D4A-4514N [OMRON]

General-purpose Limit Switch;
D4A-4514N
型号: D4A-4514N
厂家: OMRON ELECTRONICS LLC    OMRON ELECTRONICS LLC
描述:

General-purpose Limit Switch

开关 光电二极管
文件: 总24页 (文件大小:952K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
DGen4eraAl-pu-rp@oseNLimit Switch  
The Limit Switch with Better Seal, Shock  
Resistance, and Strength  
• A double seal on the head, a complete gasket cover, and other  
features ensure a better seal (meets UL NEMA 3, 4, 4X, 6P, 12,  
13).  
• Block mounting method to reduce weight to 290 g.  
• Block mounting method also reduces downtime for mainte-  
nance.  
• Wide standard operating temperature range:  
– 40°C to 100°C (standard type).  
• Models with fluoro-rubber available for greater resistance to  
chemicals.  
• DPDT, double-break models available for complex operations.  
• Approved by UL, CSA, and CCC (Chinese standard).  
Model Number Structure  
Model Number Legend  
D4A-@@@@N  
1 2  
3
1. Receptacle Box  
3. Head  
01: Roller lever, standard  
1:  
2:  
3:  
4:  
1/2-14 NPT conduit (SPDT, double-break)  
1/2-14 NPT conduit (DPDT, double-break)  
G 1/2 conduit (SPDT, double-break)  
G 1/2 conduit (DPDT, double-break)  
02: Roller lever, high-sensitivity  
03: Roller lever, low torque  
04: Roller lever, high-sensitivity, low torque  
05: Roller lever, maintained  
17: Roller lever, sequential operation  
18: Roller lever, center neutral operation  
06: Side plunger, standard  
2. Switch Box  
1:  
3:  
E:  
SPDT, double-break, without indicator  
SPDT, double-break, neon lamp  
SPDT, double-break, LED  
(24 VDC, leakage current: 1.3 mA)  
07-V: Side plunger, vertical roller  
07-H: Side plunger, horizontal roller  
08: Side plunger, adjustable  
09: Top plunger, standard  
5:  
7:  
9:  
DPDT, double-break, simultaneous operation, without indi-  
cator  
DPDT, double-break, sequential operation, without indicator  
(See note 1.)  
10: Top plunger, roller  
DPDT, double-break, center neutral operation, without indi-  
cator (See note 2.)  
11: Top plunger, adjustable  
12: Flexible rod, spring wire  
14: Flexible rod, plastic rod  
15: Flexible rod, cat whisker  
16: Flexible rod, coil spring  
L:  
DPDT, double-break, simultaneous operation, neon lamp  
DPDT, double-break, simultaneous operation, LED  
P:  
Note: 1. Use the D4A-0017N Special Head.  
2. Use the D4A-0018N Special Head.  
3. Fluoro-rubber sealed type is also available.  
74  
General-purpose Limit Switch D4A-@N  
Ordering Information  
List of Models  
SPDT, Double-break Switches  
Receptacle box  
Indicator  
G 1/2 Conduit  
Without indicator  
With neon lamp indicator  
(AC)  
With LED indicator (DC)  
Actuator  
Model  
Approved  
Model  
D4A-3301N  
D4A-3302N  
---  
Approved  
standards  
Model  
standards  
Roller lever  
(See note 1.)  
Standard  
D4A-3101N  
D4A-3102N  
D4A-3103N  
D4A-3104N  
D4A-3105N  
D4A-3106N  
UL, CSA  
UL, CSA  
D4A-3E01N  
D4A-3E02N  
---  
High-sensitivity  
Low-torque  
UL, CSA  
UL, CSA  
UL, CSA  
UL, CSA  
UL, CSA  
UL, CSA  
UL, CSA  
UL, CSA  
UL, CSA  
UL, CSA  
High-sensitivity, Low-  
torque  
D4A-3304N  
D4A-3305N  
---  
---  
Maintained  
(See note 2.)  
D4A-3E05N  
---  
Side plunger  
Standard  
Vertical roller  
Horizontal roller  
Adjustable  
D4A-3107-VN UL, CSA  
D4A-3107-HN UL, CSA  
D4A-3307-VN UL, CSA  
D4A-3307-HN UL, CSA  
D4A-3E07-VN  
---  
D4A-3108N  
UL, CSA  
D4A-3308N  
UL, CSA  
D4A-3E08N  
Top plunger  
Flexible rod  
Standard  
Roller  
D4A-3109N  
D4A-3110N  
UL, CSA  
UL, CSA  
D4A-3309N  
D4A-3310N  
UL, CSA  
UL, CSA  
---  
---  
Adjustable  
Spring wire  
D4A-3111N  
D4A-3112N  
UL, CSA  
UL, CSA  
D4A-3311N  
D4A-3312N  
UL, CSA  
UL, CSA  
---  
D4A-3E12N  
Plastic rod  
Cat whisker  
Coil spring  
D4A-3114N  
D4A-3115N  
D4A-3116N  
UL, CSA  
UL, CSA  
UL, CSA  
D4A-3314N  
D4A-3315N  
D4A-3316N  
UL, CSA  
UL, CSA  
UL, CSA  
D4A-3E14N  
D4A-3E15N  
D4A-3E16N  
Note: 1. The lever is not included with the Roller Level Models. Select the lever from those listed in this data sheet and order it separately (refer  
to Levers on pages 92 and 93).  
2. The Maintained Switches have a lock mechanism for the switch operation and thus use a Fork Lever Lock.  
3. Switches are also available with @1/2-14 NPT conduits. The model numbers correspond as follows:  
G 1/2 Conduits 1/2-14 NPT Conduits  
D4A-3@@@N D4A-1@@@N  
D4A-4@@@N D4A-2@@@N  
4. Switches are also available with fluoro-rubber seals for higher resistance to chemicals. (The operating temperature range for these  
Switches, however, is 10 to 120°C.) Add “ -F” to the model number. (Example: D4A-3101N becomes D4A-3101N-F.) Ask your nearest  
OMRON representative for details.  
General-purpose Limit Switch D4A-@N  
75  
DPDT, Double-break Switches  
Receptacle box  
Indicator  
G 1/2 Conduit  
Without indicator  
With neon lamp indicator  
(AC)  
With LED indicator (DC)  
Actuator  
Model  
Approved  
standards  
Model  
Approved  
standards  
Model  
Roller lever  
(See note 1.)  
Standard  
D4A-4501N  
D4A-4502N  
D4A-4503N  
D4A-4504N  
D4A-4505N  
D4A-4717N  
D4A-4918N  
D4A-4506N  
UL, CSA  
D4A-4L01N  
UL, CSA  
D4A-4P01N  
High-sensitivity  
Low-torque  
UL, CSA  
UL, CSA  
UL, CSA  
UL, CSA  
UL, CSA  
UL, CSA  
UL, CSA  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
---  
High-sensitivity, Low-  
torque  
Maintained  
(See note 2.)  
Sequential operation  
Center neutral opera-  
tion  
Side plunger  
Standard  
Vertical roller  
Horizontal roller  
Adjustable  
D4A-4507-VN UL, CSA  
D4A-4507-HN UL, CSA  
D4A-4508N  
UL, CSA  
Top plunger  
Flexible rod  
Standard  
Roller  
D4A-4509N  
D4A-4510N  
UL, CSA  
UL, CSA  
---  
---  
---  
D4A-4L10N  
UL, CSA  
D4A-4P10N  
Adjustable  
Spring wire  
D4A-4511N  
D4A-4512N  
UL, CSA  
UL, CSA  
---  
---  
---  
---  
---  
---  
Plastic rod  
Cat whisker  
Coil spring  
D4A-4514N  
D4A-4515N  
D4A-4516N  
UL, CSA  
UL, CSA  
UL, CSA  
---  
---  
---  
---  
---  
---  
---  
---  
---  
Note: 1. The lever is not included with the Roller Level Models. Select the lever from those listed in this data sheet and order it separately (refer  
to Levers on pages 92 and 93).  
