of the screws, high-sealing properties

are maintained.

Roller Lever Setscrew

Operational Plunger *2

Set Position Marker Plate

After operation, set the indicator needle

on the marker plate so that is in the

convex section of the bearing. For the

WLD2, insert the needle so that it is

between the two main wires on the

plunger.

Bearing

The bearing smooths the

plunger movement.

Built-in Switch

Built-in switch with SPST-NO+NC

contact form.

Requires maintenance

(excessive overtravel)

Proper range

Requires maintenance (insufficient overtravel)

Proper range

Requires maintenance

(excessive overtravel)

Terminal Screws

Four, M4 screws

Separator

Cover Seal

The separator has outstanding insulation

properties and prevents the generation of any

gases which may corrode the internal parts.

By using a packing seal as the cover seal,

an optimum squeeze can be obtained and

high sealing properties are assured as well.

Conduit Opening *1

Cover

The conduit threads are parallel threads

for G½ tube and offer further increased

sealing properties when used in

conjunction with the SC connector.

Cover Setscrew

Phillips screws are used

to ensure ease of use.

*1. The display for conduit threads has changed from PF½ to G½, according to revisions of JIS B 0202. This is only a change in the display, so the thread size and

pitch have not changed. (Conduit threads Pg 13.5 and ½-14NPT are also available.)

*2. By changing the orientation of the operational plunger, three operational directions can be selected electrically.

(This is possible only with standard roller lever, adjustable roller lever, and adjustable rod lever models. For the overtravel models, only 90° operation models have

this function.)

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23

WL/WLM

Indicators

Indicator Covers

Indicator

The indicator covered if outsert molded

from diecast aluminum and has

outstanding sealing properties.

The indicator is either a neon lamp or

an LED. Models with LED indicators

have a built-in rectifier stack, so it is not

necessary to change the polarity.

Indicator Windows

Operation (i.e., light-ON when operating

or light-ON when not operating) depends

on whether a neon lamp or LED is used.

Contact Spring

The built-in switch's terminal screws

are used to connect the indicator

terminal. Since the connection spring

(coil spring) is used for this connection,

it will not be necessary to connect the

indicator terminal. When a ground

terminal is provided however, a lead

wire must be used.

Light-ON when Operating/Not Operating

Indicators can be switched from light-ON

when operating and light-ON when not

operating, by simply rotating the indicator

holder by 180°.

(Molded terminals cannot be switched in

this way.)

Light-ON when Operating

Light-ON when Not Operating

LED at top

LED at bottom

Operation

Internal Circuits

Power

Neon lamp

Built-in switch

Za

Contact spring

Resistor

4

1

3

2

WL-LE

Light-ON when

operating *1

Load

Internal circuits

WL-LE

WL-LD

Rectifier stack

Contact spring

Power

Rated

current

diode

Resistor

Internal circuits

WL-LD

Za

Light-ON when

not operating *2

Zener

diode

Load

4

1

3

2

LED

Built-in switch

Note: The indicator cover cannot be replaced on the molded terminals. In all cases the indicator does not light when the load is ON.

*1. Light-ON when operating means that the lamp lights when the Limit Switch contacts (NC) release, or when the actuator rotates or is pushed down.

*2. Light-ON when not operating means the lamp remains lit when the actuator is free, or when the Limit Switch contacts (NO) close when the actuator rotates or is

pushed down.

http://www.ia.omron.com/

24

WL/WLM

Environment-resistant Switches

Mold Specifications for Hermetic Seal Switches

: Molded parts

WL@-141

WL@-139

WL@-140

Oil seal for protection against cutting powder

X-ring

Standard

built-in

switch

Airtight

built-in

switch

Airtight

built-in

switch

WL@-145

WL@-RP40

WL@-RP60

Oil seal for protection against cutting powder

X-ring

O-ring

Airtight

built-in

switch

Airtight

built-in

switch

Airtight

built-in

switch

* Florine rubber is used for

all rubber parts.

Model

Cable specifications

WL@-139

Standard 5-m VCT (vinyl cabtire cable) cable attached. Finished diameter: 11.5 mm, 4-conductor.

WL@-140

WL@-141

WL@-145

WL@RP40

WL@RP60

Standard 5-m VCT cable, with high flexibility and good anti-oil properties attached. Finished

diameter: 11.5 mm, 4-conductor.

Spatter-prevention Switches

Actuator

Roller, Roller Axis

Using stainless steel prevents spatter

from adhering.

Screws

SUS304 is used, preventing spatter

Operating Lever

Melamine sinter-painted, it is easy to

peel off the spatter.

from adhering.

Head Cap

Using fluororesin prevents spatter

Double Nut

SUS304 is used for double nut.

from adhering.

*Spatter means the zinc powder

produced when welding.

Adhering spatter to the Limit Switch

may cause malfunction of lever or

lamp cover.

Lamp Cover

· Heat-resistant resin is used for the

lamp cover.

· By using spherical surface for the

display part, it disperses the direction

of spatter.

The lack of gap prevents spatter

powder from clogging.

http://www.ia.omron.com/

25

WL/WLM

Long-life Switches

Release Plunger

Set Position Marker Plate

Hardening method changed for greater

abrasion resistance.

The set position is easy to view.

The stroke is indicated in fluorescent color that

is visible from the slit in the rubber cap.

Long-life Model

Standard Model

Stainless

steel +

Hardening

Standard Model

Long-life Model

Sintered

alloy

Head

The Head can be mounted in any of the

four directions by removing the screws

at the four corners of the Head.

Fluorescent paint

Shaft Section Seal

Requires maintenance (excessive overtravel)

Proper range

Requires maintenance (insufficient overtravel)

Proper range

By fitting a double seal consisting of an

oil seal and an X-ring to the rotary

shaft, even greater sealing properties

are achieved.

Requires maintenance (excessive overtravel)

Standard Model

Long-life Model

Actuator

Roller

Head

The roller is made of self-lubricating stainless

sintered and boasts high resistance to wear.

Mounting

Screws

O-ring

X-ring

Oil seal

Lever

Smoother Movement

The lever forged of anti-corrosive aluminium

alloy features high corrosion resistance and

outstanding ruggedness. With roller lever

models, the actuator position can be set

anywhere within 360°. (The lever cannot be

mounted in the opposite direction.)

A grease holder is provided on the

shaft to prevent the grease from

running out.

Standard Model

Operational Plunger *

Cover Seal

By using a packing seal as the

Long-life Model

cover seal, an optimum squeeze

can be obtained and high sealing

properties are assured as well.

Grease holder

Terminal Screws

Four, M4 screws

Smooth movement is achieved using

olefin grease. (Standard models use

molybdenum disulfide grease.)

Cover

Separator

Bearing

The separator has outstanding

insulation properties and prevents

the generation of any gases

which may corrode the internal

parts.

The bearing smooths the plunger

movement.

Built-in Switch

Built-in switch with SPST-NO+NC

contact form.

Cover Mounting Screw

Phillips screws are used to

ensure ease of use.

Conduit Opening

In addition to level screws which use G½

tube, direct-wired and pre-wired connectors

have been added to the Series.

* By changing the direction of the operational plunger, any one of the three operational directions (both sides, left, or right) can be selected.

(Applicable only to the WLMGCA2-@.)

http://www.ia.omron.com/

26

WL/WLM

Contact Forms

Screw Terminal Switches

Direct-wired Connector, Pre-wired Connector, and

Indicator-equipped (Light-ON when Not Operating)

Switches *1

Za

(NO) 4

3 (NO)

2 (NC)

(NC) 1

AC

DC

Internal

circuits

Internal

circuits

Screw Terminal Switches

Za

Indicator-equipped (Light-ON when Not Operating)

Switches *1

Internal

circuits

NO NC

NC NO

NO NC

NC NO

Za

2-core

4-core

4

--

1

--

2

3

2-core

4-core

4

--

1

--

2

3

(NO) 4

(NC) 1

3 (NO)

2 (NC)

Pin No.

Positioning piece *2

2

NC

1

NC

1

3

NO

4

NO

*1. Light-ON when not operating means the indicator is lit when the actuator is free and is not light when the Switch contacts (NO) close when the actuator rotates or

is pushed down.

*2. The position of the positioning piece is not always the same. If using an L-shaped connector causes problems in application, use a straight connector.

http://www.ia.omron.com/

27

WL/WLM

Dimensions and Operating Characteristics

(Unit: mm)

General-purpose Models

Standard Models

Basic

Rotating Lever........ For all models WL@ indicates a standard-load model and WL01@ indicates a microload model.

60 max.

53 1.5

41.5 1.5

40 ^1.5

13.1

67.2 max.

58.1 1.5

36 ^1.5

Roller lever R38

WLCA2

WL01CA2

Roller lever R50

WLCA2-7

WL01CA2-7

17.5 dia. × 15 *

13.1

17.5 dia. × 7 *

25.4

12.7

25.4

12.7

Four, M3.5

50R

Four, M3.5

38R

M5 (length: 12)

Allen-head bolt

M5 (length: 12)

Allen-head bolt

25.4

68.7

25.4

68.7

14.7

(137)

14.7

(125)

Four, 5.2^+0.2

0

Four, 5.2^+0.2

dia. holes⁰

dia. holes

58.7 ^0.2

Three, M4

(length: 13)

58.7 ^0.2

Three, M4

(lengh:13)

5

21.6

1.2

29.2

35

21.6

Four, M6

Depth: 15 min.

(15.1)

30.2 0.2

40 0.7

Four, M6

Depth: 15 min.

JIS B0202 G½

Effective thread:

4 threads min.

JIS B0202 G½

Effective thread:

4 threads min.

(4.9)

1.2

(15.1)

29.2

35

60 max.

53.2 ^0.8

(4.9)

30.2 0.2

40 0.7

42 max.

53.2 ^0.8

* Stainless steel roller

* Stainless sintered roller

60 max.

53 ^1.5

41.5 ^1.5

40 ^1.5

67 max.

60 1.5

Roller lever R63

WLCA2-8

WL01CA2-8

Adjustable Roller Lever

WLCA12

WL01CA12

17.5 dia. × 7 *

41.5 ^1.5

13.1

17.5 dia. × 7 *

25.4

12.7

13.1

Four, M3.5

25.4

12.7

Adjustable range:

25 to 89

63R

M5 (length: 16)

Allen-head bolt

Four, M3.5

25.4

68.7

Four, 5.2^+0.2

dia. holes⁰

14.7

dia. holes⁰

25.4

68.7

(150)

14.7

M5 (length: 12)

Allen-head bolt

58.7 ^0.2

Three, M4

(length: 13)

58.7 ^0.2

Three, M4

(length: 13)

5

21.6

1.2

29.2

Four, M6

Depth: 15 min.

5

(15.1)

30.2 0.2

40 0.7

(4.9)

21.6

1.2

29.2

35

JIS B0202 G½

Effective thread:

4 threads min.

JIS B0202 G½

Effective thread:

4 threads min.

Four, M6

Depth: 15 min.

(15.1)

30.2 ^0.2

40 0.7

35

(4.9)

42 max.

* Stainless sintered roller

65.2 ^0.8

42 max.

53.2 ^0.8

* Stainless sintered roller

62.5 max.

56.4 3.5

42.8 ^3.5

Adjustable Rod Lever (25 to 140 mm)

WLCL

Fork Lever Lock

WLCA32-41 to 44

WL01CA32-41 to 44

(For details

55 max.

46 ^1.5

9

13.1

Two, 17.5 dia.

(length: 7) *

WL01CL

25.4

12.7

3

0.2 dia.

(length: 160) *

M8 ×12

13.1

25.4

12.7

90 3°

Adjustable range:

25 to 140

see page 42)

R38

Four, M3.5

Allen-head

set screw

34.1

68.7

M5 × 16

Allen-head bolt

M5 × 12

Allen-head

bolt

14.7

25.4

68.7

(125)

14.7

Four, 5.2^+0.2

dia. holes⁰

Four, 5.2^+0.2

dia. holes⁰

58.7 ^0.2

Three, M4

(length: 13)

58.7 ^0.2

Three, M4

(length: 13)

5

21.6

1.2

29.2

35

5

JIS B0202 G½

Effective thread:

4 threads min.

Four, M6

Depth: 15 min.

