WT28S [NKK]
Environmentally Sealed Toggles; 环境密封切换
| 型号： | WT28S |
| 厂家： | 
NIHON KAIHEIKI INDUSTRY CO. LTD. |
| 描述： | Environmentally Sealed Toggles |
| 文件： | 总6页 (文件大小：434K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Environmentally Sealed Toggles Series WT
Distinctive Characteristics
Sealing at front and back panel meets IP67 and IP60 of IEC60529
Standards. (Contact factory for further details regarding
operating environment.)
Single unit construction of bushing and case gives
added protection from environmental elements.
Antijamming design protects contacts from
damage due to excessive downward force
on the toggle.
Specially designed contact mechanism
for breaking light contact welds.
Minimal contact bounce achieved with
designed interlocked switching
mechanism.
Heat resistant resin used for outer housing
meets UL94V-0 flammability standard and
provides high arc and tracking resistance.
Actual Size
Epoxy sealed base covered by outer case doubles
protection from dust and water (not operable
under water or oil).
NKK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
02-08
Environmentally Sealed Toggles Series WT
General Specifications
Electrical Capacity (Resistive Load)
Power Level:
10A @ 125V AC or 6A @ 250V AC or 10A @ 30V DC
Other Ratings
Contact Resistance:
10 milliohms maximum for solder lug & screw terminal models;
30 milliohms maximum for wire lead terminal models
200 megohms minimum @ 500V DC
1,500V AC minimum for 1 minute minimum
50,000 operations minimum for On-None-Off, On-None-On, & On-Off-On models
30,000 operations minimum for all other models
15,000 operations minimum
Insulation Resistance:
Dielectric Strength:
Mechanical Life:
Electrical Life:
Angle of Throw:
24°
Materials & Finishes
Toggle:
Brass with chrome plating
Bushing & Outer Case:
Inner Case:
Fiberglass reinforced polyamide (UL94V-0)
Melamine
Inner Sealing Ring:
Nitrile butadiene rubber for On-None-Off, On-None-On, & On-Off-On models;
silicone rubber for all other models
Outer Sealing Ring:
Movable Contactor:
Movable Contacts:
Stationary Contacts:
Terminals:
Natural rubber
Copper with silver plating
Silver alloy plus copper with silver plating
Silver alloy plus copper with silver plating
Copper with tin plating for solder lug & wire lead; brass with silver plating for screw lug
Heat resistant polyvinyl chloride (Leads are AWG 16)
Wire Lead Covers:
Environmental Data
Operating Temp Range:
Humidity:
–30°C through +70°C (–22°F through +158°F)
90 ~ 95% humidity for 96 hours @ 40°C (104°F)
Vibration:
10 ~ 55Hz with peak-to-peak amplitude of 1.5mm traversing the frequency range
& returning in 1 minute; 3 right angled directions for 2 hours
50G (490m/s2) acceleration (tested in 6 right angled directions, with 5 shocks in each direction)
IP67 of IEC60529, dust tight & water protected during temporary immersion for all models;
optional toggle boot AT401 for additional protection (details at end of WT section)
IP60 of IEC60529, dust tight but not water protected
Shock:
Front Panel Seal:
Behind Panel Seal:
for solder lug & screw terminal models
IP67 of IEC60529, dust tight & water protected during temporary immersion
for wire lead models
Installation
Soldering Time & Temp:
Mounting Torque:
Manual Soldering: See Profile A in Supplement section.
1.47Nm (13 lb•in)
Standards & Certifications
Flammability Standards:
UL94V-0 outer case
Wiring Material Standards:
UL AWM 1015 Recognized at Flammability VW-1;
Temperature Range –20°C ~ +105°C; Maximum Load 600V; AWG 16.