2. The Maintained Switches have a lock mechanism for the switch operation and thus use a Fork Lever Lock.  
3. Switches are also available with @1/2-14 NPT conduits. The model numbers correspond as follows:  
G 1/2 Conduits 1/2-14 NPT Conduits  
D4A-3@@@N D4A-1@@@N  
D4A-4@@@N D4A-2@@@N  
4. Switches are also available with fluoro-rubber seals for higher resistance to chemicals. (The operating temperature range for these  
Switches, however, is 10 to 120°C.) Add “ -F” to the model number. (Example: D4A-4501N becomes D4A-4501N-F.) Ask your nearest  
OMRON representative about delivery times and prices.  
76  
General-purpose Limit Switch D4A-@N  
Individual Parts  
Replacement of Parts  
Because the D4A-@N employs block mounting construction, the  
switch box, receptacle, and operating head may be ordered as a  
complete assembly or individually as replacement parts.  
Receptacle  
Switch box  
Head  
Lever  
Levers for Roller Lever Switches are  
optionally available. Select the lever from  
those listed in this datasheet and order  
(refer to Levers on pages 92 and 93).  
D4A-1101N  
D4A-1000N  
D4A-0100N  
D4A-0001N  
Receptacle Box  
Type  
Appearance  
1/2-14NPT conduit (See note 2.)  
G1/2 conduit (See note 1.)  
Model  
Approved  
standards  
Model  
Approved  
standards  
SPDT  
D4A-1000N UL, CSA  
D4A-3000N  
UL, CSA  
double-  
break  
DPDT  
D4A-2000N UL, CSA  
D4A-4000N  
UL, CSA  
double-  
break  
Note: 1. M6-screw mounting (standard mounting)  
2. 10-32UNF-screw mounting (standard mounting)  
Switch Box  
Type  
Appearance  
Without indicator  
With neon lamp indicator  
(AC)  
With LED  
indicator (DC)  
Model  
Approved  
standards  
Model  
Approved  
standards  
Model  
SPDT  
D4A-0100N  
UL, CSA  
D4A-0300N  
UL, CSA  
D4A-0E00N  
double-break  
(Without indicator lamp)  
DPDT  
double-break  
Simultaneous  
operation  
D4A-0500N  
UL, CSA  
UL, CSA  
UL, CSA  
D4A-0L00N  
---  
---  
---  
D4A-0P00N  
Sequential oper- D4A-0700N  
ation  
---  
---  
---  
---  
Center neutral D4A-0900N  
operation  
(Without indicator lamp)  
General-purpose Limit Switch D4A-@N  
77  
Heads  
Type  
Appearance  
D4A-0001N  
Approved standards  
Roller lever  
(See note 1.)  
UL, CSA  
Standard:  
High-sensitivity:  
Low torque:  
D4A-0002N  
D4A-0003N (see note 2)  
D4A-0017N (see note 3)  
D4A-0018N (see note 3)  
Sequential operation:  
Center neutral operation:  
UL, CSA  
UL, CSA  
Maintained:  
D4A-0005N  
Side plunger  
Top plunger  
Standard:  
Horizontal roller: Vertical roller:  
D4A-0007-VN  
Side adjustable:  
D4A-0008N  
D4A-0006N D4A-0007-HN  
UL, CSA  
UL, CSA  
Standard:  
D4A-0009N  
Roller plunger:  
D4A-0010N  
Plunger adjustable:  
D4A-0011N  
Flexible rod  
Spring wire  
D4A-0012N  
Plastic rod  
D4A-0014N  
Cat whisker  
D4A-0015N  
Coil spring  
D4A-0016N  
Note: 1. Levers for Roller Lever Switches are optionally available. Select the lever from those listed in this data sheet and order (refer to Levers  
on pages 92 and 93).  
2. The D4A-C00 adjustable roller lever is too heavy and long for these heads and it should not be used or mechanical malfunction will result.  
3. These heads cannot be used for double break operations.  
Levers  
Actuator type  
Roller Lever  
Model  
D4A-A00  
D4A-A10  
D4A-A20  
D4A-A30  
D4A-B06  
D4A-C00  
D4A-D00  
D4A-F00  
D4A-E30  
D4A-E20  
D4A-E10  
D4A-E00  
Adjustable Roller Lever  
Resin Loop Lever  
Fork Lever Lock  
Note: Refer to page 92 for Lever shapes and applicable models.  
78  
General-purpose Limit Switch D4A-@N  
Specifications  
Approved Standards  
Agency  
Standard  
File No.  
E76675  
UL  
UL508  
CSA  
CSA C22.2 No. 14  
GB14048.5  
LR45746  
CCC (CQC)  
2003010305077615  
Note: Ask your OMRON representative for information on approved models.  
Approved Standard Ratings  
UL/CSA  
A600  
D4A-@1@@N (SPDT, Double-break, Without Indicator)  
Rated voltage  
Carry current  
Current  
Volt-amperes  
Make  
Break  
Make  
7,200 VA  
Break  
120 VAC  
10 A  
60 A  
30 A  
15 A  
12 A  
6 A  
3 A  
720 VA  
240 VAC  
480 VAC  
600 VAC  
1.5 A  
1.2 A  
A300  
D4A-@3@@N (SPDT, Double-break, With Neon Lamp)  
Rated voltage  
Carry current  
Current  
Volt-amperes  
Make  
Break  
Make  
7,200 VA  
Break  
120 VAC  
240 VAC  
10 A  
60 A  
30 A  
6 A  
3 A  
720 VA  
B600  
D4A-@5@@N (DPDT, Double-break, Simultaneous Operation)  
D4A-@7@@N (DPDT, Double-break, Sequential Operation)  
D4A-@9@@N (DPDT, Double-break, Center Neutral Operation)  
Rated voltage  
Carry current  
Current  
Volt-amperes  
Make  
Break  
Make  
3,600 VA  
Break  
120 VAC  
5 A  
30 A  
15 A  
7.5 A  
6.0 A  
3 A  
360 VA  
240 VAC  
480 VAC  
600 VAC  
1.5 A  
0.75 A  
0.6 A  
CCC (GB14048.5)  
Applicable category and ratings  
AC-15 2 A/125 VAC  
General-purpose Limit Switch D4A-@N  
79  
General Ratings  
Type  
Rated voltage  
Non-inductive load  
Resistive load Lamp load  
NC NO NC NO  
10 A  
Inductive load  
Inductive load Motor load  
NC NO NC NO  
10 A  
SPDT double-break 125 VAC (See note 5.) 10 A  
(with/without  
indicator)  
3 A  
1.5 A  
1 A  
5 A  
2.5 A  
1.5 A  
0.8 A  
0.5 A  
250 VAC (See note 5.) 10 A  
10 A  
10 A  
1 A  
2 A  
10 A  
3 A  
3 A  
480 VAC  
600 VAC  
8 VDC  
10 A  
3 A  
1.5 A  
1 A  
0.8 A  
0.5 A  
3 A  
1.5 A  
1 A  
1.5 A  
10 A  
10 A  
6 A  
10 A  
10 A  
6 A  
6 A  
6 A  
14 VDC  
30 VDC  
6 A  
3 A  
6 A  
4 A  
3 A  
4 A  
125 VDC (See note 5.) 0.8 A  
250 VDC (See note 5.) 0.4 A  
0.2 A  
0.1 A  
2 A  
0.2 A  
0.1 A  
0.8 A  
0.4 A  
4 A  
0.2 A  
0.1 A  
3 A  
DPDT double-break 125 VAC  
5 A  
(without indicator)  
250 VAC  
480 VAC  
600 VAC  
14 VDC  
30 VDC  
125 VDC  
250 VDC  
3 A  
1 A  
2 A  
1.5 A  
0.8 A  
0.5 A  
3 A  
1.5 A  
1 A  
0.5 A  
0.4 A  
2 A  
1 A  
0.7 A  
4 A  
5 A  
3 A  
1 A  
2 A  
1.5 A  
0.1 A  
0.05 A  
3 A  
0.4 A  
0.2 A  
5 A  
0.1 A  
0.05 A  
2 A  
0.4 A  
0.2 A  
4 A  
DPDT double-break 125 VAC  
(with indicator)  
250 VAC  
3 A  
1 A  
2 A  
1.5 A  
---  
12 VDC  
24 VDC  
48 VDC  
5 A  
---  
---  
---  
3 A  
1 A  
Type  
SPDT, double-break  
Without indicator With indicator  
30 A max.  
20 A max.  
DPDT, double-break  
Without indicator  
With indicator  
Inrush  
current  
Normally closed  
Normally open  
Note: 1. The above current ratings are for steady-state current.  