(15.1)

21.6

1.2

29.2

(4.9)

JIS B0202 G½

Effective thread:

4 threads min.

30.2 0.2

Four, M6

Depth: 15 min.

(15.1)

30.2 0.2

40 0.7

Note: This illustration shows

the external dimensions

of the WLCA32-41.

40 ^0.7

(4.9)

42 max.

* Plastic roller

35

(Models WLCA32-041 to -044 and WL01CA32-

041 to -044 have stainless steel rollers.)

42 max.

* Stainless steel rod

Note: Unless otherwise indicated, a tolerance of 0.4 mm applies to all dimensions.

Model WLCA2 WLCA2-7 WLCA2-8

WLCA12 *1

WLCL *2

Model WLCA32-41 to 44 *1

Operating characteristics

WL01CA2 WL01CA2-7 WL01CA2-8 WL01CA12 *1 WL01CL *2

Operating characteristics

WL01CA32-41 to 44 *1

OF max.

RF min.

PT

OT min.

MD max.

Force necessary to reverse the

direction of the lever: Max.

Movement until the lever reverses

Movement until switch operation: Min.

Movement after switch operation: Max.

11.77 N

Operating force

Release force

Pretravel

Overtravel

MovementDifferential

13.34 N

2.23 N

15° 5°

30°

10.2 N

1.67 N

15° 5°

30°

8.04 N

1.34 N

15° 5°

30°

13.34 N

2.23 N

15° 5°

30°

1.39 N

0.27 N

15° 5°

30°

50° 5°

55°

35°

12°

OF and RF for WLCA12, with a lever length of 89 mm.

WLCA12, WL01CA12

*1. The operating characteristics for WLCA12 and WL01CA12 are measured at the lever length of

38 mm.

*2. The operating characteristics for WLCL and WL01CL are measured at the rod length of 140 mm.

OF

RF

5.68 N

0.95 N

http://www.ia.omron.com/

28

WL/WLM

Basic

Plunger .....................For all models WL@ indicates a standard-load model and WL01@ indicates a microload model.

PT

OP

Top Plunger

WLD

WL01D

Horizontal Plunger

WLSD

WL01SD

46.6 ^0.8

13.1

12.9

13.1

Four, M3.5

9 dia.

12.7

PT

25.4

1R *

Four, M3.5

27.5

OP

19.9

68.7

17.8

1R *1

25 dia. *2

Four, 5.2^+0.2

dia. holes⁰

(96.2)

68.7

58.7 ^0.2

Three, M4

(length: 13)

Three, M4

(length: 13)

5

21.6

1.2

29.2

21.6

1.2

29.2

Four, M6

Depth: 15 min.

JIS B0202 G½

Effective thread:

4 threads min.

Four, M6

Depth: 15 min.

(15.1)

JIS B0202 G½

Effective thread:

4 threads min.

(15.1)

30.2 ^0.2

40 ^0.7

(4.9)

30.2 0.2

35

42 max.

40 ^0.7

35

*1. Stainless steel plunger

*2. Cosmetic nuts

42 max.

* Stainless steel plunger

PT

OP

55.7

Top-roller Plunger

WLD2

Horizontal-roller Plunger

13.1

^0.813.1

12.7

Four, M3.5

17 dia.

(length: 5)*1

12.9

WLSD2

WL01SD2

25.4

17 dia. (length: 5) *

Four, M3.5

WL01D2

PT

27.5

68.7

OP

28

17.8

25 dia. *2

Four, 5.2^+0.2

dia. holes⁰

Three, M4

(96.2)

Four, 5.2^+0.2

dia. holes⁰

58.7 ^0.2

68.7

58.7 ^0.2

(length: 13)

Three, M4

(length: 13)

5

21.6

1.2

29.2

5

JIS B0202 G½

Effective thread:

4 threads min.

Four, M6

Depth: 15 min.

21.6

1.2

29.2

(15.1)

30.2 0.2

(4.9)

Four, M6

Depth: 15 min.

JIS B0202 G½

Effective thread:

4 threads min.

(15.1)

30.2 0.2

40 0.7

(4.9)

35

40 ^0.7

*1. Stainless sintered roller

*2. Cosmetic nuts

35

42 max.

* Stainless sintered roller

Note: The WLSD21 model, which has the roller rotated by 90° is also available.

Top-ball Plunger

WLD3

Horizontal-ball Plunger

WLSD3

WL01SD3

PT

Four, M3.5

OP

46.6 ^0.8

13.1

15.5 dia.

1/2 dia. *

12.9

12.7

25.4

WL01D3

PT

Four, M3.5

27.5

68.7

OP

19.9

68.7

17.8

1/2 dia. *1

25 dia. *2

dia. holes⁰

Three, M4

(length: 13)

Four, 5.2^+0.2

dia. holes⁰

Four, 5.2^+0.2

(96.2)

58.7 ^0.2

Three, M4

(length: 13)

5

21.6

1.2

29.2

21.6

1.2

JIS B0202 G½

Effective thread:

4 threads min.

Four, M6

Depth: 15 min.

(15.1)

30.2 0.2

40 0.7

Four, M6

Depth: 15 min.

JIS B0202 G½

Effective thread:

4 threads min.

(15.1)

30.2 0.2

40 0.7

(4.9)

29.2

(4.9)

35

42 max.

*1. Stainless steel ball

*2. Cosmetic nuts

42 max.

* Stainless steel ball

13.1

Sealed Top-roller Plunger

WLD28

12.9

11.2 dia. (length: 5) *

Four, M3.5

PT

WL01D28

OP

24

Four, 5.2^+0.2

dia. holes⁰

68.7

58.7 ^0.2

Three, M4

(length: 13)

5

21.6

1.2

29.2

Four, M6

Depth: 15 min.

JIS B0202 G½

Effective thread:

(15.1)

(4.9)

30.2 0.2

4 threads min.

35

40 ^0.7

Note: Unless otherwise indicated, a tolerance of 0.4 mm applies to all

dimensions.

42 max.

* Stainless steel roller

Model WLD

WL01D

WLD2

WL01D2

WLD3

WL01D3

WLD28

WL01D28

WLSD2

WL01SD2

WLSD3

WL01SD3

WLSD

WL01SD

Operating characteristics

OF max.

RF min.

PT max.

OT min.

MD max.

Operating force

Release force

26.67 N

8.92 N

1.7 mm

5.6 mm

1 mm

26.67 N

8.92 N

1.7 mm

4 mm

16.67 N

4.41 N

1.7 mm

5.6 mm

1 mm

40.03 N

8.89 N

2.8 mm

5.6 mm

1 mm

40.03 N

8.89 N

2.8 mm

4 mm

40.03 N

8.89 N

2.8 mm

6.4 mm

1 mm

8.92 N

1.7 mm

6.4 mm

1 mm

Pretravel

Overtravel

Movement Differential

1 mm

OP

TTP max.

Operating Position

Total travel Position

34 0.8 mm 44 0.8 mm 44.5 0.8 mm 44 0.8 mm 54.2 0.8 mm 54.1 0.8 mm 40.6 0.8 mm

29.5 mm 39.5 mm 41 mm 39.5 mm

—

http://www.ia.omron.com/

29

WL/WLM

Basic

Flexible Rod............ For all models WL@ indicates a standard-load model and WL01@ indicates a microload model.

Coil Spring

WLNJ

WL01NJ

Coil Spring (Multi-wire)

WLNJ-30

6.5 dia.

PT

*1

PT

4.8 dia.

*2

*1

*2

WL01NJ-30

*3

(107)

140 ^2.5

13.1

(107)

140 ^2.5

32.7 ^0.8

Four, 5.2^+0.2

dia. holes⁰

Four, 5.2^+0.2

dia. holes⁰

68.7

58.7 ^0.2

68.7

58.7 ^0.2

Three, M4

(length: 13)

Three, M4

(length: 13)

5

21.6

1.2

29.2

21.6

1.2

Four, M6

Depth: 15 min.

JIS B0202 G½

Effective thread:

4 threads min.

Four, M6

(15.1)

30.2 0.2

40 ^0.7

(15.1)

30.2 0.2

40 0.7

JIS B0202 G½

Effective thread:

4 threads min.

(4.9)

29.2

Depth: 15 min.

(4.9)

35

42 max.

*1. The coil spring may be operated from any direction except the

axial direction (↓).

*2. Stainless steel coil spring

*1. The coil spring may be operated from any direction except the

axial direction (↓).

*2. Piano wire coil

*3. Optimum operating range of the coil spring is within 1/3 of the

entire length from the top end.

*3. Optimum operating range of the coil spring is within 1/3 of the

entire length from the top end.

Coil Spring (Resin Rod) _PT

WLNJ-2

Steel Wire

WLNJ-S2

WL01NJ-S2

8 dia.

*1

1 dia.

PT

*2

*1

WL01NJ-2

*2

*3

(95.4)

26 dia.

13.1

(161)

193 ^2.5

13.1

140 ^2.5

32 ^0.8

44.6 ^0.8

Four, 5.2^+0.2

dia. holes⁰

Four, 5.2^+0.2

dia. holes⁰

68.7

58.7 ^0.2

Three, M4

(length: 13)

68.7

58.7 ^0.2

Three, M4

(length: 13)

5

21.6

1.2

29.2

Four, M6

Depth: 15 min.

JIS B0202 G½

Effective thread:

4 threads min.

21.6

(15.1)

30.2 0.2

40 0.7

Four, M6

Depth: 15 min.

(4.9)

JIS B0202 G½

Effective thread:

4 threads min.

1.2

(15.1)

30.2 0.2

40 ^0.7

29.2

35

42 max.

(4.9)

35

42 max.

*1. The steel wire may be operated from any direction except the

axial direction (↓).

*2. Stainless steel wire

*3. Optimum operating range of the steel wire is within 1/3 of the

entire length from the top end.

*1. The resin rod may be operated from any direction except the axial

direction (↓).

*2. Polyamide resin rod

*3. Optimum operating range of the resin rod is within 1/3 of the

entire length from the top end.

Note: Unless otherwise indicated, a tolerance of 0.4 mm applies to all dimensions.

Model WLNJ *

WLNJ30 *

WLNJ-2 *

WLNJ-S2 *

WL01NJ-S2 *

Operating characteristics

WL01NJ *

WL01NJ30 * WL01NJ-2 *

Operating force

Pretravel

1.47 N

20 10mm

1.47 N

20 10mm

1.47 N

40 20mm

0.28 N

40 20mm

OF max.

PT

* These values are taken from the top end of the wire or spring.

http://www.ia.omron.com/

30

WL/WLM

Overtravel

General-purpose/High-sensitivity Models ........... For all models WL

@

indicates a standard-load model and WL01

@

indicates a microload model.

9

60 max.

55 max.

46 ^1.5

Roller Lever R38

WLH2

WL01H2

WLG2

Adjustable Rod Lever

WLHL

53 1.5

41.5 1.5

17.5 dia. (length: 7) *

41.5 ^1.5

13.1

3

0.2 dia.

40 1.5

(length: 160) *

13.1

WL01HL

WLGL

25.4

12.7

Adjustable range:

25 to 140

25.4

Four, M3.5

12.7

38R

M5 (length: 12)

Allen-head bolt

M8 (length: 12)

Allen-head

lock screw

WL01G2

WL01GL

25.4

68.7

25.4

68.7

14.7

M5 (length: 12)

Allenhead bolt

14.7

(125)

Four, 5.2^+0.2

dia. holes⁰

Four, 5.2^+0.2

dia. holes⁰

58.7 ^0.2

Three, M4

(length: 13)

58.7 ^0.2

Three, M4

(length: 13)

5

21.6

Four, M6

Depth: 15 min.

JIS B0202 G½

Effective thread:

4 threads min.

21.6

1.2

JIS B0202 G½

Effective thread:

4 threads min.

(15.1)

30.2 0.2

40 0.7

(15.1)

30.2 ^0.2

40 ^0.7

29.2

1.2

Four, M6

Depth: 15 min.

(4.9)

29.2

35

42 max.

53.2 ^0.8

* Stainless sintered roller

Note: 1. WL@G2 is identical to other models except in

the shape of the set position marker plate.

