Rockers
Toggles
Series WT
A
General Specifications
Electrical Capacity (Resistive Load)
Touch
Tilt
Tactiles
Slides
Rotaries
Keylocks
Programmable Illuminated PB
Pushbuttons
Indicators
Power Level:
Other Ratings
Contact Resistance: Insulation Resistance:
Dielectric Strength:
Mechanical Life:
Electrical Life:
Angle of Throw: Materials & Finishes
Toggle:
Bushing & Outer Case:
Inner Case:
Inner Sealing Ring:
Outer Sealing Ring:
Movable Contactor:
Movable Contacts:
Stationary Contacts:
Terminals:
Wire Lead Covers:
Environmental Data
Operating Temp Range:
Humidity: Vibration:
Shock:
Front Panel Seal:
Behind Panel Seal:
Installation
Soldering Time & Temp: Mounting Torque: Standards & Certifications
Flammability Standards:
Wiring Material Standards:
10A @ 125V AC or 6A @ 250V AC or 10A @ 30V DC
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
24°
Brass with chrome plating Fiberglass reinforced polyamide (UL94V-0)
Melamine
Nitrile butadiene rubber for On-None-Off, On-None-On, & On-Off-On models;
silicone rubber for all other models
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)
–30°C through +70°C (–22°F through +158°F)
90 ~ 95% humidity for 96 hours @ 40°C (104°F)
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
for solder lug & screw terminal models
IP67 of IEC60529, dust tight & water protected during temporary immersion
for wire lead models
Manual Soldering: See Profile A in Supplement section.
1.47Nm (13 lb • in)
UL94V-0 outer case
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
Supplement
Accessories
Environmentally Sealed Toggles
A124
www.nkk.com
Distinctive Characteristics
Rockers
A
Toggles
Series WT
Environmentally Sealed Toggles
Pushbuttons
Sealing for wire lead models meets IP67 of IEC60529 Standards
at front and back panel.
Programmable Illuminated PB
Sealing for solder lug or screw lug models meets IP67
at front panel and IP60 at back panel.
Keylocks
Single unit construction of bushing and case gives
added protection from environmental elements.
Rotaries
Epoxy sealed base covered by outer case doubles
protection from dust and water (not operable under
water or oil).
Slides
Specially designed contact mechanism that breaks
light contact welds for circuits 11, 12, 21 and 22.
Tactiles
Interlocked movable contact mechanism provides
highly reliable switching by minimizing contact
bounce over center contact.
Tilt
Actual Size
Supplement
Accessories
Indicators
Touch
Heat resistant resin used for outer housing meets UL94V-0
flammability standard and provides high arc and tracking
resistance.
www.nkk.com
A125
Environmentally Sealed Toggles
A
TYPICAL SWITCH ORDERING EXAMPLE
WT
Pushbuttons
Rockers
Toggles
Series WT
2
2
Programmable Illuminated PB
Poles
S
Circuits
1
SPST
SPDT
2
DPST
DPDT
Terminals
1
ON
NONE
OFF
S
Solder Lug*
2
ON
NONE
ON
T
Screw Lug
3
ON
OFF
ON
L
Wire Lead
5
ON
NONE
(ON)
8
(ON)
OFF
(ON)
9
ON
OFF
(ON)
(
* Wire harness & cable assemblies offered only in Americas
) = Momentary
Keylocks
DESCRIPTION FOR TYPICAL ORDERING EXAMPLE
Rotaries
WT22S
Slides
DPDT
ON-NONE-ON Circuit
Solder Lug Terminals
Tactiles
POLES & CIRCUITS
(
Model
SP
WT11
Indicators
SP
DP
Supplement
Center
Up
Flat
ON
Connected Terminals
Down
Throw & Schematics
Center
Up
OPEN
OPEN
Flat
NONE
OFF
1a-1b
Note: Terminal numbers are not
actually on wire lead models.
1a (COM)
SPST
1b
Accessories
Touch
Tilt
Down
Pole
Toggle Position
) = Momentary
DP
A126
WT12
WT13
WT15
WT18
WT19
ON
ON
ON
(ON)
ON
NONE
OFF
NONE
OFF
OFF
ON
ON
(ON)
(ON)
(ON)
1-1b
WT21
ON
NONE
OFF
1a-1b
2a-2b
OPEN
1-1b
2-2b
OPEN
WT22
WT23
WT25
WT28
WT29
ON
ON
ON
(ON)
ON
NONE
OFF
NONE
OFF
OFF
ON
ON
(ON)
(ON)
(ON)
OPEN
1-1a
1 (COM)
SPDT
1a
www.nkk.com
OPEN
1b
1a (COM)
DPST
2a
1b
1-1a
2-2a
1
DPDT
1a
2b
(COM)
1b
2a
2
2b
A
TYPICAL SWITCH DIMENSIONS
Single Throw • Solder Lug
Rockers
(2.4) Dia Typ
.094
2b 1b
(0.8) Typ
.031
Pushbuttons
Flatted
1b
24°
(28.8)
1.134
1
(11.2) Typ