2. Inductive loads have a power factor of 0.4 min. (AC) and a time constant of 7 ms max. (DC).  
3. Lamp loads have an inrush current of 10 times the steady-state current.  
4. Motor loads have an inrush current of 6 times the steady-state current.  
5. For those with indicators, refer to the following rated voltages.  
Ratings for Indicators  
Classification  
SPDT  
double-break  
Indicator  
Neon lamp  
Model  
D4A-0300N  
Rated voltage  
125 VAC, 250 VAC  
12 VDC  
Carry current  
Approx. 0.47 mA  
Approx. 3.2 mA  
Approx. 4 mA  
Internal resistance  
150 kΩ  
2.2 kΩ  
4.7 kΩ  
15 kΩ  
22 kΩ  
240 kΩ  
---  
LED  
D4A-0E00N  
24 VDC  
24 VDC  
Approx. 1.3 mA  
Approx. 2 mA  
48 VDC  
DPDT  
double-break  
Neon lamp  
LED  
D4A-0L00N  
D4A-0P00N  
125 VAC, 250 VAC  
48 VDC  
Approx. 0.28 mA  
Approx. 1.4 mA  
80  
General-purpose Limit Switch D4A-@N  
Characteristics  
Degree of protection  
IP67  
Durability (See note 3.)  
Mechanical: SPDT, double-break, roller lever: 50,000,000 operations min. (See note 2.)  
DPDT, double-break, roller lever: 30,000,000 operations min. (See note 2.)  
Electrical: SPDT, double-break: for 125 VAC, 10 A resistive load: 1,000,000 operations min.  
DPDT, double-break: for 125 VAC, 5 A resistive load: 750,000 operations min.  
Operating speed  
1 mm to 2 m/s (for D4A-3101N roller lever model)  
Operating frequency  
Mechanical: 300 operations/minute  
Electrical: 30 operations/minute  
Rated frequency  
50/60 Hz  
Insulation resistance  
100 Mmin. (at 500 VDC) between terminals of the same polarity, between current-carrying metal parts and  
ground, and between each terminal and non-current-carrying metal part  
Contact resistance  
Temperature rise  
Dielectric strength  
25 mmax. (initial value)  
50°C max.  
1,000 VAC, 50/60 Hz for 1 min. between terminals of same polarity  
2,200 VAC, 50/60 Hz for 1 min. between current-carrying metal parts and ground, and between each terminal  
and non-current-carrying metal part (See note 4.)  
Pollution degree  
3
(operating environment)  
Protection against electric  
shock  
Class I (with grounding terminal)  
Vibration resistance  
Shock resistance  
Malfunction: 10 to 55 Hz, 1.5-mm double amplitude (See note 5.)  
Destruction: 1,000 m/s2 min.  
Malfunction: SPDT, double-break, roller lever: 600 m/s2 min. (See note 5.)  
DPDT, double-break, roller lever: 300 m/s2 min. (See note 5.)  
Ambient operating humidity  
Weight  
35% to 95% (with no icing)  
Approx. 290 g (for D4A-3101N roller lever model)  
Note: 1. The above figures are initial values.  
2. Excluding maintained models.  
3. The values are calculated at an operating temperature of 5°C to 35°C, and an operating humidity of 40% to 70%. Contact your OMRON  
sales representative for more detailed information on other operating environments.  
4. 1,500 VAC is applied to the indicator lamp type.  
5. Not including wobble levers (cat whisker, plastic rod, coil spring, and spring wire types).  
Type  
Roller lever  
Plunger, flexible rod  
(See note 5-2.)  
With indicator  
– 10°C to 80°C  
Fluoro-rubber seal  
(See note 5-1.)  
Ambient temperature  
– 40°C to 100°C  
– 20°C to 100°C  
– 10°C to 120°C  
5-1. Excluding low-torque and high-sensitivity models.  
5-2. Including roller lever low-torque and high-sensitivity operating models.  
General-purpose Limit Switch D4A-@N  
81  
Connections  
Contact Forms (Switch Boxes)  
STDP Double-break Switches  
Type  
Contact model  
Operating pattern  
Without indicator  
D4A-0100N  
With neon lamp indicator  
(See note.)  
With LED indicator  
(See note.)  
1NC/1NO snap-action  
D4A-0300N  
D4A-0E00N  
Za  
Lamp  
unit  
Za  
Lamp  
unit  
Za  
4
3
2
4
1
3
2
4
1
3
2
1
Energized  
Lamp  
unit  
Lamp  
unit  
1-2  
3-4  
Lamp Unit Internal Circuits Lamp Unit Internal Circuits  
Stroke  
Neon lamp  
LEDs  
Bridge rectifier  
Resistor  
Resistor  
Note: Switches with indicators are factory-set to light when the switch is not operated.  
DTDP Double-break Switches  
Each of these Switches can be used to replace two limit switches in applications, such as high-speed control in machine tools and switching motors  
between forward and reverse, that previously required 2 limit switches. This simplifies wiring, saves space, and reduces costs.  
Type  
Contact model  
Operating pattern  
Remarks  
Without indicator  
With neon lamp With LED indicator  
indicator  
(See note.)  
(See note.)  
2NC/2NO snap-action, D4A-0500N  
simultaneous opera-  
tion  
D4A-0L00N  
D4A-0P00N  
Head is compatible  
with double-break  
head. Can be switched  
for operation on both  
sides of actuator.  
Energized  
1-2  
3-4  
5-6  
7-8  
Stroke  
2NC/2NO snap-action, D4A-0700N  
sequential operation  
(2-step operation)  
---  
---  
---  
---  
Use the D4A-0017N  
Special Head.  
Energized  
1-2  
3-4  
5-6  
7-8  
Stroke  
2NC/2NO snap-action, D4A-0900N  
central neutral opera-  
tion  
Use the D4A-0018N  
Special Head.  
Energized  
1-2  
3-4  
5-6  
7-8  
Left  
Free  
Right  
operation position operation  
82  
General-purpose Limit Switch D4A-@N  
Item  
Without indicator  
D4A-0500N  
D4A-0700N  
D4A-0900N  
With neon lamp indicator (See note.)  
D4A-0L00N  
With LED indicator (See note.)  
D4A-0P00N  
Contact  
form  
Lamp  
unit  
Za  
Lamp  
unit  
Lamp  
unit  
Lamp  
unit  
Za  
Za  
Za  
4
1
3
2
8
5
7
6
4
1
3
2
8
5
7
6
Za  
4
3
1
8
2
7
Lamp  
unit  
Lamp  
unit  
Lamp  
unit  
Lamp  
unit  
5
6
Lamp unit ---  
internal cir-  
cuit  
Constant  
current  
diode  
Neon lamp  
Resistor  
Bridge rectifier  
LED  
Note: Switches with indicators are factory-set to light when the switch is not operated, but the setting can be changed to light for operation (dotted  
lines).  
Nomenclature  
DPDT Double-break  
Head  
With the Roller Lever and Side Plunger Switches, the  
Roller  
direction of the switch head can be varied to any of the four  
directions by loosing the roller lever switch screws at the  
four corners of the head.  
The roller actuator is made of hardened  
stainless steel and excels in resistance to  
wear.  