2. The built-in switch for WLH2 is W-10FB3.

3. The built-in switch for WLG2 is W-10FB3-8.

Note: 1. WL@GL is identical to other models except in

the shape of the set position marker plate.

2. The built-in switch for WLHL is W-10FB3.

3. The built-in switch for WLGL is W-10FB3-8.

67 max.

Adjustable Roller Lever

WLH12

Adjustable Rod Lever

WLHAL4

17.5 dia. (length: 7) *

60 ^1.5

41.5 ^1.5

13.1

3.2 dia. *

WL01H12

WLG12

WL01G12

WL01HAL4

25.4

Four, M3.5

12.7

54.5 ^1.5

41.5 1.5

Adjustable range:

25 to 89

8

M5 (length: 16)

Allen-head

bolt

Adjustable range:

350 to 380

13.1

12.8

25.4

68.7

25.4

12.7

Four, 5.2^+0.2

dia. holes⁰

14.7

M5 (length: 12)

Allen-head

bolt

65

58.7 ^0.2

25.4

68.7

Three, M4

(length: 13)

14.7

Four, 5.2^+0.2

dia. holes⁰

5

21.6

1.2

Four, M6

Depth: 15 min.

JIS B0202 G½

Effective thread:

4 threads min.

58.7 ^0.2

Three, M4

(length: 13)

(15.1)

30.2 ^0.2

40 ^0.7

29.2

(4.9)

35

42 max.

65.2 ^0.8

5

21.6

1.2

29.2

* Stainless sintered roller

Four, M6

Depth: 15 mi

JIS B0202 G½

Effective thread:

4 threads min.

(15.1)

30.2 0.2

40 0.7

Note: 1. WL@G12 is identical to other models except in

the shape of the set position marker plate.

(4.9)

35

* Stainless steel rod

2. The built-in switch for WLH12 is W-10FB3.

3. The built-in switch for WLG12 is W-10FB3-8.

42 max.

7.7

Note: 1. One-side operation is not possible with the general-purpose and high-

Rod Spring Lever

WLHAL5

WL01HAL5

sensitivity models.

2. Unless otherwise indicated, a tolerance of 0.4 mm applies to all

dimensions.

2.3 dia. *

54 ^1.5

41.5 1.5

13.1

428.5

2

25.4

12.7

65

M5 (length: 16)

Allen-head

bolt

11

14.7

25.4

68.7

Four, 5.2^+0.2

dia. holes⁰

58.7 ^0.2

OF and RF for WLH12 and WL01H12, with a lever length of

89 mm.

Three, M4

(length: 13)

5

WLH12, WLA01H12

4.18 N

WLG12, WL01G12

4.18 N

21.6

JIS B0202 G½

Effective thread:

4 threads min.

(15.1)

Four, M6

Depth: 15 min.

1.2

29.2

35

(4.9)

OF

RF

30.2 0.2

40 0.7

0.42 N

* Piano wire

42 max.

Model WLH2

WLG2

WL01G2

WLH12 *1

WLG12 *1

WLHL *1

WLGL *

2

WLHAL4 *

3

WLHAL5

WL01HAL5

Operating characteristics

WL01H2

WL01H12 *1 WL01G12 *1 WL01HL *1 WL01GL *

2

WL01HAL4 *

3

Operating force

Release force

Pretravel

OF max.

9.81 N

0.98 N

15° 5°

55°

9.81 N

0.98 N

15° 5°

55°

9.81 N

2.84 N

0.25 N

15° 5°

55°

2.84 N

0.98 N

0.15 N

15° 5°

55°

0.90 N

0.09 N

15° 5°

55°

RF min.

PT

OT min.

0.98 N

0.25 N

+2°

10°

–1°

Overtravel

65°

7°

65°

7°

65°

7°

Movement Differential MD max.

12°

Note: With WLHAL4, WL01HAL4, WLHAL5, and WL01HAL5, the actuator's tare is large, so depending on the installation direction, they may not be properly reset.

Always install so that the actuator is facing downwards.

*1. The operating characteristics of WLH12, WL01HL12, WLG12, and WL01G12 are measured at the lever length of 38 mm.

*2. The operating characteristics of WLHL, WL01HL, WLGL, and WL01GL are measured at the rod length of 140 mm.

*3. The operating characteristics of WLHAL4, and WL01HAL4 are measured at the rod length of 380 mm.

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31

WL/WLM

Overtravel

Side-installation Models ... For all models WL@ indicates a standard-load model and WL01@ indicates a microload model.

60 max.

53 ^1.5

60 max.

53 ^1.5

Roller Lever

WLCA2-2N

Roller Lever

WLCA2-2

41.5 ^1.5

41.5 1.5

WL01CA2-2N

WL01CA2-2

40 ^1.5

22

40 ^1.5

13.1

17.5 dia. (length: 7) *

Four, M3.5

17.5 dia. (length: 7) *

Four, M3.5

1113.1

25.4

12.7

11.5

38R

M5 (length: 12)

Allen-head bolt

Two, M5

(length: 18)

25.4

68.7

16.1

(126.5)

(10.8)

M5 (length: 12)

Allen-head bolt

16.1

(126.5)

Four, 5.2^+0.2

dia. holes⁰

Four, 5.2^+0.2

dia. holes⁰

101.8

64 ^0.2

Two, 5.2 ^+0.2

58.7 ^0.2

dia. holes⁰

Three, M4

58.7 ^0.2

Three, M4

(length: 13)

5

21.6

1.2

29.2

0.2

JIS B0202 G½

Effective thread:

4 threads min.

Four, M6

Depth: 15 min.

(15.1)

30.2 0.2

40 0.7

23

5

Four, M6

JIS B0202 G½

Effective thread:

4 threads min.

(4.9)

(15.1)

30.2 0.2

40 ^0.7

21.6

Depth: 15 min.

(4.9)

35

33 ^1.2

35

* Stainless sintered roller

42 max.

* Stainless sintered roller

53.2 0.8

42 max.

67 max.

60 ^1.5

Adjustable Roller Lever

WLCA12-2N

WL01CA12-2N

Adjustable Roller Lever

WLCA12-2

WL01CA12-2

67 max.

60 ^1.5

17.5 dia. (length: 7) *

41.5 1.5

17.5 dia. (length: 7) *

Four, M3.5

41.5 ^1.5

13.1

22

11 13.1

25.4

12.7

Four, M3.5

Two, M5

(length: 18)

11.5

Adjustable range:

25 to 89

Adjustable range:

25 to 89

M5 (length: 16)

Allen-head bolt

M5 (length: 16)

Allen-head bolt

25.4

68.7

(10.8)

101.8

Four, 5.2^+0.2

dia. holes⁰

16.1

Four, 5.2^+0.2

dia. holes⁰

64 0.2

58.7 ^0.2

Two, 5.2 ^+0.2

dia. holes⁰

Three, M4

(length: 13)

5

Three, M4

(length: 13)

5

0.2

21.6

1.2

29.2

23

5

Four, M6

Depth: 15 min.

JIS B0202 G½

Effective thread:

4 threads min.

Four, M6

Depth: 15 min.

(15.1)

30.2 0.2

40 0.7

21.6

(15.1)

30.2 ^0.2

JIS B0202 G½

Effective thread:

4 threads min.

(4.9)

33 ^1.2

35

40 ^0.7

42 max.

* Stainless sintered roller

42 max.

65.2 ^0.8

55 max.

46 ^1.5

55 max.

9

3

0.2 dia.

Adjustable Rod Lever

WLCL-2N

Adjustable Rod Lever

WLCL-2

WL01CL-2

9

(length: 160) *

46 ^1.5

22

3

0.2 dia.

M8 (length: 12)

Allen-head

41.5 1.5

1113.1

(length: 160) *

WL01CL-2N

13.1

lock screw

Adjustable range:

25 to 140

11.5

25.4

12.7

Adjustable range:

25 to 140

M8 (length: 12)

Four, M3.5

Allen-head

lock screw

Two, M5 (length: 18)

M5 (length: 12)

Allen-head bolt

M5 (length: 12)

Allen-head bolt

(10.8)

25.4

68.7

16.1

Four, 5.2^+0.2

dia. holes⁰

Three, M4

101.8

64 ^0.2

Four, 5.2^+0.2

dia. holes⁰

Two, 5.2 ^+0.2

58.7 ^0.2

Three, M4

(length: 13)

5

0.2

5

23

5

Four, M6

JIS B0202 G½

Effective thread:

4 threads min.

21.6

(15.1)

30.2 0.2

40 0.7

21.6

JIS B0202 G½

Effective thread:

4 threads min.

(4.9)

Depth: 15 min.

Four, M6

Depth: 15 min.

1.2

(15.1)

30.2 0.2

40 0.7

(4.9)

29.2

33 1.2

35

42 max.

* Stainless steel rod

42 max.

* Stainless steel rod

Note: 1. With the side-installation models, 90° operation on one side is possible by simply changing the direction of the cam.

2. Unless otherwise indicated, a tolerance of 0.4 mm applies to all dimensions.

OF and RF for WLCA12-2N

and WL01CA12-2N, with a

lever length of 89 mm.

Model WLCA2-2N

WLCA12-2N *1

WLCL-2N *2

WLCA2-2

WLCA12-2 *1

WLCL-2 *2

Operating characteristics WL01CA2-2N WL01CA12-2N *1 WL01CL-2N *2 WL01CA2-2

WL01CA12-2 *1 WL01CL-2 *2

Operating force

Release force

Pretravel

OF max.

RF min.

PT

9.61 N

1.18 N

20° max.

70°

9.61 N

1.18 N

20° max.

70°

2.84 N

0.25 N

20° max.

70°

8.83 N

0.49 N

25° 5°

60°

8.83 N

0.49 N

25° 5°

60°

2.55 N

0.1 N

25° 5°

60°

WLCA12-2N,

WLA01CA12-2N

Overtravel

OT min.

OF

RF

4.10 N

0.50 N

Movement Differential MD max.

10°

16°

*1. The operating characteristics of WLCA12-2N and WL01CA12-2N are measured at the lever length of 38 mm.

*2. The operating characteristics of WLCL-2N and WL01CL-2N are measured at the rod length of 140 mm.

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32

WL/WLM

High-precision Models

WL@ are Standard Models and WL01@ are Microload Models.

60 max.

Roller Lever

WLGCA2

WL01GCA2

53 ^1.5

41.5 ^1.5

40 ^1.5

13.1

17.5 dia. (length: 7) *

Four, M3.5

25.4

12.7

38R

Model WLGCA2

M5 (length: 12)

Allen-head bolt

Operating characteristics

WL01GCA2

25.4

68.7

14.7

Operating force

Release force

Pretravel

OF max.

13.34 N

1.47 N

(125)

RF min.

PT

OT min.

Four, 5.2^+0.2

dia. holes⁰

5°^+2°

0°

58.7 0.2

Overtravel

40°

3°

Three, M4

(length: 13)

Movement Differential MD max.

5

21.6

1.2

29.2

JIS B0202 G½

Effective thread:

4 threads min.

Four, M6

Depth: 15 min.

(15.1)

30.2 ^0.2

40 ^0.7

(4.9)

35

42 max.

53.2 ^0.8

* Stainless sintered roller

Note: Unless otherwise indicated, a tolerance of 0.4 mm applies to all dimensions.

Sensor I/O Connector Switches

Direct-wired Connector/Pre-wired Connector Models

Refer to the D4CC for applicable Cables.

Roller Lever Plungers........WL@ are Standard Models and WL01@ are Microload Models.

Standard Models (WLCA2), High-precision Models (WLGCA2),

Overtravel General-purpose Models (WLH2), Overtravel High-sensitivity Models (WLG2)

Connector Models

Pre-wired Connector Models

60 max.

53

41.¹5^{.5 1.5}

60 max.

53 ^1.5

40 ^1.5

17.5 dia. (length: 7) *

13.1

41.5 1.5

40 1.5

25.4

12.7

13.1

17.5 dia. (length: 7) *

Four, M3.5

38R

25.4

12.7

25.4

68.7

M5 (length: 12)

Allen-head bolt

38R

14.7

25.4

68.7

Four, 5.2^+0.2

14.7

dia. holes⁰

M5 (length: 12)

Allen-head bolt

58.7 ^0.2

Three, M4

(length: 13)

Four, 5.2^+0.2

dia. holes⁰

58.7 ^0.2

5

Three, M4

(length: 13)

(20)

Four, M6

Depth: 15 min.