CSA TEW 105 Certified at Temperature Range –20°C ~ +105°C;
Maximum Load 600V
NKK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
02-08
Environmentally Sealed Toggles Series WT
TYPICAL SWITCH ORDERING EXAMPLE
WT
2
2
S
POLES
CIRCUITS
TERMINALS
Solder Lug
Screw Lug
SPST
SPDT
1
2
3
5
8
9
ON NONE OFF
ON NONE ON
S
T
L
1
2
DPST
DPDT
ON
OFF
ON
Wire Lead
ON NONE (ON)
(ON)
ON
OFF
OFF
(ON)
(ON)
(
) = Momentary
DESCRIPTION FOR TYPICAL ORDERING EXAMPLE
WT22S
DPDT
ON-NONE-ON Circuit
Solder Lug Terminals
POLES & CIRCUITS
Toggle Position
Connected Terminals
Throw & Schematics
(
) = Momentary
Down
Flat
Center
Up
Down
Flat
Center
Up
Note: Terminal numbers are not
actually on wire lead models.
Pole
Model
WT11
1a (COM)
SP
ON
NONE
OFF
1a-1b
1-1b
OPEN
OPEN
OPEN
OPEN
OPEN
1-1a
SPST
1b
WT12
WT13
WT15
WT18
WT19
ON
ON
ON
(ON)
ON
NONE
OFF
NONE
OFF
ON
ON
(ON)
(ON)
(ON)
1 (COM)
SP
DP
DP
SPDT
1a
1b
OFF
1a (COM)
1b
2a
1a-1b
2a-2b
WT21
ON
NONE
OFF
OPEN
DPST
DPDT
2b
WT22
WT23
WT25
WT28
WT29
ON
ON
ON
(ON)
ON
NONE
OFF
NONE
OFF
ON
ON
(ON)
(ON)
(ON)
1
(COM)
1b 2a
2
1-1b
2-2b
1-1a
2-2a
1a
2b
OFF
NKK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
02-08
Environmentally Sealed Toggles Series WT
TYPICAL SWITCH DIMENSIONS
Single Throw • Solder Lug
(2.4) Dia Typ
.094
Flatted
2b 1b
(0.8) Typ
.031
1b
1
(28.8)
1.134
(28.8)
1.134
24ϒ
2
1
(11.2) Typ
.441
1a
2a 1a
(5.7) Dia
.224
M12 P1
(4.8)
.189
(1.0)
.039
(4.8)
.189
(4.8)
.189
(17.5)
.689
(9.6)
.378
(27.1)
1.067
(19.4)
.764
(19.4)
.764
Single Pole
Double Pole
WT11S
Double Throw • Solder Lug
(0.8) Typ
.031
Flatted
2b 1b
(2.4) Dia Typ
.094
1b
1
(28.8)
1.134
(28.8)
1.134
24ϒ
2
1
(11.2) Typ
.441
1a
2a 1a
(5.7) Dia
.224
M12 P1
(4.8)
.189
(4.8)
.189
(1.0)
.039
(4.8)
.189
(17.5)
.689
(9.6)
.378
(27.1)
1.067
(19.4)
.764
(19.4)
.764
Single Pole
Double Pole
WT22S
Single Throw • Screw Lug
M3.5 x 5
Flatted
2b 1b
1b
1
(28.8)
1.134
(28.8)
1.134
24ϒ
2
1
1a
2a 1a
(1.0)
.039
(5.7) Dia
.224
M12 P1
(1.0)
.039
(8.3)
.327
(6.6)
.260
(6.6)
.260
(17.5)
.689
(9.6)
.378
(30.6)
1.205
(19.4)
.764
(19.4)
.764
Single Pole
Double Pole
WT21T
NKK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
02-08
Environmentally Sealed Toggles Series WT
TYPICAL SWITCH DIMENSIONS
Double Throw • Screw Lug
M3.5 x 5
Flatted
2b 1b
1b
(28.8)
1.134
(6.6)
.260
(28.8)
1.134
1
24ϒ
2
1
1a
2a 1a
(5.7) Dia
.224
(1.0)
.039
M12 P1
(1.0)
.039
(8.3)
.327
(19.4)
.764
(9.6)
.378
(30.6)
1.205
(17.5)
.689
(19.4)
.764
Single Pole
Double Pole
WT22T
Single & Double Pole • Wire Lead
Flatted
1b
1
2b
2
1b
1
(30.2)
1.189
(30.2)
1.189
24ϒ
1a
2a
1a
(5.7) Dia
.224
M12 P1
(1.0)
.039
(10.0)
.394
+
(20.0)
(17.5)
.689
(9.6)
.378
(32.1)
1.264
(200.0)
7.874
-
(20.8)
.819
(20.8)
.819
Single Pole
Double Pole
WT22L
STANDARD WIRE COLOR SCHEME
Terminal Numbers & Wire Colors
1a
1
1b
White
Red
2a
2
2b
Wire leads are covered with heat
resistant vinyl in accordance to
UL 1015 and CSA TEW 105
Standards for Appliance Wiring
Material (AWM).