The Roller Lever Switch  
employs a system which  
allows selection of the  
operation of only one side  
(left or right) or both sides  
without use of any tools.  
Lever  
With the Roller Lever Switch, the lever can be  
installed anywhere in a 360° range (180° if the  
lever is reversed and attached to the shaft).  
Oil Seal  
Improved sealing property is ensured with a  
double-seal construction (a oil seal plus an  
X-ring seal).  
Operating Position Mark  
(arrow)  
Bearings  
The copper-alloy bearings ensure long life ex-  
pectancy.  
Switch Box  
Boasts long life expectancy (50 million mechanical  
operations or more with the 2-pole Double-break  
Switches and 30 million mechanical operations or  
more with the DPDT Double-break Switches).  
Receptacle  
The plug-in type receptacle provides adequate  
space for wiring.  
Ground Terminal Screw  
A ground terminal is provided to enhance safety.  
Conduit Opening  
G 1/2 conduit threads featuring high sealing  
property are used. (Consult your OMRON  
representative for details on SC connectors).  
A terminal box with 1/2-14NPT conduit threads  
Switch Box Screw  
Sealed Gasket  
is also available on request.  
A Phillips screw is used to secure the switch  
housing for ease of use, and features a meas-  
ure to prevent the screw from coming off.  
The employed full-cover method  
prevents the gasket from direct  
exposure to oil or water spray.  
Note: 1. NBR is used in rubber components.  
2. Fluoro-rubber sealed types use fluoro-rubber.  
3. For Roller Levers, there is some lever play in the free position (about 2 mm), but this is due to the structure of the head and does not  
interfere with performance.  
General-purpose Limit Switch D4A-@N  
83  
Easy-maintenance Block Mounting  
Block mounting makes it possible to easily assemble or disassemble  
the head, switch body, and receptacle of the D4A-@N by tightening or  
loosening the attached screws.  
Head  
Actuator  
Switch box  
Receptacle  
Engineering Data  
Electrical Durability (SPDT Double-break)  
(Ambient temperature: 5°C to 35°C; ambient humidity: 40% to 70%)  
Operating frequencies:  
30 operations/min,  
cosφ = 1  
125 VAC  
Operating frequencies:  
30 operations/min,  
cosφ = 0.4  
125 VAC  
250 VAC  
250 VAC  
480 VAC  
480 VAC  
Switching current (A)  
Switching current (A)  
Electrical Durability (DPDT Double-break)  
Operating frequencies:  
30 operations/min,  
cosφ = 1  
Operating frequencies:  
30 operations/min,  
cosφ = 0.4  
125 VAC  
125 VAC  
250 VAC  
480 VAC  
250 VAC  
480 VAC  
Switching current (A)  
Switching current (A)  
84  
General-purpose Limit Switch D4A-@N  
Installation  
Operation  
Changing the Operating Direction  
The head of the side rotary type can be converted in seconds to CW,  
CCW, or both-way operation. Follow the procedures on the right  
hand side for conversion (not applicable to the Maintained, Sequen-  
tial Operating, Center Neutral Operating Switches).  
Operating Part (Rear of Head)  
Operating position  
arrow marks  
Procedures  
1. Dismount the head by loosening the four screws that secure it.  
2. Turn over the head to set the desired operation (CW, CCW, or  
both). The desired side can be selected by setting the mode  
selector knob shown in the figure. This knob is factory set to the  
“ CW+CCW” (both-way operation) position.  
3. When set to the CW position, the head rotates in clockwise direc-  
tion.  
When set to the CCW position, the head rotates in counterclock-  
wise direction.  
In either case, be sure to accurately align the arrow mark to the  
setting position.  
General-purpose Limit Switch D4A-@N  
85  
Head and Lever Positions  
The operating head can be positioned and locked in any of four 90° positions and a lever can lock in any position through 360° around the shaft of  
the Limit Switch. Furthermore, the lever can be reversed and attached to the shaft (refer to the figures below on the right hand side). Therefore the  
roller is compatible with a wide movement range of a dog. A Fork Lever Lock can be used with maintained models (D4A-0005N) only.  
Remove the head from the Switch by  
loosening the screws (the screws can be  
loosened but not removed from the  
head).  
The operating head can be  
positioned and locked in  
any of four 90° positions.  
The lever can lock in any position through 360° around  
the shaft. The lever can be reversed and attached to the  
shaft, in which case the switching operation should com-  
plete in a range of 0° to 180°.  
180° operating  
position  
360°  
operating  
position  
Four, M4 x 12  
D4A-E00  
D4A-E10  
D4A-E30  
There are four kinds of fork lever locks. The position of each  
roller is different. It is possible to use D4A-E00 through  
D4A-E30 levers instead, if they are reversed before attaching.  
They can be used with D4A-@@05N models only.  
D4A-E20  
By loosening the Allen-head bolt on an adjustable roller lever  
or rod lever, the length of the lever can be adjusted.  
D4A-C00  
D4A-D00  
Loosen the screw  
to adjust the  
length of the rod.  
Loosen the bolt to  
adjust the length  
of the lever.  
Adjustable  
between 33  
and 91 mm  
Lighting Mode Selection of Indicators  
The lighting mode of the operation indicator can be changed easily between two modes: lighting when the Switch is operating and lighting when  
the Switch is not operating.  
Lights When Not Operating  
(See note 1.)  
Lights When Operating  
(See note 2.)  
Power supply  
Internal circuits  
Power supply  
Built-in switch  
Note: 1. The lamp is lit when the actuator is at the free position.  
The lamp will be off when the contacts of the Limit  
Switch have been actuated and snapped to each other  
at the operating position.  
4
1
3
2
3
4
Load  
Load  
2. The lamp is lit when the contacts have been released  
and snapped only from the operating position.  
2
1
Built-in switch  
Internal circuits  
86  
General-purpose Limit Switch D4A-@N  
Change the lighting mode as follows:  
Push the claw securing  
the lamp section to the  
right (do not push  
strongly).  
Remove the  
lamp section.  
Mount the lamp section  
so that legend "NC-ON"  
or "NO-ON" will appear  
in the display window.  
Note: In either case, the lamp will  
not light when the load is ON.  
Lever Position  
D4A-A00  
D4A-A10  
67 to 72.5  
D4A-A20  
73 to 78.5  
D4A-A30  
86.9 to 92.4  
59 to 64.5  
25 to  
30.5  
52.9 to 58.4  
38.9 to 44.4  
44.9 to 50.4  
Nameplate  
The whole switch model without  
lever is printed.  
The type of switch box is printed.  
(The type is also indicated on the  
head and receptacle.)  
Compatibility with D4A-@  
The D4A-@N is compatible with the D4A-@ when the following accessories are attached to the D4A-@N.  
D4A-@  
Receptacle box  
D4A-@N  
Switch box  
D4A-@N  
Head  
Note: The D4A-@N without the above accessories is not compatible with the D4A-@.  
General-purpose Limit Switch D4A-@N  
87  
Dimensions  
Note: 1. All units are in millimeters unless otherwise indicated.  
2. Insert the model number code in @ for the switch body.  
3. Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions.  
Roller Lever Switches  
Note: Levers of the side rotary type are optionally available.  
Standard  
D4A-1@01N, D4A-2@01N  
High-sensitivity  
D4A-1@02N, D4A-2@02N  
62.5  
48  
Four, M4 (length: 12)  
screws for head  
21  
7.25 dia.  
24.5  
34  
Low Torque  
19  
D4A-1@03N, D4A-2@03N  
5.2+0.2 dia.  
0
mounting holes  
High-sensitivity/Low Torque  
D4A-1@04N, D4A-2@04N  
Sequential Operation  
75.5  
2.6R  
59.5 0.2  
70.5  
6
0.8  
Two, No.10-32UNF  
(depth: 10) screws for  
back-mounting  
D4A-2@17N  
Center Neutral Operating  
D4A-2@18N  
5.2  
2.6R  
Two, M5 (length: 20)  
screws for box  
16.5  
28  
29.5  
44  
29.4 0.2  
42  
1/2-14NPT  
conduit  
62  
47.5  
21  
Four, M4 (length: 12)  
screws for head  
Maintained  
7.25 dia.  