5

12.5

Four, M6

Depth: 15 min.

SC-1M

21.6

M12 × 1

300 ⁵⁰

1.2

(15.1)

30.2 0.2

40 0.7

(4.9)

29.2

JIS B0202 G½

Effective thread:

4 threads min.

35

42 max.

53.2 0.8

6 dia.

* Stainless sintered roller

21.6

1.2

XS2H-D421

(15.1)

(4.9)

29.2

30.2 0.2

40 0.7

35

42 max.

53.2 0.8

M12 × 1

* Stainless sintered roller

Note: 1. Only the dimension of the set position marker plate is different for WLG2 Models.

2. Unless otherwise indicated, a tolerance of 0.4 mm applies to all dimensions.

3. The models with operation indicators are shown in the above diagrams.

Actuator

Operating characteristics

Standard roller lever

actuator

High-precision roller

lever actuator

Overdrive general-

purpose actuator

Overdrive high-sensitivity

actuator

Operating force

Release force

Pretravel

OF max.

RF min.

PT

13.34 N

2.23 N

15° 5°

30°

13.34 N

1.47 N

9.81 N

0.98 N

15° 5°

55°

9.81 N

0.98 N

5°^+2°

10°^+2°

0°

Overtravel

OT min.

40°

3°

65°

7°

Movement Differential MD max.

12°

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33

WL/WLM

Top-roller Plunger (WLD2)

Direct-wired Connector Models

Pre-wired Connector Models

13.1

12.7

PT

17.5 dia. (length: 5) *

13.1

Four, M3.5 (length: 10)

OP

PT

28

12.9

28

17.5 dia. (length: 5) *

Four, 5.2^+0.2

dia. holes⁰

Four, M3.5 (length: 10)

OP

68.7

58.7 ^0.2

Three, M4

(length: 13)

Four, 5.2^+0.2

dia. holes⁰

5

68.7

58.7 ^0.2

(20)

Four, M6

Three, M4

Depth: 15 min.

(length: 13)

5

12.5

SC-1M

Four, M6

Depth: 15 min.

300 50

21.6

1.2

29.2

M12 × 1

JIS B0202 G½

(15.1)

30.2 ^0.2

40 0.7

(4.9)

Effective thread:

4 threads min.

6 dia.

35

42 max.

21.6

1.2

* Stainless sintered roller

XS2H-D421

(15.1)

30.2 0.2

40 ^0.7

(4.9)

29.2

35

M12 × 1

42 max.

* Stainless sintered roller

Note: 1. Unless otherwise indicated, a tolerance of 0.4 mm applies to all dimensions.

2. The following diagrams are for a indicator-equipped models.

Actuator

Top-roller plunger

Operating characteristics

Operating force

Release force

Pretravel

OF max.

RF min.

PT max.

OT min.

26.67 N

8.92 N

1.7 mm

5.6 mm

1 mm

Overtravel

Movement Differential MD max.

Operating Position

Total travel Position

OP

TTP max.

44 0.8mm

39.5 mm

Indicator-equipped Models

60 max.

53 1.5

Roller Lever

WLCA2-LE/LD

WL01CA2-LE/LD

41.5 1.5

40 1.5

17.5 dia. (length: 7) *

13.1

25.4

12.7

Four, M3.5

38R

25.4

68.7

M5 (length: 12)

14.7

Allen-head bolt

(125)

Four, 5.2^+0.2

dia. holes⁰

58.7 ^0.2

Three, M4

(length: 13)

5

21.6

1.2

29.2

Four, M6

Depth: 15 min.

(15.1)

30.2 0.2

40 0.7

JIS B0202 G½

Effective thread:

4 threads min.

(4.9)

35

42 max.

* Stainless sintered roller

Note: Unless otherwise indicated, a tolerance of 0.4 mm applies to all dimensions.

Actuator WLCA2-LE/LD

Operating characteristics

WL01CA2-LE/LD

Operating force

Release force

Pretravel

OF max.

13.34 N

2.23 N

15° 5°

30°

RF min.

PT

Overtravel

OT min.

Movement Differential MD max.

12°

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34

WL/WLM

Spatter-prevention Models

Roller Lever (Screw Terminals)

WLCA2-@S/WL01@-@S

WLH2-@S/WLG2-@S

WLGCA2-@S

Roller Lever (Pre-wired connectors)

WLCA2-@S-M1J*/WL01@-@S-M1J*

WLH2-@S-M1J*/WLG2-@S-M1J*

WLGCA2-@S-M1J*

* External dimensions are the same even for different core

wires.

60 max.

53 1.5

41.5 1.5

40 1.5

60 max.

54 ^1.5

17.5 dia. (length: 7) *

Four, M3.5

13.1

Four, M3.5

head clamping screws

25.4

12.7

25.4

12.7

head clamping screws

Two, M5 Allen-head nut

and arm set screw

38R

Two, M5 Allen-head nut

and arm set screw

38R

25.4

68.7

Four, 5.2^+0.2

dia. holes⁰

25.4

68.7

Four, 5.2^+0.2

dia. holes⁰

14.7

(125)

Fluororesin cap

Three, M4

(length: 13)

58.7 ^0.2

Lamp cover

5

Three, M4

(length: 13)

(20)

Four, M6

Depth: 15 min.

21.6

1.2

29.2

Four, M6

Depth: 15 min.

(15.1)

30.2 ^0.2

40 0.7

JIS B0202 G½

Effective thread:

4 threads min.

(4.9)

SC-1M

35

+100

300

42 max.

−50

* Stainless steel roller

6 dia.

21.6

1.2

XS2H-D421

(15.1)

(4.9)

29.2

30.2 0.2

40 0.7

35

42 max.

53.2 0.8

* Stainless steel roller

Sealed Top-roller Plunger (Screw Terminals)

Sealed Top-roller Plunger (Pre-wired connectors)

WLD28-@S

WLD28-@S-M1J*

* External dimensions are the same even for different core wires.

13.1

11.2 dia. (length: 5) *

PT

Rubber cap

12.9

(Fluorosilicone)

13.1

Four, M3.5 (length: 10)

Mounting bushing

Tightening screws

and spring washers

12.9

PT

11.2 dia. (length: 5) *

OP

Four, M3.5

OP

Four, 5.2^+0.2

dia. holes⁰

Three, M4

24

Four, 5.2^+0.2

dia. holes⁰

68.7

58.7 ^0.2

(length: 13)

Lamp cover

5

68.7

58.7 ^0.2

(20)

Lamp cover

Four, M6

Depth: 15 min.

5

Three, M4

(length: 13)

SC-1M

21.6

1.2

29.2

Four, M6

Depth: 15 min.

(15.1)

30.2 0.2

40 0.7

+100

300

JIS B0202 G½

Effective thread:

4 threads min.

(4.9)

−50

35

42 max.

6 dia.

* Stainless steel roller

21.6

1.2

29.2

35

XS2H-D421

(15.1)

30.2 0.2

40 0.7

(4.9)

42 max.

* Stainless steel roller

Note: Unless otherwise indicated, a tolerance of 0.4 mm applies to all dimensions.

Actuator

Operating characteristics

Roller Lever

Overtravel models

General-purpose High-sensitivity

Sealed Top-roller

Plunger

Basic

High-precision

Operating force

Release force

Pretravel

OF max.

RF min.

PT

13.34 N

2.23 N

15° 5°

30°

9.81 N

0.98 N

15° 5°

55°

9.81 N

13.34 N

1.47 N

16.67 N

4.41 N

1.7 mm max.

5.6 mm

0.98 N

+2°

10°

5°^+2°

–1°

0°

Overtravel

OT min.

65°

7°

40°

3°

Movement Differential MD max.

12°

1 mm

Operating Position

Total travel Position

OP

TTP max.

—

44 0.8 mm

39.5 mm

http://www.ia.omron.com/

35

WL/WLM

Long-life Models

Rotating Lever Models

Roller Lever (Screw Terminals)

WLM@-LD

Roller Lever (Direct-wired Connectors)

WLM@-LD@

60 max.

53 ^1.5

53 1.5

41.5 1.5

40 1.5

41.5 ^1.5

40 1.5

13.1

17.5 dia. (length: 7) *

Four, M3.5

(length: 26.5)

25.4

12.7

25.4

12.7

Four, M3.5

(length: 26.5)

M5 (length: 12)

Allen-head bolt

38R

M5 (length: 12)

Allen-head bolt

Four, 5.2^+0.2

25.4

68.7

25.4

68.7

Four, 5.2^+0.2

dia. holes⁰

14.7

Rubber cap

58.7 ^0.2

Three, M4

(length: 13)

Three, M4

(length: 13)

Lamp cover

5

12.5

Lamp cover

5

21.6

1.2

29.2

Four, M6

Depth: 15 min.

Four, M6

Depth: 15 min.

SC-2FD

(15.1)

30.2 0.2

40 0.7

21.6

1.2

(4.9)

(15.1)

30.2 0.2

40 0.7

JIS B0202 G½

Effective thread:

4 threads min.

35

42 max.

53.2 0.8

(4.9)

29.2

M12 × 1

35

42 max.

53.2 0.8

* Stainless steel roller

JIS B0202 G½

Effective thread:

4 threads min.

* Stainless steel roller

Roller Lever (Pre-wired Connectors)

WLM@-LD@

60 max.

53 1.5

41.5 ^1.5

40 ^1.5

17.5 dia. (length: 7) *

13.1

Four, M3.5

(length: 26.5)

25.4

12.7

M5 (length: 12)

38R

Allen-head bolt

Four, 5.2^+0.2

25.4

68.7

dia. holes⁰

14.7

Rubber cap

Three, M4

58.7 ^0.2

(length: 13)

Lamp cover

(20)

5

Four, M6

Depth: 15 min.

XS2H-D421

300 50

44.7

6 dia.

21.6

1.2

(15.1)

(4.9)

29.2

30.2 0.2

40 0.7

35

42 max.

* Stainless steel roller

53.2 0.8

Note: Unless otherwise indicated, a tolerance of 0.4 mm applies to all

dimensions.

Model

WLMH2-LD

General-purpose

overtravel models

@

WLMG2-LD@

High-sensitivityovertravel

models

WLMCA2-LD@

Basic models

WLMGCA2-LD@

High-precision models

Operating characteristics

Operating force

Release force

Pretravel

OF max.

9.81 N

0.98 N

15° 5°

30°

9.81 N

0.98 N

15° 5°

55°

9.81 N

13.34 N

1.47 N

RF min.

PT

0.98 N

+2°

10°

5°^+2°

–1°

0°

Overtravel

OT min.

65°

7°

40°

3°

Movement Differential MD max.

12°

http://www.ia.omron.com/

36

WL/WLM

Actuators (Levers Only)

Lever: Only rotating lever models are illustrated.