WT11
WT12-19
WT21
Black
White
Black
White
Black
Black
White
Red
Blue
Yellow
Green
WT22-29
Yellow
Blue
NKK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
02-08
Environmentally Sealed Toggles Series WT
PANEL CUTOUT & THICKNESS
Maximum Effective Panel Thickness with Standard Hardware: .157” (4.0mm)
Maximum Effective Panel Thickness with optional Boot Assemblies: .063” (1.6mm)
(11.2)
.441
(12.5) Dia
.492
STANDARD HARDWARE
AT503M Hex Face Nut
AT508 Internal Tooth Lockwasher
Material: Steel with Zinc/Chromate
1 supplied with each switch
AT401P O-ring
Material: Brass with Chrome Plating
1 supplied with each switch
M12 P1
Material: Natural Rubber
1 supplied with each switch
(12.1)
.476
(12.1) Dia
.476
(14.3)
.563
(15.8) Dia
.622
(17.5) Dia
.689
(13.8) Dia
.543
(1.5)
.059
(16.0)
.630
(2.4)
.094
(1.0)
.039
(0.5)
.020
OPTIONAL ACCESSORIES
Boot Assemblies for High Particulate Contamination Applications
AT401A for Oil Resistance
AT401H for Dust & Ozone Resistance
AT401S for Retention of Flexibility,
Resilience & Tensile Strength
Boot Material:
Black nitrile butadiene rubber
Boot Material:
Gray ethylene propylene rubber
Over Wide Temperature Range
Boot Material: Black silicone rubber
Hex Nut Material & Finish:
Nickel plated brass
Hex Nut Material & Finish:
Nickel plated brass
Hex Nut Material & Finish:
Nickel plated brass
O-ring Material: Natural rubber
O-ring Material: Natural rubber
O-ring Material: Natural rubber
(17.5) Dia
.689
(16.0) Dia
.630
(17.0) Dia
.669
(16.0) Dia
.630
Boot
M12 P1
(10.0)
.394
Hex Nut
(17.0)
.669
(11.7)
.461
Boot
(10.0)
.394
(11.7)
.461
Hex Nut
O-ring
Panel
O-ring
(1.5)
.059
(13.2)
.520
O-ring
(3.5) (5.5)
~
(12.1) Dia
.476
.138 .217
(17.5) Dia
.689
(1.6) Max
.063
(8.0) Dia
.315
AT4181 Splashproof Boot Assembly
(8.0) Dia
.315
(14.8)
.583
(13.8) Dia
.543
Boot Material:
Black Silicon rubber
(18.6)
.732
(21.5) Dia
.846
(14.8)
.583
M12 P1
(24.3)
.957
Nut Material & Finish:
Nickel plated brass
(18.6)
.732
Boot
& Nut
Boot
O-ring
Panel
O-ring
(24.3)
.957
(21.5) Dia
.846
O-ring Material: Natural rubber
(1.0)
.039
(1.6)
.063
(1.0)
.039
O-ring
Note: When using boot assemblies AT401A/H/S or AT4181, also use o-ring AT401P
from the standard hardware supplied. Hex face nut AT503M and lockwasher AT508
are not used with these boot assemblies.
(12.1) Dia
.476
(17.5) Dia
.689
NKK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
02-08
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