D4A-1@05N, D4A-2@05N  
38.1  
19.1  
5.2+0.2 dia.  
0
mounting holes  
75.5  
2.6R  
59.5 0.2  
70.5  
6
0.8  
Two, No.10-32UNF  
(depth: 10) screws for  
back-mounting  
Two, M5 (length: 20)  
screws for box  
5.2  
2.6R  
16.5  
28  
29.5  
29.4 0.2  
42  
1/2-14NPT  
conduit  
44  
SPDT Double-break  
Model  
OF max.  
RF min.  
PT max.  
OT min.  
MD max.  
D4A-1@01N  
0.39 N·m  
D4A-1@02N  
0.39 N·m  
D4A-1@03N  
0.2 N·m  
D4A-1@04N  
0.2 N·m  
D4A-1@05N  
0.39 N·m  
0.05 N·m  
15° (12°)  
70°  
0.05 N·m  
7° (6°)  
75°  
---  
---  
---  
15° (12°)  
70°  
7° (6°)  
75°  
65° (60°)  
20°  
5° (4°)  
4° (3°)  
5° (4°)  
4° (3°)  
35° (30°)  
DPDT Double-break  
Model  
OF max.  
RF min.  
PT max.  
D4A-2@01N  
0.39 N·m  
D4A-2@02N  
D4A-2@03N  
0.2 N·m  
D4A-2@04N  
0.2 N·m  
D4A-2@05N  
0.39 N·m  
---  
D4A-2@17N  
0.39 N·m  
0.05 N·m  
D4A-2@18N  
0.39 N·m  
0.39 N·m  
0.05 N·m  
7° (6°)  
0.05 N·m  
---  
---  
0.02 N·m  
15° (12°)  
15° (12°)  
7° (6°)  
65° (60°)  
1-stage: 12° (10°) 19° (15°)  
2-stage: 20° (17°)  
OT min.  
70°  
75°  
70°  
75°  
20°  
65°  
65°  
MD max.  
7° (6°)  
5° (4°)  
7° (6°)  
5° (4°)  
35° (30°)  
6° (5°)  
5° (4°)  
The figures in the parentheses are average values.  
88  
General-purpose Limit Switch D4A-@N  
Side Plunger Switches  
Standard  
D4A-1@06N, D4A-2@06N  
Stainless  
steel  
plunger  
Four, M4 (length: 12)  
screws for head  
PT  
21  
OP  
21.5  
31.1  
10 dia.  
19  
5.2+0.2 dia.  
0
mounting holes  
75.5  
59.5 0.2  
70.5  
2.6R  
6
0.8  
Two, No.10-32UNF  
(depth: 10) screws for  
back-mounting  
Two, M5 (length: 20)  
screws for box  
5.2  
2.6R  
16.5  
28  
29.4 0.2  
42  
1/2-14NPT  
conduit  
29.5  
44  
Four, M4 (length: 12)  
screws for head  
Horizontal Roller  
D4A-1@07-HN, D4A-2@07-HN  
21  
OP  
PT  
21.5  
19  
31.1  
11 dia.x 5 stainless  
steel roller  
5.2+0.2 dia.  
0
mounting holes  
75.5  
59.5 0.2  
70.5  
2.6R  
6
0.8  
Two, No.10-32UNF  
(depth: 10) screws  
for back-mounting  
5.2  
2.6R  
Two, M5 (length: 20)  
screws for box  
16.5  
28  
29.4 0.2  
42  
29.5  
44  
1/2-14NPT  
conduit  
Vertical Roller  
D4A-1@07-VN, D4A-2@07-VN  
Four, M4 (length: 12)  
screws for head  
21  
OP  
PT  
21.5  
19  
31.1  
5.2+0.2 dia.  
mounting holes  
11 dia.x 5 stainless  
steel roller  
0
75.5  
59.5 0.2  
2.6R  
6
70.5  
0.8  
2.6R  
Two, No.10-32UNF  
(depth: 10) screws for  
back-mounting  
5.2  
Two, M5 (length: 20)  
screws for box  
16.5  
28  
29.4 0.2  
42  
29.5  
44  
1/2-14NPT  
conduit  
Adjustable  
D4A-1@08N, D4A-2@08N  
M5 x 0.8 (length: 14  
Four, M4 (length: 12) Allen-head bolt  
screws for head  
21  
PT  
OP  
21.5  
31.1  
19  
5.2+0.2 dia.  
0
mounting holes  
75.5  
2.6R  
59.5 0.2 70.5  
6
0.8  
2.6R  
Two, No.10-32UNF  
(depth: 10) screws for  
back-mounting  
5.2  
Two, M5 (length: 20)  
screws for box  
16.5  
28  
29.5  
29.4 0.2  
42  
1/2-14NPT  
conduit  
44  
Model  
SPDT double-break  
D4A-1@06N D4A-1@07-HN D4A-1@07-VN D4A-1@08N  
DPDT double-break  
D4A-2@06N D4A-2@07-HN D4A-2@07-VN D4A-2@08N  
OF max.  
RF min.  
PT max.  
OT min.  
MD max.  
OP  
19.61 N  
19.61 N  
19.61 N  
19.61 N  
19.61 N  
19.61 N  
19.61 N  
19.61 N  
4.90 N  
4.90 N  
4.90 N  
4.90 N  
4.90 N  
4.90 N  
4.90 N  
4.90 N  
2.4 mm  
5.1 mm  
0.6 mm  
34±0.8 mm  
2.4 mm  
5.1 mm  
0.6 mm  
44±0.8 mm  
2.4 mm  
5.1 mm  
0.6 mm  
44±0.8 mm  
2.4 mm  
5.1 mm  
0.6 mm  
2.4 mm  
5.1 mm  
1.0 mm  
2.4 mm  
5.1 mm  
1.0 mm  
44±0.8 mm  
2.4 mm  
5.1 mm  
1.0 mm  
44±0.8 mm  
2.4 mm  
5.1 mm  
1.0 mm  
41 to 47.5 mm 34±0.8 mm  
41 to 47.5 mm  
General-purpose Limit Switch D4A-@N  
89  
Top Plunger Switches  
Standard  
D4A-1@09N, D4A-2@09N  
Stainless steel plunger  
PT  
10 dia.  
21  
Four, M4 (length: 12)  
screws for head  
27 OP  
5.2+00.2 dia.  
mounting holes  
75.5  
59.5 0.2 70.5  
2.6R  
6
0.8  
Two, No.10-32UNF  
(depth: 10) screws for  
back-mounting  
5.2  
Two, M5 (length: 20)  
screws for box  
2.6R  
16.5  
28  
29.5  
29.4 0.2  
42  
1/2-14NPT  
conduit  
44  
21  
Roller Plunger  
11 dia. x 5 stainless steel roller  
D4A-1@10N, D4A-2@10N  
PT  
Four, M4 (length: 12)  
screws for head  
OP  
27  
5.2+0.2 dia.  
0
mounting holes  
75.5  
2.6R  
70.5  
59.5 0.2  
6
0.8  
Two, No.10-32UNF  
(depth: 10) screws for  
back-mounting  
5.2  
Two, M5 (length: 20)  
screws for box  
2.6R  
16.5  
28  
29.5  
29.4 0.2  
42  
1/2-14NPT  
conduit  
44  
Adjustable  
D4A-1@11N, D4A-2@11N  
M5 x 0.8 (length:14) Allen-head bolt  
PT  
21  
Four, M4 (length: 12)  
screws for head  
OP  
27  
5.2+0.2 dia.  