WL-1A100

WL-1A115

WL-1A400

WL-1A118

Standard Lever

Resin Roller

Bearing Roller

Nylon Roller:

Roller Width: 30 mm

17.5 dia. (length: 30)

17.9

12.6

17.9

12.6

16.9

12.1

40.2 ^0.8

17.5 dia. (length: 7)

stainless sintered alloy roller

17 dia. (length: 6)

bearing roller

17.5 dia. (length: 7)

resin roller

Nylon roller

23.6

7.3-dia.

mounting

holes

7.3-dia.

mounting

holes

R38

mounting

54.8

38 54.8

holes

38 54.8

7.3-dia.

mounting

holes

M5

Allen-head bolt

M5

Allen-head bolt

M5

16

11.4

Allen-head bolt

11.4

WL-1A105

WL-1A103S

WL-1A200

WL-1A300

Double Nuts

Spatter Prevention

Lever Length: 50

Roller Width: 15

Lever Length: 63

17.9

12.6

17.9

12.6

17.9

12.6

17.5 dia. (length: 7)

stainless sintered alloy roller

17.5 dia. (length: 7)

stainless steel roller

17.5 dia. (length: 7)

stainless sintered alloy roller

17.5 dia. (length: 15)

stainless steel roller

25.7

16.6

7.3-dia.

mounting

38 0.2 54.8

holes

38 54.8

holes

7.3-dia.

mounting

holes

7.3-dia.

mounting

holes

63 ^0.379.8

50 66.8

M5

Two, M5 Allen-

head nut and

arm set screw

16

Allen-head bolt

11.4

M5

16

Allen-head bolt

16

11.4

Allen-head bolt

11.4

WL-2A100

WL-2A111

WL-2A107

WL-2A108

Resin Roller

Double Nuts

Resin Roller

24.9 0.8

19.7 ^0.8

17.5 dia. (length: 7)

stainless sintered

alloy roller

24.9 0.8

19.7 0.8

24.9 0.8

19.7 ^0.8

17.5 dia. (length: 7)

resin roller

Adjustable lever:

24.9 0.8

19.7 ^0.8

M5

Allen-head

bolt

17.5 dia. (length: 7)

stainless sintered alloy roller

M5

Allen-head

bolt

17.5 dia. (length: 7)

resin roller

Adjustable lever:

stainless steel

Adjustable lever:

stainless steel

Adjustable lever:

stainless steel

23

Adjustable

range:

25 to 140

Adjustable

range:

25 to 89

23

Adjustable

range:

25 to 89

Adjustable

range:

28 to 88

105.75

7.3-dia.

mounting

holes

7.3-dia.

mounting

holes

155.75

7.3-dia.

mounting

holes

7.3-dia.

mounting

holes

M5

Allen-head

bolt

M5

Allen-head

bolt

12

16

Two, M5 Allen-head nut

and arm set screw

12

16

12

16

6.2

(15.8)

WL-2A122

WL-2A106

WL-2A130

WL-2A104

24.9 0.8

17.5 dia. (length: 7)

stainless sintered

alloy roller

24.7 0.8

19.5 0.8

24.9 0.8

19.7 0.8

24.9 0.8

19.7 0.8

9.1

17.5 dia. (length: 7)

stainless sintered

alloy roller

M5

Allen-head

bolt

50 dia. (length: 6)

Nylon roller

17.5 dia. (length: 7)

stainless sintered

alloy roller

19.7 0.8

Adjustable lever:

stainless steel

3

Adjustable lever:

stainless steel

23

(21.8)

(10)

23

Adjustable

range:

25 to 140

Adjustable

range:

25 to 89

89.5R

(10)

Adjustable

from 42 to 89

7.3-dia.

mounting

holes

105.75

Three, 5.3^+0.2

(112)

0

155.75

dia. holes

7.3-dia.

mounting

holes

7.3^+0.1-dia.

0

mounting holes

7.3-dia.

mounting

holes

M5

Allen-head

bolt

Allen-head

bolt

Two, M5

(length: 16)

Allen-head bolt

15.9

20

16

20

* Can be installed

on the rear side.

22.1

23

12

16

6.2

(15.8)

Note: Unless otherwise indicated, a tolerance of 0.4 mm applies to all dimensions.

http://www.ia.omron.com/

37

WL/WLM

Lever: Only rotating lever models are illustrated.

WL-2A110

WL-2A105

WL-1A106

WL-1A110

34.2

34.5

24.4

24.2

50 dia. (length: 15)

Nylon roller

49 dia. rubber roller

Material: EPDM

50 dia. (length: 6)

Nylon roller

20.1 0.8

6

35 dia. (length: 6)

Nylon roller

20.1 ^0.8

38R

23

Adjustable

from 41 to

89

38R

Adjustable

from 41 to

78.5

122

M5

7.3-dia.

mounting

holes

7.3^+0.1-dia.

Allen-head

bolt

0

16

mounting holes

11.5

M5

Allen-head

bolt

M5

Allen-head

bolt

7.3-dia.

mounting

holes

7.3-dia.

mounting

holes

16

WL-4A100

WL-4A201

WL-3A100

WL-3A106

Double Nut

3.2-dia.

stainless

steel rod

9

3.2-dia.

stainless

steel rod

2-dia. stainless

steel for spring

3-dia. stainless

steel rod

Adjustable

from 350

to 380

7.3-dia. mounting

holes

Adjustable

from 350

to 380

7.3-dia.

13

Adjustable

from

25 to 140

8

Adjustable

from 270 to

290

M5

Allen-head

bolt

mounting

holes

400

2

8

M5

Allen-head

bolt

400

2

160

19

Actuator's

center of

rotation

65

2

11

7.5

65

2

11

7.5

6

11

7.3-dia.

mounting

holes

M5

Allen-head

bolt

13.4

12.8

7.3-dia.

mounting

holes

Two, M5 Allen-

head nut and

arm set screw

11

13.4

25.5 max.

12.8

25.5 max.

WL-3A108

WL-3A200

WL-3A203

WL-4A112

3.2-dia.

stainless

steel rod

8 dia.

2.3-dia.

operation rod

9

Cap

4-dia. stainless

steel rod

50

7.3-dia.

mounting holes

Adjustable

from 650

to 660

417.5

450

2

8

0.4

M5

Allen-head

bolt

Adjustable

up to 141

Adhesive

432.5

470

2

680

4

12.5 dia. max.

11

4

160

2.3-dia.

operation

rod

12.5

dia.

max.

19

(95)

65

2

11

7.5

(95)

6

7.5

6

11

7.5

7.3-dia.

mounting

holes

7.3-dia.

mounting

holes

M5

Allen-head

6

M5

Allen-head

bolt

13

13.4

12.8

7.5

11

7.3-dia.

mounting

holes

bolt

M5

Allen-head

bolt

25.5 max.

24.6 max.

13

24.6 max.

WL-2A129

WL-5A101

WL-5A103

WL-5A105

15.8

3

Marking

8R

Two, 17.5 dia. (length: 7)

stainless sintered alloy rollers

Two, 17.5 dia. (length: 7)

stainless sintered alloy rollers

Two, 17.5 dia. (length: 7)

stainless sintered alloy rollers

6.7

17.7

12.3

17.7

12.3

6.7

(18.5)

12.3

1.3

90°

Three, 5.3^+0.2

90°

0

90°

dia. holes

84

95.3

7.3^+0.1dia.

0

38R

54.8

38R

54.8

38R

54.8

(108)

7.3^+0.1dia.

mou⁰nting

holes

10

11.3

M5 (length: 16)

Allen-head bolt

M5 (length: 16)

Allen-head bolt

M5 (length: 16)

Allen-head bolt

11

15.9

20

Two,M5

(length: 16)

Allen-head bolts

22.1

WL-5A100 has a plastic roller

WL-5A102 has a plastic roller

WL-5A104 has a plastic roller

Note: 1. Unless otherwise indicated, a tolerance of 0.4 mm applies to all dimensions.

2. When using the adjustable roller (rod) lever, make sure that the lever is facing downwards. Use caution, as telegraphing (the Switch turns ON and OFF

repeatedly due to inertia) may occur.

http://www.ia.omron.com/

38

WL/WLM

Safety Precautions

For details, be sure to read Safety Precautions for All Limit Switches.

Precautions for Safe Use

Precautions for Correct Use

• When a rod or wired-type actuator is used, do not touch the top end

of the actuator. Doing so may result in injury.

(Applicable models)

WLHAL5 and WL01HAL5 Rod Spring Levers and WLNJ-S2 and

WL01NJ-S2 Steel-wire Actuators.

• When wiring terminal screws, use M4 round crimp terminals and

tighten screws to the recommended torque. Wiring with bare wires,

or incorrect crimp terminals, or not tightening screws to the

recommended torque can lead to short-circuits, leakage current,

and fire.

• A short-circuit may cause damage to the Switch, so insert a circuit

breaker fuse, of 1.5 to 2 times the rated current, in series with the

Switch.

• In order to meet EN approval ratings, use a 10-A fuse that

corresponds to IEC60269, either a gI or gG for general-purpose

types and spatter-prevention models only.

• When performing internal wiring there is a chance of short-circuit,

leakage current, or fire, so be sure to protect the inside of the

Switch from splashes of oil or water, corrosive gases, and cutting

powder.

• Using an inappropriate connector or assembling Switches

incorrectly (assembly, tightening torque) can result in malfunction,

leakage current, or fire, so be sure to read the instruction manual

thoroughly beforehand.

• Even when the connector is assembled and set correctly, the end

of the cable and the inside of the Switch may come in contact. This

can lead to malfunction, leakage current, or fire, so be sure to

protect the end of the cable from splashes of oil or water and

corrosive gases.

Operating Environment

• Seal material may deteriorate if a Switch is used outdoor or where

subject to special cutting oils, solvents, or chemicals. Always

appraise performance under actual application conditions and set

suitable maintenance and replacement periods.

• Install Switches where they will not be directly subject to cutting

chips, dust, or dirt. The Actuator and Switch must also be protected

from the accumulation of cutting chips or sludge.

Not Suitable

Suitable

• Constantly subjecting a Switch to vibration or shock can result in

wear, which can lead to contact interference with contacts,

operation failure, reduced durability, and other problems.

Excessive vibration or shock can lead to false contact operation or

damage. Install Switches in locations not subject to shock and

vibration and in orientations that will not produce resonance.

• The Switches have physical contacts. Using them in environments

containing silicon gas will result in the formation of silicon oxide

(SiO²) due to arc energy. If silicon oxide accumulates on the

contacts, contact interference can occur. If silicon oil, silicon filling

agents, silicon cables, or other silicon products are present near the

Switch, suppress arcing with contact protective circuits (surge

killers) or remove the source of silicon gas.

http://www.ia.omron.com/

39

WL/WLM

Built-in Switch

Rotating Lever Set Position (General-purpose or Spatter-

prevention Switches Only)

Do not remove or replace the built-in switch. If the position of the built-

in switch moves, it can cause reduced performance, and if the

insulation sheet moves (separator), the insulation may become

ineffective.

All rotating lever models, except the fork lever lock models, have a set

position marker plate. (See page 23.) After operation, set the indicator

needle on the marker plate so that is in the convex section of the

bearing.

Tightening Torque

• If screws are too loose they can lead to an early malfunction of the

Switch, so ensure that all screws are tightened using the correct

torque.

• In particular, when changing the direction of the Head, make sure

that all screws are tightened again to the correct torque. Do not

allow foreign objects to fall into the Switch.

Operation Set Position (Long-life Switches Only)

For all Long-life Switching, there is a set position marker slit on the

rubber cap of the head. After operation, set the slit on the rubber cap

so that the fluorescent color on the shaft section can be seen.

Terminal Plate

By using a short circuit plate, as shown in the following diagram, the

Switch can be fabricated into a single-polarity double-break switch.

When ordering, specify WL Terminal Plate (product code: WL-

9662F).

Appropriate

tightening

torque

No.

Type

1.

6.

Head mounting

screw

3.

1.

2.

0.78 to 0.88 N·m

1.18 to 1.37 N·m

9

2.5^+0.2

7.1

0

Cover mounting

screw

Allen-head bolt

3. (for securing the

lever)

4.

2.

4.90 to 5.88 N·m

3R

COM

9

0.2

23 0.4

16 0.15

4. Terminal screw

5. Connector

0.59 to 0.78 N·m

1.77 to 2.16 N·m

7

2R

5.

3.5

2.1R

Installing the Switch

4.2^+0.1

t = 0.6 Brass plate

0

To install the Switch, make a mounting panel, as shown in the

following diagram, and tighten screws using the correct torque.

General-purpose Models,

Side installation for 90°

Spatter-prevention Models,

Operation Models

and Long-life Models

Four, 5.2^+0.2

Two, 5.2 ^+0.2

0

dia. mounting holes

or M5 taps

dia. mounting holes

64 ^0.15

58.7 ^0.15

23 0.15

30.2 0.15

Connectors

Either the easy-to-use Allen-head nut or the SC Connector can be

used as connectors. To ensure high-sealing properties, use the SC

Connector. Consult your OMRON representative for details.

Wiring

• Use 1.25-mm lead wires and M4-insulation covered crimp terminals

for wiring.

Crimp Terminal External

Dimensions

Wiring Method

Switch Box Section

L

Ground terminal

F

l

D dia.

B

dz dia.: 4.3

D dia. : 4.5

dz dia.