0
mounting holes  
75.5  
2.6R  
59.5 0.2  
70.5  
6
0.8  
Two, No.10-32UNF  
(depth: 10) screws for  
back-mounting  
5.2  
Two, M5 (length: 20)  
screws for box  
2.6R  
16.5  
28  
29.4 0.2  
42  
29.5  
1/2-14NPT  
conduit  
44  
Model  
SPDT double-break  
D4A-1@10N  
17.65 N  
DPDT double-break  
D4A-2@10N  
17.65 N  
D4A-1@09N  
17.65 N  
D4A-1@11N  
17.65 N  
D4A-2@09N  
17.65 N  
D4A-2@11N  
17.65 N  
OF max.  
RF min.  
PT max.  
OT min.  
MD max.  
OP  
4.90 N  
4.90 N  
4.90 N  
4.90 N  
4.90 N  
4.90 N  
1.6 mm  
5.1 mm  
0.4 mm  
46±0.8 mm  
1.6 mm  
1.6 mm  
1.6 mm  
5.1 mm  
1.0 mm  
46±0.8 mm  
1.6 mm  
1.6 mm  
5.1 mm  
5.1 mm  
5.1 mm  
5.1 mm  
0.4 mm  
0.4 mm  
1.0 mm  
1.0 mm  
56±0.8 mm  
55.5 to 62 mm  
56±0.8 mm  
55.5 to 62 mm  
90  
General-purpose Limit Switch D4A-@N  
Flexible Rod Switches  
(see note 1)  
PT  
Spring Wire  
D4A-1@12N, D4A-2@12N  
8 dia. max.  
1.8 dia.  
(see note 2)  
Stainless steel wire rod  
330  
(287)  
21  
Four, M4 (length: 12)  
screws for head  
88  
27  
5.2+00.2 dia.  
mounting  
holes  
59.5 0.2 70.5  
75.5  
2.6R  
6
0.8  
Two, No.10-32UNF  
16.5 (depth: 10) screws for  
Two, M5 (length: 20)  
screws for box  
5.2  
2.6R  
28  
29.5  
back-mounting  
29.4 0.2  
42  
1/2-14NPT  
conduit  
44  
(see note 1)  
PT  
Plastic Rod  
D4A-1@14N, D4A-2@14N  
(see note 2)  
7 dia.  
Plastic rod  
(106.5)  
27  
21  
Four, M4 (length: 12)  
screws for head  
150  
88.5  
5.2+0.2 dia.  
0
mounting holes  
75.5  
2.6R  
70.5  
59.5 0.2  
6
0.8  
2.6R  
Two, No.10-32UNF  
(depth: 10) screws for  
back-mounting  
5.2  
Two, M5 (length: 20)  
screws for box  
16.5  
28  
29.4 0.2  
42  
29.5  
1/2-14NPT  
conduit  
44  
(see note 1)  
PT  
Cat Whisker  
D4A-1@15N, D4A-2@15N  
(see note 2)  
1.4 dia.  
Stainless steel wire rod  
(124)  
21  
Four, M4 (length: 12)  
screws for head  
170.5  
93.5  
27  
5.2+0.2 dia.  
0
mounting  
holes  
75.5  
2.6R  
70.5  
59.5 0.2  
6
0.8  
2.6R  
Two, M5 (length: 20)  
screws for box  
Two, No.10-32UNF  
(depth: 10) screws for  
back-mounting  
5.2  
16.5  
28  
29.5  
29.4 0.2  
42  
1/2-14NPT  
conduit  
44  
Note: 1. The stainless rod can be operated from any direction except the axial direction (i.e., from the top).  
2. The optimum operating range of the stainless rod is within 1/3 of the entire length from the top end.  
General-purpose Limit Switch D4A-@N  
91  
Coil Spring  
D4A-1@16N, D4A-2@16N  
(see note 1)  
PT  
(see note 2)  
6.5 dia.  
Stainless steel coil spring  
(106.5)  
27  
150  
21  
Four, M4 (length: 12)  
screws for head  
5.2+0.2 dia.  
0
mounting holes  
75.5  
2.6R  
70.5  
59.5 0.2  
6
0.8  
Two, No.10-32UNF  
(depth: 10) screws for  
back-mounting  
Two, M5 (length: 20)  
screws for box  
5.2  
2.6R  
16.5  
28  
29.5  
29.4 0.2  
42  
1/2-14NPT  
conduit  
44  
Note: 1. The stainless rod can be operated from any direction except the axial direction (i.e., from the top).  
2. The optimum operating range of the stainless rod is within 1/3 of the entire length from the top end.  
Model  
SPDT double-break  
DPDT double-break  
D4A-1@12N  
D4A-1@14N  
D4A-1@15N  
D4A-1@16N  
D4A-2@12N  
D4A-2@14N  
D4A-2@15N  
D4A-2@16N  
OF max.  
PT max.  
0.98 N  
1.47 N  
0.98 N  
15° (5°)  
1.47 N  
15° (5°)  
15° (5°)  
15° (5°)  
Levers (for Roller Lever Switches)  
Note: No D4A-0003N or D4A-0004N head should be used with the adjustable roller lever or mechanical malfunctioning could result because the  
total weight of the adjustable roller lever is comparatively large. Use a standard-load head (D4A-0001N or D4A-0002N) instead.  
Roller Lever  
D4A-A00  
Roller Lever  
D4A-A10  
Roller Lever  
D4A-A20  
19.5  
11.5  
7.9  
19.1 dia.  
19.1 dia.  
19.1 dia.  
7.9  
7.9  
Stainless  
sintered  
roller  
Stainless  
sintered  
roller  
Stainless  
sintered  
roller  
38.1  
38.1  
38.1  
7.3 dia.  
7.3 dia.  
7.3 dia.  
M5 Allen bolt  
18  
M5 Allen bolt  
9
18  
9
M5 Allen bolt  
18  
9
16.5  
Roller Lever  
D4A-A30  
Roller Lever  
D4A-B06  
19.1 dia.  
7.9  
21  
15  
17.5 dia.  
(see  
note)  
(see note)  
38.1  
33.7  
7.3 dia.  
7.3 dia.  
18  
9
M5 Allen bolt  
18  
Note: Stainless sintered roller  
M5 Allen bolt  
9
39.4  
Note: Stainless sintered roller  
92  
General-purpose Limit Switch D4A-@N  
Adjustable Roller Lever  
Adjustable Rod Lever  
D4A-D00  
20  
10.5  
D4A-C00  
19.1 dia.  
7.9 14  
Stainless  
3 dia.  
sintered  
roller  
Stainless rod  
6.4 graduation  
150 max.  
(adjusta-  
ble)  
33 to 91  
(adjusta-  
ble)  
13  
7.3 dia.  
7.3 dia.  
160  
113  
M5 Allen bolt  
4.5  
M5 Allen bolt  
4.5  
13  
18  
21.2  
7.5  
21.2  
2.5  
Fork Lever Lock  
D4A-E30  
Fork Lever Lock  
D4A-E20  
17  
7.9  
(2)  
17  
7.9  
Stainless  
sintered  
roller  
(2)  
Stainless  
sintered  
roller  
3.6  
3.6  
90°  
19.1 dia.  
19.1 dia.  
90°  
38.1  
38.1  
7.3 dia.  
7.3 dia.  
Stainless  
sintered  
roller  
Stainless sintered  
roller  
M5 Allen bolt  
M5 Allen bolt  
(See note.)  
9
38.1  
(See note.)  
38.1  
9
Fork Lever Lock  
D4A-E10  
Fork Lever Lock  
D4A-E00  
26  
26  
22  
(2)  
(2)  
22  
6.2  
6.2  
7.9  
3.6  
7.9  
Stainless  
sintered  
roller  
3.6  
Stainless  
sintered  
roller  
19.1 dia.  
90°  
19.1 dia.  
90°  
38.1  
38.1  
7.3 dia.  
7.3 dia.  
Stainless  
sintered  
roller  
Stainless  
sintered  
roller  
M5 Allen bolt  
(See note.)  
M5 Allen bolt  
9
38.1  
38.1  
(See note.)  
9
Nylon Loop Lever  
D4A-F00  
7.3 dia.  
M5 Allen bolt  
25 max.  
Nylon  
M5 Allen bolt  
Note: A Fork Lever Lock can be used with D4A-@@05N models only.  
General-purpose Limit Switch D4A-@N  
93  
Precautions  
Refer to the “Precautions for General-purpose Limit Switches (Including Multiple Limit Switches, Mechanical Touch Switches, High-precision  
Switches, Touch Switches, On-site Flexible Switches; Not Including Safety Switches)” on page 17.  
Tightening Torque  
To maintain the high sealing capability of the Limit Switch, tighten the  
screws for the head and switch box with the following torques:  
Correct Use  
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.  
Head (four 12-mm M4 screws): 1.2 to 1.4 N·m  
Switch box (two 20-mm M5 screws): 2.4 to 2.7 N·m  
Solderless Terminals  
The D4A-@N with DPDT double-break incorporates solderless  
terminals.  
Suitable  
Not Suitable  
Operation  
The operating methods, cam and dog shapes, operating frequency,  
and overtravel (OT) have a significant effect on the service life and  
accuracy of the Limit Switch. The shape of the cam should be as  
smooth as possible.  
Constantly subjecting a Switch to vibration or shock can result in  
wear, which can lead to contact interference with contacts, opera-  
tion 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.  
A marginal overtravel (OT) value should be set. The ideal value is the  
rated OT value x 0.7.  
The actuator should not be remodeled to change the operating  
position.  
Connectors  
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 con-  
tacts, 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.  
To satisfy IP67, apply sealing tape to the connector conduit.  
Appropriate outer diameter of cables is 5.5 to 14 dia.  
Use OMRON’ s SC@- M Series.  
Tighten the Connectors to a torque of 1.8 to 2.2 N·m.  
Mounting  
Maintenance and Repair  
The user must not maintain or repair equipment incorporating any  
D4A-N model. Contact the manufacturer of the equipment for any  
maintenance or repairs required.  
Model  
1/2-14NPT Conduit  
D4A-1@@@N  
D4A-2@@@N  
Two, 5.2+0.2 dia. holes  
Front Mounting  
0
or M5 tapped holes  
Tightening Torque  
A loose screw may cause malfunctions. Be sure to tighten each  
screw to the proper tightening torque as shown in the table.  
59.5 0.15  
29.4 0.15  
Two, 6.2+0.2 dia. holes  
Rear Mounting  
(Rear View)  
0
(Recommended mount-  
ing screws: M6.  
Switch Box depth: 10.)  
59.5 0.15  
29.4 0.15  
94  
General-purpose Limit Switch D4A-@N  
No.  
Type  
Appropriate tightening  
torque  
1
Terminal screws (M3.5 screws) 0.78 to 0.88 N·m  
(including grounding terminals)  
2
3
4
Head mounting screws  
1.18 to 1.37 N·m  
2.35 to 2.75 N·m  
4.90 to 5.88 N·m  
Switch box mounting screws  
Body mounting screws  
(See note.)  
5
6
Connectors  
1.77 to 2.16 N·m  
2.45 to 2.65 N·m  
Actuator mounting screws  
Note: When using M5 Allen-head bolts, particularly when the head  
direction has been changed, check the torque of each screw  
and make sure that the screws are free of foreign substances,  
and that each screw is tightened to the proper torque.  
General-purpose Limit Switch D4A-@N  
95  
Terms and Conditions of Sale  
1. Offer; Acceptance. These terms and conditions (these "Terms") are deemed  
part of all quotes, agreements, purchase orders, acknowledgments, price lists,  
catalogs, manuals, brochures and other documents, whether electronic or in  
writing, relating to the sale of products or services (collectively, the "Products")  
by Omron Electronics LLC and its subsidiary companies (“Omron”). Omron  
objects to any terms or conditions proposed in Buyer’s purchase order or other  
documents which are inconsistent with, or in addition to, these Terms.  
2. Prices; Payment Terms. All prices stated are current, subject to change with-  
out notice by Omron. Omron reserves the right to increase or decrease prices  
on any unshipped portions of outstanding orders. Payments for Products are  
due net 30 days unless otherwise stated in the invoice.  
ITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE PRODUCTS.  
BUYER ACKNOWLEDGES THAT IT ALONE HAS DETERMINED THAT THE  
PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR  
INTENDED USE. Omron further disclaims all warranties and responsibility of  
any type for claims or expenses based on infringement by the Products or oth-  
erwise of any intellectual property right. (c) Buyer Remedy. Omron’s sole obli-  
gation hereunder shall be, at Omron’s election, to (i) replace (in the form  
originally shipped with Buyer responsible for labor charges for removal or  
replacement thereof) the non-complying Product, (ii) repair the non-complying  
Product, or (iii) repay or credit Buyer an amount equal to the purchase price of  
the non-complying Product; provided that in no event shall Omron be responsi-  
ble for warranty, repair, indemnity or any other claims or expenses regarding  
the Products unless Omron’s analysis confirms that the Products were prop-  
erly handled, stored, installed and maintained and not subject to contamina-  
tion, abuse, misuse or inappropriate modification. Return of any Products by  
Buyer must be approved in writing by Omron before shipment. Omron Compa-  
nies shall not be liable for the suitability or unsuitability or the results from the  
use of Products in combination with any electrical or electronic components,  
circuits, system assemblies or any other materials or substances or environ-  
ments. Any advice, recommendations or information given orally or in writing,  
are not to be construed as an amendment or addition to the above warranty.  
See http://oeweb.omron.com or contact your Omron representative for pub-  
lished information.  
3. Discounts. Cash discounts, if any, will apply only on the net amount of invoices  
sent to Buyer after deducting transportation charges, taxes and duties, and will  
be allowed only if (i) the invoice is paid according to Omron’s payment terms  
and (ii) Buyer has no past due amounts.  
4. Interest. Omron, at its option, may charge Buyer 1-1/2% interest per month or  
the maximum legal rate, whichever is less, on any balance not paid within the  
stated terms.  
5. Orders. Omron will accept no order less than $200 net billing.  
6. Governmental Approvals. Buyer shall be responsible for, and shall bear all  
costs involved in, obtaining any government approvals required for the impor-  
tation or sale of the Products.  
7. Taxes. All taxes, duties and other governmental charges (other than general  
real property and income taxes), including any interest or penalties thereon, 14. Limitation on Liability; Etc. OMRON COMPANIES SHALL NOT BE LIABLE  
imposed directly or indirectly on Omron or required to be collected directly or  
indirectly by Omron for the manufacture, production, sale, delivery, importa-  
tion, consumption or use of the Products sold hereunder (including customs  
duties and sales, excise, use, turnover and license taxes) shall be charged to  
and remitted by Buyer to Omron.  
FOR SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,  
LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY  
WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS  
BASED IN CONTRACT, WARRANTY, NEGLIGENCE OR STRICT LIABILITY.  
Further, in no event shall liability of Omron Companies exceed the individual  
price of the Product on which liability is asserted.  
8. Financial. If the financial position of Buyer at any time becomes unsatisfactory  
to Omron, Omron reserves the right to stop shipments or require satisfactory 15. Indemnities. Buyer shall indemnify and hold harmless Omron Companies and  
security or payment in advance. If Buyer fails to make payment or otherwise  
comply with these Terms or any related agreement, Omron may (without liabil-  
ity and in addition to other remedies) cancel any unshipped portion of Prod-  
ucts sold hereunder and stop any Products in transit until Buyer pays all  
amounts, including amounts payable hereunder, whether or not then due,  
which are owing to it by Buyer. Buyer shall in any event remain liable for all  
unpaid accounts.  
their employees from and against all liabilities, losses, claims, costs and  
expenses (including attorney's fees and expenses) related to any claim, inves-  
tigation, litigation or proceeding (whether or not Omron is a party) which arises  
or is alleged to arise from Buyer's acts or omissions under these Terms or in  
any way with respect to the Products. Without limiting the foregoing, Buyer (at  
its own expense) shall indemnify and hold harmless Omron and defend or set-  
tle any action brought against such Companies to the extent based on a claim  
that any Product made to Buyer specifications infringed intellectual property  
rights of another party.  