B

L

F

l

: 8.5

: 21.0

: 7.8

NO terminal

NC terminal

: 9.0 (mm)

• The ground terminal is only installed on models with ground

terminals.

http://www.ia.omron.com/

40

WL/WLM

Using the Switches

Item

Applicable models and Actuators

Details

Changing the Installation Position

of the Actuator

By loosening the Allen-head bolt on the

actuator lever, the position of the actua-

tor can be set anywhere within the 360

With Indicator-equipped Switches, the

Roller Levers:

WLCA2, WL01CA2, WLCA2-2,

WL01CA2-2, WLH2,WL01H2, WLG2,

WL01G2, WLMCA2@, WLMH2@,

WLMG2@, WLMGCA2@

°.

Loosen the M5 × 12 bolt, set

the actuator's position and then

tighten the bolt again.

Adjustable Roller Levers:

WLCA12, WL01CA12, WLCA12-2,

WL01CA12-2, WLH12, WL01H12,

WLG12, WL01G12,

Adjustable Rod Levers:

WLCL, WL01CL, WLCL-2, WL01CL-2,

WLHL, WL01HL, WLGL, WL01GL

actuator lever comes in contact with the

top of the indicator cover, so use caution

when rotating and setting the lever.

When the lever only moves forwards and

backwards, it will not contact the lamp

cover (except for long-life models).

Roller Levers:

Changing the Orientation of the Head

By removing the screws in the four cor-

ners of the Head, the Head can be set

in any of the four directions. Be sure to

change the plunger for internal opera-

tions at the same time. (The operation-

al plunger does not need to be

changed on general-purpose and high-

sensitivity overtravel models.) The roll-

er plunger can be set in either two po-

sitions at 90°.

WLCA2-2N and WL01CA2-2N can be

set only in either the forward or back-

ward direction.

WLCA@, WL01CA@, WLCA@-2,

WL01CA@-2, WLGCA@, WLH@,

WL01H@, WLG@, WL01G@,

WLMCA2@, WLMH2@, WLMG2@,

WLMGCA2@

Adjustable Rod Levers:

WLCL, WL01CL, WLCL-2, WL01CL-2

Horizontal Plungers:

WLSD@, WL01SD@

Top-roller Plungers:

WLD2, WL01D2

Sealed Top-roller Plungers:

WLD28, WL01D28

Head

Loosen the screws.

Does not include -RP60 Series or -141

Series.

One-side Operation for General-purpose and High-precision Switches

The output of the Switch will be

changed, regardless of which

direction the lever is pushed.

The output of the Switch will

only be changed when the lever

is pushed in one direction.

Operating Operating Not operating Operating Operating Not operating

Operational

plunger

Operation in both

directions

Clockwise operation

Counterclockwise

operation

Cam Direction Changing Procedure for Overtravel, 90° Operation Switches

Changing the Operating Direction

By removing the Head on models

which can operate on one-side only,

and then changing the direction of the

operational plunger, one of three oper-

ating directions can be selected. For

overtravel 90° operation models, one

of three operating directions can be se-

lected by loosening the rubber holder

using either a coin or a flat-blade

screwdriver and changing the direction

of the internal rubber section.

Loosen the cam holder with a

coin or screwdriver. Take out

the cam from the Switch.

Change the direction of the cam as

required by your intended operation

and then reinstall the cam.

Roller Levers:

WLCA2, WL01CA2, WLGCA2,

WLMGCA2@

Adjustable Roller Levers:

WLCA12, WL01CA12

Adjustable Rod Levers:

WLCL, WL01CL

Overtravel Models:

WLCA@-2N, WL01CA@-2N

The tightening torque for the screws on

the Head is 0.78 to 0.88 N•m.

Relationship of cam to operation as observed from the rear of Switch

Operation on both sides

Operation on one side

Operates

Operates Does not operate

Operation on one side

Avoid this combination

Does not

operate

Operates

http://www.ia.omron.com/

41

WL/WLM

Item

Applicable models and Actuators

Details

Roller Levers:

Installing the Roller on the Inside

By installing the roller lever in the op-

posite direction, the roller can be in-

stalled on the inside. (Set so that

operation can be completed within a

180° level range.)

WLCA@, WL01CA@, WLH@, WL-

CA@-2, WL01CA@-2, WLMCA2@,

WLMH2@, WLMG2@, WLMGCA2@,

WLG@, except for the adjustable roller

levers.

Fork Lever Locks:

WLCA32-4@, WL01CA32-4@

Loosen the

Allen-head bolt.

WLCA32-41

WLCA32-43

Selecting the Roller Position

There are four types of fork lever lock

for use depending on the roller posi-

tion.

Fork Lever Locks:

WLCA32-4@, WL01CA32-4@

WLCA32-42

WLCA32-44

Note: An explanation of the operation of fork lever locks is provided after

this table.

WLCA12 etc.

Loosen this

Allen-head bolt

and adjust the

length of the rod.

Adjustment range:

25 to 89 mm

Adjusting the Length of the Rod or

Lever

The length of the rod or lever can be

adjusted by loosening the Allen-head

bolt.

Adjustable Roller Levers:

WLCA12, WL01CA12 etc.

Adjustable Rod Levers:

WLCL, WL01CL, etc.

Loosen this

Allen-head bolt

and adjust the

length of the

lever.

Operation of Fork Lever Locks

The fork lever lock is configured so that the dog pushes the lever to reverse the output and this reversed state is maintained even after

the dog continues on. If the dog then pushes the lever from the opposite direction, the lever will return to its original position.

Example

NC terminal: ON

NO terminal: ON

http://www.ia.omron.com/

42

Precautions for All Limit Switches

(Not including Safety Switches)

Note: Refer to the Precautions section for each Switch for specific precautions applicable to each Switch.

Precautions for Safe Use

• If the Switch is to be used as a switch in an emergency stop circuit

or in a safety circuit for preventing accidents resulting in injuries or

deaths, use a Switch with a direct opening mechanism, use the NC

contacts with a forced release mechanism, and set the Switch so

that it will operate in direct opening mode.

For safety, install the Switch using one-way rotational screws or

other similar means to prevent it from easily being removed. Protect

the Switch with an appropriate cover and post a warning sign near

the Switch in order to ensure the safety.

• Do not supply electric power when wiring. Otherwise electric shock

may result.

• Keep the electrical load below the rated value.

• Be sure to evaluate the Switch under actual working conditions

after installation.

• Do not touch the charged switch terminals while the Switch has

carry current, otherwise electric shock may result.

• If the Switch has a ground terminal, be sure to connect the ground

terminal to a ground wire.

• Do not disassemble the Switch while electric power is being supply.

Otherwise electric shock may result.

• The durability of the Switch greatly varies with switching conditions.

Before using the Switch, be sure to test the Switch under actual

conditions. Make sure that the number of switching operations is

within the permissible range.

If a deteriorated Switch is used continuously, insulation failures,

contact weld, contact failures, switch damage, or switch burnout

may result.

• Maintain an appropriate insulation distance between wires

connected to the Switch.

• Some types of load have a great difference between normal current

and inrush current. Make sure that the inrush current is within the

permissible value. The greater the inrush current in the closed

circuit is, the greater the contact abrasion or shift will be.

Consequently, contact weld, contact separation failures, or

insulation failures may result. Furthermore, the Switch may become

broken or damaged.

Mounting

• Do not modify the actuator, otherwise the operating characteristics

and performance of the actuator will change.

• Do not enlarge the mounting holes of the Switch or modify the

Switch. Doing so may result in insulation failures, housing damage,

or physical injuries.

• Be sure to evaluate the Switch under actual working conditions

after installation.

• Do not apply oil, grease, or other lubricants to the moving parts of

the actuator, otherwise the actuator may not operate correctly.

Furthermore, intrusion of oil, grease, or other lubricants inside the

Switch may reduce sliding characteristic or cause failures in the

Switch.

• Mount the Switch and secure it with the specified screws tightened

to the specified torque along with flat washers and springs. The

actuator of a Pushbutton Limit Switch mounted to a panel with

excessive tightening torque may not operate correctly.

• Be sure to wire the Switch so that the conduit opening is free of

metal powder or any other impurities.

• If glue or bonding agent is applied, make sure that it does not

adhere to the movable parts or intrude inside the Switch, otherwise

the Switch may not work correctly or cause contact failure. Some

types of glue or bonding agent may generate a gas that may have

a bad influence on the Switch. Pay the utmost attention when

selecting the glue or locking agent.

• Do not drop or disassemble the Switch, otherwise the Switch will

not be capable of full performance. Furthermore, the Switch may

become broken or burnt.

• Some models allow changes in head directions. When changing

the head of such a model, make sure that the head is free of any

foreign substance. Tighten each screw of the head to the rated

torque.

• Be sure to take measures so that no foreign material, oil, or water

will penetrate into the Switch through the conduit opening. Be sure

to attach a connector suited to the cable thickness and tighten the

connector securely to the rated torque.

I

• Do not impose shock or vibration on the actuator while it is fully

pressed. Otherwise, the actuator will partially abrade and an

actuation failure may result.

(A)

Wiring

i (Inrush current)

• If the wiring method is incorrect, the wires may get caught on

objects or the lead wires may be pulled excessively. Make sure that

the lead wires are sufficiently long and secure them along the wiring

path.

Incorrect

Correct

io (Constant current)

t

Terminal box

Wiring

Pay the utmost attention so that each terminal is wired correctly.

If the terminal is wired incorrectly, the Switch will not function.

Furthermore, not only will the Switch have a bad influence on the

external circuit, the Switch itself may become damaged or burnt.

• Pay the utmost attention so that each terminal is wired correctly. If

a terminal is wired incorrectly, the Limit Switch will not function

properly. Furthermore, not only will the Limit Switch have an

adverse influence on external circuits, the Limit Switch itself may

become damaged or burnt.

Precautions for Correct Use

For details, refer to Precautions for Correct Use in the

Technical Guide for Limit Switches.

http://www.ia.omron.com/

C-1

Technical Guide for Limit Switches

Precautions for Correct Use

• The following graph shows an example of changes in contact force

according to the stroke. The contact force near the OP or RP is

unstable, and the Limit Switch cannot maintain high reliability.

Furthermore, the Limit Switch cannot withstand strong vibration or

shock.

Switch Operation

• The Switch in actual operation may cause accidents that cannot be

foreseen from the design stage. Therefore, the Switch must be

practically tested before actual use.

• When testing the Switch, be sure to apply the actual load condition

together with the actual operating environment.

• All the performance ratings in this catalog are provided under the

following conditions unless otherwise specified.

Inductive load:

A minimum power factor of 0.4 (AC) or a maximum time constant

of 7 ms (DC)

Lamp load:

Stroke

An inrush current 10 times higher than the normal current

Motor load:

An inrush current 6 times higher than the normal current

(1) Ambient temperature: +5°C to +35°C

(2) Ambient humidity: 40% to 70%RH

Note: An inductive load causes a problem especially in DC circuitry. Therefore,

it is essential to know the time constants (L/R) of the load.

FP

Changes to opposite side

Stroke

Changes to opposite side

OTP

Solenoid

(Approximately

10 to 20 times higher)

Incandescent lamp

(Approximately

10 to 15 times higher)

Motor

(Approximately

5 to 10 times higher)

• If the Limit Switch is used so that the actuator is constantly pressed,

it will fail quickly and reset faults may occur. Inspect the Limit Switch

periodically and replace it as required.

Relay

(Approximately

4 to 5 times higher)

Mechanical Conditions for Switch Selection

• The actuator must be selected according to the operating method.

(Refer to page 9.)

• Check the operating speed and switching frequency.

1. If the operating speed is extremely low, the switching of the

movable contact will become unstable, thus resulting in incorrect

contact or contact weld.

2. If the operating speed is extremely high, the Switch may break due

to shock. If the switching frequency is high, the switching of the

contacts cannot catch up with the switching frequency. Make

sure that the switching frequency is within the rated switching

frequency.

• Do not impose excessive force on the actuator, otherwise the

actuator may become damaged or not operate correctly.

• Make sure that the stroke is set within the suitable range specified

for the model, or otherwise the Switch may break.