9. Cancellation; Etc. Orders are not subject to rescheduling or cancellation  
unless Buyer indemnifies Omron against all related costs or expenses.  
10. Force Majeure. Omron shall not be liable for any delay or failure in delivery 16. Property; Confidentiality. Any intellectual property in the Products is the exclu-  
resulting from causes beyond its control, including earthquakes, fires, floods,  
strikes or other labor disputes, shortage of labor or materials, accidents to  
machinery, acts of sabotage, riots, delay in or lack of transportation or the  
requirements of any government authority.  
sive property of Omron Companies and Buyer shall not attempt to duplicate it  
in any way without the written permission of Omron. Notwithstanding any  
charges to Buyer for engineering or tooling, all engineering and tooling shall  
remain the exclusive property of Omron. All information and materials supplied  
by Omron to Buyer relating to the Products are confidential and proprietary,  
and Buyer shall limit distribution thereof to its trusted employees and strictly  
prevent disclosure to any third party.  
11. Shipping; Delivery. Unless otherwise expressly agreed in writing by Omron:  
a.Shipments shall be by a carrier selected by Omron; Omron will not drop ship  
except in “break down” situations.  
b. Such carrier shall act as the agent of Buyer and delivery to such carrier shall 17. Export Controls. Buyer shall comply with all applicable laws, regulations and  
constitute delivery to Buyer;  
licenses regarding (i) export of products or information; (iii) sale of products to  
“forbidden” or other proscribed persons; and (ii) disclosure to non-citizens of  
regulated technology or information.  
c. All sales and shipments of Products shall be FOB shipping point (unless oth-  
erwise stated in writing by Omron), at which point title and risk of loss shall  
pass from Omron to Buyer; provided that Omron shall retain a security inter- 18. Miscellaneous. (a) Waiver. No failure or delay by Omron in exercising any right  
est in the Products until the full purchase price is paid;  
d.Delivery and shipping dates are estimates only; and  
e.Omron will package Products as it deems proper for protection against nor-  
mal handling and extra charges apply to special conditions.  
and no course of dealing between Buyer and Omron shall operate as a waiver  
of rights by Omron. (b) Assignment. Buyer may not assign its rights hereunder  
without Omron's written consent. (c) Law. These Terms are governed by the  
law of the jurisdiction of the home office of the Omron company from which  
Buyer is purchasing the Products (without regard to conflict of law princi-  
ples). (d) Amendment. These Terms constitute the entire agreement between  
Buyer and Omron relating to the Products, and no provision may be changed  
or waived unless in writing signed by the parties. (e) Severability. If any provi-  
sion hereof is rendered ineffective or invalid, such provision shall not invalidate  
any other provision. (f) Setoff. Buyer shall have no right to set off any amounts  
against the amount owing in respect of this invoice. (g) Definitions. As used  
herein, “including” means “including without limitation”; and “Omron Compa-  
nies” (or similar words) mean Omron Corporation and any direct or indirect  
subsidiary or affiliate thereof.  
12. Claims. Any claim by Buyer against Omron for shortage or damage to the  
Products occurring before delivery to the carrier must be presented in writing  
to Omron within 30 days of receipt of shipment and include the original trans-  
portation bill signed by the carrier noting that the carrier received the Products  
from Omron in the condition claimed.  
13. Warranties. (a) Exclusive Warranty. Omron’s exclusive warranty is that the  
Products will be free from defects in materials and workmanship for a period of  
twelve months from the date of sale by Omron (or such other period expressed  
in writing by Omron). Omron disclaims all other warranties, express or implied.  
(b) Limitations. OMRON MAKES NO WARRANTY OR REPRESENTATION,  
EXPRESS OR IMPLIED, ABOUT NON-INFRINGEMENT, MERCHANTABIL-  
Certain Precautions on Specifications and Use  
1. Suitability of Use. Omron Companies shall not be responsible for conformity  
with any standards, codes or regulations which apply to the combination of the  
Product in the Buyer’s application or use of the Product. At Buyer’s request,  
ADDRESS THE RISKS, AND THAT THE OMRON’S PRODUCT IS PROP-  
ERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE  
OVERALL EQUIPMENT OR SYSTEM.  
Omron will provide applicable third party certification documents identifying 2. Programmable Products. Omron Companies shall not be responsible for the  
ratings and limitations of use which apply to the Product. This information by  
itself is not sufficient for a complete determination of the suitability of the Prod- 3. Performance Data. Data presented in Omron Company websites, catalogs  
user’s programming of a programmable Product, or any consequence thereof.  
uct in combination with the end product, machine, system, or other application  
or use. Buyer shall be solely responsible for determining appropriateness of  
the particular Product with respect to Buyer’s application, product or system.  
Buyer shall take application responsibility in all cases but the following is a  
non-exhaustive list of applications for which particular attention must be given:  
and other materials is provided as a guide for the user in determining suitabil-  
ity and does not constitute a warranty. It may represent the result of Omron’s  
test conditions, and the user must correlate it to actual application require-  
ments. Actual performance is subject to the Omron’s Warranty and Limitations  
of Liability.  
(i) Outdoor use, uses involving potential chemical contamination or electrical 4. Change in Specifications. Product specifications and accessories may be  
interference, or conditions or uses not described in this document.  
(ii) Use in consumer products or any use in significant quantities.  
(iii) Energy control systems, combustion systems, railroad systems, aviation  
systems, medical equipment, amusement machines, vehicles, safety equip-  
ment, and installations subject to separate industry or government regulations.  
(iv) Systems, machines and equipment that could present a risk to life or prop-  
erty. Please know and observe all prohibitions of use applicable to this Prod-  
uct.  
changed at any time based on improvements and other reasons. It is our prac-  
tice to change part numbers when published ratings or features are changed,  
or when significant construction changes are made. However, some specifica-  
tions of the Product may be changed without any notice. When in doubt, spe-  
cial part numbers may be assigned to fix or establish key specifications for  
your application. Please consult with your Omron’s representative at any time  
to confirm actual specifications of purchased Product.  
5. Errors and Omissions. Information presented by Omron Companies has been  
checked and is believed to be accurate; however, no responsibility is assumed  
for clerical, typographical or proofreading errors or omissions.  
NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS  
RISK TO LIFE OR PROPERTY OR IN LARGE QUANTITIES WITHOUT  
ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO  
Complete “Terms and Conditions of Sale” for product purchase and use are on Omron’s website  
at www.omron247.com under the “About Us” tab, in the Legal Matters section.  
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.  
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.  
OMRON ELECTRONICS LLC  
1 Commerce Drive  
Schaumburg, IL 60173  
Tel: 847.843.7900  
MEXICO SALES OFFICES  
OMRON ON-LINE  
Mexico, D.F.  
Ciudad Juárez  
Monterrey, N.L.  
Querétaro  
555.660.3144  
Global -  
www.omron.com  
656.623.7083  
818.377.4281  
442.135.4510  
USA -  
www.omron247.com  
For U.S. technical support or other  
inquiries: 800.556.6766  
BRAZIL SALES OFFICE  
Canada -  
www.omron.ca  
OMRON CANADA, INC.  
885 Milner Avenue  
Toronto, Ontario M1B 5V8  
Tel: 416.286.6465  
Sao Paulo  
55.11.2101.6310  
ARGENTINA SALES OFFICE  
Brazil -  
www.omron.com.br  
Cono Sur  
54.114.787.1129  
CHILE SALES OFFICE  
Latin America -  
www.espanol.omron.com  
Santiago  
562.206.4592  
OTHER LATIN AMERICAN SALES  
mela@omron.com  
Cat. No. X019-E1-07............................407............Specifications subject to change without notice..............Printed in USA  

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