Mechanical Characteristics

Operating Force, Stroke, and Contact Characteristics

• The following graph indicates the relationship between operating

force and stroke or stroke and contact force. In order to operate the

Limit Switch with high reliability, it is necessary to use the Limit

Switch within an appropriate contact force range. If the Limit Switch

is used in a normally closed condition, the dog must be installed so

that the actuator will return to the FP when the actuator is actuated

by the dog. If the Limit Switch is used in a normally open condition,

the actuator must be pressed to 70% to 100% of the OT (i.e., 60%

to 80% of the TT) and any slight fluctuation must be absorbed by

the actuator.

Electrical Characteristics

• If the full stroke is set close to the OP or RP, contact instability may

result. If the full stroke is set to the TTP, the actuator or switch may

become damaged due to the inertia of the dog. In that case, adjust

the stroke with the mounting panel or the dog.

Refer to page 11, Dog Design, page 12, Stroke Settings vs. Dog

Movement Distance, and page 12, Dog Surface for details.

Electrical Characteristics for Switch Selection

• The switching load capacity of the Switch greatly varies between

AC and DC. Always be sure to apply the rated load. The control

capacity will drastically drop if it is a DC load. This is because a DC

load has no current zero-cross point, unlike an AC load. Therefore,

if an arc is generated, it may continue comparatively for a long time.

Furthermore, the current direction is always the same, which

results in a contact relocation phenomena whereby the contacts

easily stick to each other and do not separate when the surfaces of

the contacts are uneven.

• If the load is inductive, counter-electromotive voltage will be

generated. The higher the voltage is, the higher the generated

energy will be, which will increase the abrasion of the contacts and

contact relocation phenomena. Be sure to use the Switch within the

rated conditions.

• If the load is a minute voltage or current load, use a dedicated

Switch for minute loads. The reliability of silver-plated contacts,

which are used by standard Switches, will be insufficient if the load

is a minute voltage or current load.

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C-2

Technical Guide for Limit Switches

Contact Protective Circuit

Apply a contact protective circuit to increase the contact durability,

prevent noise, and suppress the generation of carbide or nitric acid.

Be sure to apply the contact protective circuit correctly, otherwise an

adverse effect may occur.

The following provides typical examples of contact protective circuits.

If the Switch is used in an excessively humid location for switching a

load that easily generates arcs, such as an inductive load, the arcs

may generate NOx, which will change into HNO³if it reacts with

moisture.

Consequently, the internal metal parts may corrode and the Switch

may fail. Be sure to select the ideal contact preventive circuit from the

following.

Also, load operating times may be delayed somewhat if a contact

protective circuit (a surge killer) is used.

Typical Examples of Contact Protective Circuits

Applicable

current

Circuit example

Feature and details

Element selection

AC

DC

C: 1 to 0.5 μF × switching current (A)

R: 0.5 to 1 Ω × switching voltage (V)

The values may change according to the charac-

teristics of the load.

Condi-

tional *

* When AC is switched, the load impedance must

be lower than the CR impedance.

C

R

Inductive

load

O

Power

supply

The capacitor suppresses the spark discharge of

current when the contacts are open. The resistor

limits the inrush current when the contacts are

closed again. Consider the roles of the capacitor

and resistor and determine ideal capacitance and

resistance values through testing.

CR circuit

Generally, use a capacitor that has a dielectric

strength of between 200 and 300 V. Use an AC ca-

pacitor for an AC circuit, i.e., a capacitor that has no

polarity.

If, however, the arc shutoff capacity between the con-

tacts is a problem at high DC voltages, it may be more

effective to connect a capacitor and resistor across

the contacts rather than the load. Performing testing

to determine the most suitable method.

The operating time will be greater if the load is a re-

lay or solenoid.

Connecting the CR circuit in parallel to the load is

effective when the power supply voltage is 24 or 48

V and in parallel to the contacts when the power

supply voltage is 100 to 200 V.

C

Inductive

load

O

Power

supply

R

Energy stored in the coil is changed into current by

the diode connected in parallel to the load. Then

the current flowing to the coil is consumed and

Joule heat is generated by the resistance of the in- ward current as high or higher than the load cur-

ductive load. The reset time delay with this method rent.

The diode must withstand a peak inverse voltage

10 times higher than the circuit voltage and a for-

Diode

method

Power

supply

Inductive

load

×

O

is longer than that in the CR method.

If a suitable Zener voltage is not used, the load may

Diode and

Zener diode

method

This method will be effective if the reset time delay fail to operate depending on the environment. Use

caused by the diode method is too long.

Power

supply

Inductive

load

a Zener diode with a Zener voltage that is about 1.2

times the power supply voltage.

This method makes use of constant-voltage char-

acteristic of the varistor so that no high voltage is Select a varistor with a cut voltage Vc that satisfies

imposed on the contacts. This method causes a re- the following formula. For AC, the voltage must be

Varistor

method

set time delay.

multiplied by the square root of 2.

Inductive

load

O

Connecting a varistor in parallel to the load is effec- Vc > Power supply voltage × 1.5

Power

supply

tive when the supply voltage is 24 to 48 V and in

parallel to the contacts when the supply voltage is because high voltages will not be cut.

100 to 200 V.

If Vc is set too high, effectiveness will be reduced

Do not apply contact protective circuits (surge killers) as shown below.

This circuit effectively suppresses arcs when

the contacts are OFF. When the contacts are

open, capacity is stored in the capacitor, and

short-circuit current of the capacitor will flow

when the contacts are turned ON, which may

cause contacts to weld.

This circuit effectively suppresses arcs when

the contacts are OFF. When the contacts are

ON again, however, charge current will flow to

the capacitor, which may result in contact weld.

C

Load

C

Load

Power

supply

Power

supply

Using Switches for Micro Loads

Contact faults may occur if a Switch for a general-load is used to

switch a micro load circuit. Use switches in the ranges shown in the

diagram on the right. However, even when using micro load models

within the operating range shown here, if inrush current occurs when

the contact is opened or closed, it may increase contact wear and so

decrease durability. Therefore, insert a contact protection circuit

where necessary. The minimum applicable load is the N-level

reference value. This value indicates the malfunction reference level

for the reliability level of 60% (λ⁶⁰).

5 mW

800 mW

26 mA

0.16 mA

30

24

Operating range

for standard

models

Operating range

for micro-load

models

The equation, λ⁶⁰= 0.5 × 10^–6/operations indicates that the estimated

malfunction rate is less than 1/2,000,000 operations with a reliability

level of 60%.

12

Unusable

range

5

0

1 mA

100 mA 160 mA

0.1

1

10

100

1,000

Current (mA)

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C-3

Technical Guide for Limit Switches

Connections

Operating Environment

• Do not connect a Single Limit Switch to two power supplies that are

different in polarity or type.

• Do not use the Switch by itself in atmospheres containing

flammable or explosive gases. Arcs and heating resulting from

switching may cause fire or explosion.

• Use protective covers to protect Switches that are not specified as

waterproof or airtight whenever they are used in locations subject

to splattering or spraying oil or water, or to accumulation of dust or

dirt.

Power Connection Examples

(Connection of Different Polarities)

Incorrect Power Connection Example

(Connection of Different Power Supplies)

There is a risk of AC and DC mixing.

Incorrect

L

NC

NO

AC

DC

NO

Correct

Incorrect

L

Correct

Terminal box

NC

NO

• The materials of Limit Switch may change in quality or deteriorate

if the Limit Switch is used outdoors or any other location where the

Limit Switch is exposed to special machining oil. Consult your

OMRON representative before selecting the model.

Connect the load to the same polarities.

• Be sure to install the Switch so that the Switch is free from dust or

metal powder. The actuator and the switch casing must be

protected from the accumulation of dust or metal powder.

• Do not design a circuit where voltage is imposed between contacts,

otherwise contact welding may result.

Incorrect

Correct

Incorrect

• Do not use the Switch in locations where the Switch is exposed to

hot water at a temperature greater than 60°C or steam.

• Do not use the Switch under temperatures or other environmental

conditions not within the specified ranges.

The rated permissible ambient temperature range varies with the

model. Refer to the specifications in this catalog. If the Switch is

exposed to radical temperature changes, the thermal shock may

deform the Switch and the Switch may malfunction.

200 V

L

100 V

• Do not use a circuit that will short-circuit if an error occurs,

otherwise the charged part may melt and break off.

NC

NO

NC

NO

Incorrect

Correct

Separate the Switch

from hot water.

L

• Application of Switch to a Low-voltage, Low-current Electronic

Circuit.

1. If bouncing or chattering of the contacts results and causes

problems, take the following countermeasures.

(a)Insert an integral circuit.

(b)Suppress the generation of pulse from the contact bouncing

or chattering of the contacts so that it is less than the noise

margin of the load.

• Be sure to protect the Switch with a cover if the Switch is in a

location where the Switch may be actuated by mistake or where the

Switch is likely cause an accident.

Correct

Incorrect

2. Conventional silver-plated contacts are not suited to this

application. Use gold-plated contacts, which are ideal for

handling minute voltage or current loads.

(Malfunction prevented)

3. The contacts of the Switch used for an emergency stop must be

normally closed with a positive opening mechanism.

• In order to protect the Switch from damage due to short-circuits, be

sure to connect a quick-response fuse with a breaking current 1.5

to 2 times larger than the rated current to the Switch in series. When

complying with EN approved ratings, use a 10-A IEC 60269-

compliant gI or gG fuse.

• If vibration or shock is continuously imposed on the Switch, contact

failure, malfunction, or decrease in service life may be caused by

abrasive powder generated from the internal parts. If excessive

vibration or shock is imposed on the Switch, the contacts may

malfunction or become damaged. Make sure to install the Switch in

locations free of constant vibration or shock.

• Do not use the Switch with silver-plated contacts for long periods if

the switching frequency of the Switch is comparatively low or the

load is minute. Otherwise, sulfuric film will be generated on the

contacts and contact failures may result. Use the Switch with gold-

plated contacts or use a dedicated Switch for minute loads instead.

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C-4

Technical Guide for Limit Switches

• Do not use the Switch in locations with corrosive gas, such as

sulfuric gas (H²S or SO2), ammonium gas (NH3), nitric gas (HNO3),

or chlorine gas (Cl²), or high temperature and humidity. Otherwise,

contact failure or corrosion damage may result.

Outdoor Use

• If the Limit Switch is used in places with sludge or dust powder

spray, make sure that the mechanical parts are sealed with a

rubber cap.

• If the Switch is used in locations with silicone gas, arc energy may

create silicon dioxide (SiO²) on the contacts and a contact failure

may result. If there is silicone oil, silicone sealant, or wire covered

with silicone close to the Switch, attach a contact protective circuit

to suppress the arcing of the Switch or eliminate the source of

silicone gas generation.

• The rubber materials exposed to ozone may deteriorate. Check

that the rubber parts are made of environment-resistive materials,

such as chloroprene, silicone, or fluorine rubber.

• Due to capillary attraction, rainwater may enter the Limit Switch

through the lead wires or sheath. Be sure to cover the wire

connections in a terminal box so that they are not directly exposed

to rainwater.

• If the Limit Switch is used outdoors, the steel parts of the Limit

Switch (such as the screws and plunger parts) may corrode.

Models with resistance against climatic conditions have been

added to the series. Consider using outdoor models, such as the

WL-@P1 or D4C-@P.

• "Limit Switch is used outdoors" refers to an environment where the

Limit Switch is exposed directly to rainwater or sunlight (e.g.,

multistory parking facilities) excluding locations with corrosive gas

or salty breezes. A Limit Switch used outdoors may not release due

to icing and may not satisfy specified standards.

Regular Inspection and Replacement

• If the Switch is normally closed with low switching frequency (e.g.,

once or less than once a day), a reset failure may result due to the

deterioration of the parts of the Switch. Regularly inspect the Switch

and make sure that the Switch is in good working order.

• In addition to the mechanical durability or electrical durability of the

Switch described previously, the durability of the Switch may

decrease due to the deterioration of each part, especially rubber,

resin, and metal. Regularly inspect the Switch and replace any part

that has deteriorated in order to prevent accidents from occurring.

• If the Switch is not turned On or OFF for a long time, oxidation of

the contacts may decrease contact reliability. Faulty continuity may

result in accidents.

Operation

• Carefully determine the position and shape of the dog or cam so

that the actuator will not abruptly snap back, thus causing shock. In

order to operate the Limit Switch at a comparatively high speed,

use a dog or cam that keeps the Limit Switch turned ON for a

sufficient time so that the relay or valve will be sufficiently

energized.

• Be sure to mount the Switch securely in a clean location to ensure

ease of inspection and replacement. The Switch with operation

indicator is available, which is ideal if the location is dark or does

not allow easy inspection or replacement.

Difficult to inspect or install

Easy to inspect

• The method of operation, the shape of the cam or dog, the

operating frequency, and the travel after operation have a large

influence on the durability and operating accuracy of the Limit

Switch. The cam or dog must be smooth in shape.

The cover must be located in the

direction ensuring ease of

maintenance or inspection.

Incorrect

Correct

Storage of Switch

Snapped

back

• When storing the Switch, make sure that the location is free of

corrosive gas, such as H²S, SO2, NH3, HNO3, or Cl2, or dust and

does not have a high temperature or humidity.

Abruptly

actuated

• Be sure to inspect the Switch before use if it has been stored for

three months or more.

Weather Resistance, Cold Resistance, and Heat

Resistance

Incorrect

Correct

Silicon rubber is used to increase resistance to weather, cold, and

heat. Silicon rubber, however, can generate silicon gas. (This can

occur at room temperature, but the amount of silicon gas generated

increases at higher temperatures.) Silicon gas will react as a result of

arc energy and form silicon oxide (SiO²). If silicon oxide accumulates

on the contacts, contact interference can occur and can interfere with

the device. Before using a Switch, test it under actual application

conditions (including the environment and operating frequency) to

confirm that no problems will occur in actual.

Snapped

back

Abruptly

actuated

• Appropriate force must be imposed on the actuator by the cam or

dog in both rotary operation and linear operation.

If the dog touches the lever as shown below, the operating position

will not be stable.

Incorrect

Dog

Correct

Dog

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C-5

Technical Guide for Limit Switches

• Unbalanced force must not be imposed on the actuator. Otherwise,

wear and tear on the actuator may result.

• Be sure to use the Limit Switch according to the characteristics of

the actuator.

If a roller arm lever actuator is used, do not attempt to actuate the

Limit Switch in the direction shown below.

Incorrect

Correct

Incorrect

Dog

Roller

Dog

Roller

• Do not modify the actuator to change the OP.

• With the long actuator of an Adjustable Roller Lever Switch, the

following countermeasures against lever shaking are

recommended.

1.Make the rear edge of the dog smooth with an angle of 15° to 30°

or make it in the shape of a quadratic curve.

• With a roller actuator, the dog must touch the actuator at a right

angle. The actuator or shaft may deform or break if the dog touches

the actuator (roller) at an oblique angle.

2.Design the circuit so that no error signal will be generated.

3.Use a switch that is actuated in one direction only. (Alternatively,

set the Switch so that it is operated only in one direction.)

• With a bevel plunger actuator, make sure that the width of the dog

is wider than that of the plunger.

Incorrect

Correct

Dog

Incorrect

Correct

• Make sure that the actuator does not exceed the OT (overtravel)

range, otherwise the Limit Switch may malfunction. When mounting

the Limit Switch, be sure to adjust the Limit Switch carefully while

considering the whole movement of the actuator.

Operating

body

PT (Pretravel)

Install a stopper.

70% of

FP (Free position)

OP (Operating position)

100% of

rated OT

OT (Overtravel)

rated OT

TTP (Total travel position)

Optimum setting range

Distance to the

optimum setting range.

Reference line

• The Limit Switch may soon malfunction if the OT is excessive.

Therefore, adjustments and careful consideration of the position of

the Limit Switch and the expected OT of the operating body are

necessary when mounting the Limit Switch.

Correct

Stopper

• When using a pin-plunger actuator, make sure that the stroke of the

actuator and the movement of the dog are located along a single

straight line.

Incorrect

Correct

Operating

body

Operating

body

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C-6

Technical Guide for Limit Switches

Dog Design

Speed and Angle of Dog and Relationship with Actuator

Before designing a dog, carefully consider the operating speed and angle of the dog (φ) and their relationship with the shape of the actuator. The

optimum operating speed (V) of a standard dog at an angle of 30° to 45° is 0.5 m/s maximum.

Roller Lever Switches

(1) Non-overtravel Dog

Plunger Switches

If the dog overrides the actuator, the front and rear of the dog may be

the same in shape, provided that the dog is not designed to be

separated from the actuator abruptly.

Dog speed: 0.5 m/s max. (standard speed)

Roller Plunger

φ

V max. (m/s)

0.4

0.25

0.1

y

30°

45°

60°

0.8 (TT)

80% of to-

tal travel

φ

V max. (m/s)

y

φ

30°

20°

0.25

0.5

0.6 to 0.8 (TT)

0.5 to 0.7 (TT)

Lever set

vertically

60° to 90° 0.05 (low speed)

Dog speed: 0.5 m/s ≤ V ≤ 2 m/s (high speed)

Ball Plunger

φ

V max. (m/s)

y

φ

30°

20°

0.25

0.5

0.6 to 0.8 (TT)

0.5 to 0.7 (TT)

Change lever set angle (θ)

according to dog angle (φ)

θ

45°

50°

φ

45°

40°

V max. (m/s)

y

Bevel Plunger

0.5

0.6

1.3

2

0.5 to 0.8 (TT)

0.5 to 0.7 (TT)

φ

V max. (m/s)

y

φ

60° to 55°

75° to 65°

30° to 35°

15° to 25°

30°

20°

0.25

0.5

0.6 to 0.8 (TT)

0.5 to 0.7 (TT)

Note: The above y values indicate the ratio ranges based on TT (total travel).

Therefore, the optimum pressing distance of the dog is between 50% and

80% (or 50% and 70%).

Note: The above y values indicate the ratio

ranges based on TT (total travel).

Therefore, the optimum pressing

distance of the dog is between 60%

and 80% (or 50% and 70%).

(2) Overtravel Dog

Dog speed: 0.5 m/s max.

Fork Lever Lock Models

45°

φ

V max. (m/s)

y

φ

Dog

30°

45°

60°

0.4

0.25

0.1

0.05 (low speed)

0.8 (TT)

80% of to-

tal travel

10

Lever set

vertically

60°

to 90

°

60°

27.6

Dog speed: 0.5 m/s min.

If the speed of the overtravel dog is comparatively high, make the rear

edge of the dog smooth at an angle of 15° to 30° or make it in the

shape of a quadratic curve. Then lever shaking will be reduced.

Note: Design the shape of the dog so that it does not come in contact with the

other roller lever when the actuator is inverted.

φ

15 to 30°

60° max.

θ

φ

V max. (m/s)

y

45°

50°

60° to 55°

75° to 65°

45°

40°

30° to 35°

15° to 25°

0.5

0.6

1.3

2

0.5 to 0.8 (TT)

0.5 to 0.7 (TT)

Note: The above y values indicate the ratio ranges based on TT (total travel).

Therefore, the optimum pressing distance of the dog is between 50% and

80% (or 50% and 70%).

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C-7

Technical Guide for Limit Switches

Stroke Settings vs. Dog Movement Distance

Dog Surface

• The following information on stroke settings is based on the

movement distance of the dog instead of the actuator angle.

The following is the optimum stroke of the Limit Switch.

Optimum stroke: PT + {Rated OT × (0.7 to 1.0)}

The surface of dog touching the actuator should be 6.3 S in quality

and a hardness of approximately HV450.

For smooth operation of the actuator, apply molybdenum disulfide

grease to the actuator and the dog touching the actuator. This is ideal

for Limit Switches of drip-proof construction and Multiple Limit

Switches.

In terms of angles, the optimum stroke is expressed as θ¹+ θ2.

70% to 100% of rated OT

Maintenance and Repairs

The user of the system must not attempt to perform maintenance and

repairs. Contact the manufacturer of the system concerning

maintenance and repairs.

Other

• The standard material for the switch seal is nitrile rubber (NBR),

which has superior resistance to oil. Depending on the type of oil or

chemicals in the application environment, however, NBR may

deteriorate, e.g., swell or shrink. Confirm performance in advance.

• The correct Switch must be selected for the load to ensure contact

reliability. Refer to precautions for micro loads in individual product

information for details.

• When using a Limit Switch with a long lever or long rod lever, make

sure that the lever is in the downward direction.

• Wire the leads as shown in the following diagram.

PT: Pretravel

OT: Overtravel

• The movement distance of the dog based on the optimum stroke is

expressed by the following formula.

Movement distance of dog

R (1–cosθ)

X = Rsinθ +

(mm)

tanφ

Correct Wiring

Crimped location facing up Lead

Lead

φ

Crimp terminal with insulating sheath

Terminal screw

Dog

Terminal

screw

Terminal

Incorrect Wiring

Crimped location facing down Lead

Lead

φ: Dog angle

θ: Optimum stroke angle

R: Actuator length

Crimp terminal with insulating sheath

Terminal screw

Terminal

screw

X: Dog movement distance

Terminal

• The distance between the reference line and the bottom of the dog

based on the optimum stroke is expressed by the following formula.

Y = a + b + r (mm)

Too close to maintain dielectric strength

• Reduced ambient temperature tends to result in hardening of the

actuator's rubber seal. Therefore, reset may be delayed or reset

may fail if the Switch is used with the actuator continually pressed

in. Contact your OMRON representative if the Switch is to be used

for this type of environment or application.

Dog

Y

Reference line

Mounting hole

a: Distance between reference line and actuator fulcrum

b: R cosθ

r: Roller radius

Y: Distance between reference line and bottom of dog

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C-8

Read and Understand This Catalog

Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any questions or

comments.

Warranty and Limitations of Liability

WARRANTY

OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if

speciﬁed) from date of sale by OMRON.

OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR

FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE

HAS DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL

OTHER WARRANTIES, EXPRESS OR IMPLIED.

LIMITATIONS OF LIABILITY

OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS, OR COMMERCIAL

LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR

STRICT LIABILITY.

In no event shall responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted.

IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS REGARDING THE PRODUCTS UNLESS

OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT

SUBJECT TO CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.

Application Considerations

SUITABILITY FOR USE

OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer's

application or use of the product.

At the customer's request, OMRON will provide applicable third party certiﬁcation documents identifying ratings and limitations of use that apply to the

products. This information by itself is not sufﬁcient for a complete determination of the suitability of the products in combination with the end product,

machine, system, or other application or use.

The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible

uses of the products, nor is it intended to imply that the uses listed may be suitable for the products:

• Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this catalog.

• Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles, safety

equipment, and installations subject to separate industry or government regulations.

• Systems, machines, and equipment that could present a risk to life or property.

Please know and observe all prohibitions of use applicable to the products.

NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE

SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCT IS PROPERLY RATED AND

INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.

Disclaimers

CHANGE IN SPECIFICATIONS

Product speciﬁcations and accessories may be changed at any time based on improvements and other reasons.

It is our practice to change model numbers when published ratings or features are changed, or when signiﬁcant construction changes are made.

However, some speciﬁcations of the product may be changed without any notice. When in doubt, special model numbers may be assigned to ﬁx

or establish key speciﬁcations for your application on your request. Please consult with your OMRON representative at any time to conﬁrm actual

speciﬁcations of purchased product.

DIMENSIONS AND WEIGHTS

Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown.

ERRORS AND OMISSIONS

The information in this catalog has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical,

typographical, or proofreading errors, or omissions.

PERFORMANCE DATA

Performance data given in this catalog is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent

the result of OMRON’s test conditions, and the users must correlate it to actual application requirements. Actual performance is subject to the OMRON

Warranty and Limitations of Liability.

PROGRAMMABLE PRODUCTS

OMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof.

COPYRIGHT AND COPY PERMISSION

This catalog shall not be copied for sales or promotions without permission.

This catalog is protected by copyright and is intended solely for use in conjunction with the product. Please notify us before copying or reproducing this

catalog in any manner, for any other purpose. If copying or transmitting this catalog to another, please copy or transmit it in its entirety.

2007.3

In the interest of product improvement, specifications are subject to change without notice.

OMRON Corporation

Industrial Automation Company

http://www.ia.omron.com/


型号：	WLMGCA2-LDK13A
厂家：	OMRON ELECTRONICS LLC
描述：	LIMIT SWITCH
文件：	总51页 (文件大小：1881K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

WLMGCA2-LDK13A [OMRON]

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