.441
2
1a
(28.8)
1.134
1
2a 1a
M12 P1
(4.8)
.189
(1.0)
.039
(17.5)
.689
(9.6)
.378
(4.8)
.189
(27.1)
1.067
Programmable Illuminated PB
(5.7) Dia
.224
(4.8)
.189
(19.4)
.764
(19.4)
.764
Single Pole
Double Pole
WT11S
Double Throw • Solder Lug
Rotaries
(0.8) Typ
.031
Flatted
2b 1b
(2.4) Dia Typ
.094
1b
(28.8)
1.134
1
(11.2) Typ
.441
2
1a
1
(28.8)
1.134
Slides
24°
2a 1a
M12 P1
(4.8)
.189
(1.0)
.039
(17.5)
.689
(9.6)
.378
(4.8)
.189
(27.1)
1.067
(4.8)
.189
(19.4)
.764
(19.4)
.764
Single Pole
Tactiles
(5.7) Dia
.224
Double Pole
Single Throw • Screw Lug
Touch
Tilt
WT22S
Keylocks
Toggles
Series WT
Environmentally Sealed Toggles
M3.5 x 5
Flatted
2b 1b
(28.8)
1.134
1
2
1a
M12 P1
(17.5)
.689
2a 1a
(1.0)
.039
(1.0)
.039
(9.6)
.378
(8.3)
.327
(30.6)
1.205
(28.8)
1.134
(6.6)
.260
(6.6)
.260
(19.4)
.764
(19.4)
.764
Single Pole
Double Pole
www.nkk.com
Accessories
(5.7) Dia
.224
1
Supplement
24°
Indicators
1b
WT21T
A127
Toggles
Series WT
A
Environmentally Sealed Toggles
TYPICAL SWITCH DIMENSIONS
Rockers
Double Throw • Screw Lug
2b 1b
1b
(6.6)
.260
24°
(28.8)
1.134
1
2
1a
(28.8)
1.134
1
2a 1a
(5.7) Dia
.224
(1.0)
.039
M12 P1
(1.0)
.039
(8.3)
.327
(9.6)
.378
(17.5)
.689
(30.6)
1.205
(19.4)
.764
(19.4)
.764
Single Pole
Double Pole
WT22T
Single & Double Pole • Wire Lead
Rotaries
Keylocks
Programmable Illuminated PB
Pushbuttons
M3.5 x 5
Flatted
Flatted
Slides
1b
24°
1
(30.2)
1.189
1a
Tactiles
(5.7) Dia
.224
M12 P1
(1.0)
.039
(9.6)
.378
(10.0)
.394
(200.0) +- (20.0)
7.874
(32.1)
1.264
2b
1
2
1a
2a
(20.8)
.819
(20.8)
.819
Single Pole
Double Pole
Tilt
(17.5)
.689
1b
WT22L
STANDARD WIRE COLOR SCHEME
Terminal Numbers & Wire Colors
Wire leads are covered with heat
resistant vinyl in accordance to
UL 1015 and CSA TEW 105
Standards for Appliance Wiring
Material (AWM).
Supplement
Accessories
Indicators
Touch
A128
1a
WT11
Black
WT12-19
White
WT21
Black
WT22-29
White
www.nkk.com
1
1b
2a
2
2b
White
Black
Black
Red
White
Blue
Red
Yellow
Yellow
Blue
Green
(30.2)
1.189
A
PANEL CUTOUT & THICKNESS
Rockers
AT508 Internal Tooth Lockwasher
AT401P O-ring
Material: Brass with Chrome Plating
Material: Steel with Zinc/Chromate
Material: Nitrile butadiene rubber
1 supplied with each switch
1 supplied with each switch
1 supplied with each switch
(12.1)
.476
M12 P1
(14.3)
.563
(12.1) Dia
.476
(17.5) Dia
.689
(15.8) Dia
.622
(13.8) Dia
.543
(1.5)
.059
(0.5)
.020
(1.0)
.039
Keylocks
(2.4)
.094
OPTIONAL ACCESSORIES
Boot Assemblies for High Particulate Contamination Applications
AT401A for Oil Resistance
AT401H for Dust & Ozone Resistance
Boot Material:
Black nitrile butadiene rubber
Boot Material:
Gray ethylene propylene rubber
Hex Nut Material & Finish:
Nickel plated brass
Hex Nut Material & Finish:
Nickel plated brass
O-ring Material: Nitrile butadiene rubber
O-ring Material: Nitrile butadiene rubber
Rotaries
AT401S for Retention of Flexibility,
Resilience & Tensile Strength
Over Wide Temperature Range
Boot Material: Black silicone rubber
(17.5) Dia
.689
(17.0) Dia
.669
(16.0) Dia
.630
Hex Nut Material & Finish:
Nickel plated brass
O-ring Material: Nitrile butadiene rubber
Tactiles
(16.0) Dia
.630
Boot
M12 P1
(10.0)
.394
Panel
O-ring
AT4181 Splashproof Boot Assembly
(12.1) Dia
.476
O-ring
(17.5) Dia
.689
Touch
(3.5) ~ (5.5)
.138 .217
(1.6) Max
.063
(8.0) Dia
.315
Boot Material:
Black Silicon rubber
Nut Material & Finish:
Nickel plated brass
(1.5)
.059
O-ring
Tilt
Hex Nut
(14.8)
.583
(18.6)
.732
(8.0) Dia
.315
(13.8) Dia
.543
(14.8)
.583
(21.5) Dia
.846
(24.3)
.957
Boot
O-ring
O-ring Material: Nitrile butadiene rubber
(24.3)
.957
(2.1)
.083
(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.
www.nkk.com
Boot
& Nut
(21.5) Dia
.846
Panel
(1.0)
.039
M12 P1
(18.6)
.732
(12.1) Dia
.476
O-ring
Supplement
Boot
(10.0)
(11.7) .394
.461
(13.2)
.520
Hex Nut
(17.0)
.669
(11.7)
.461
Indicators
(16.0)
.630
Programmable Illuminated PB
AT503M Hex Face Nut
Pushbuttons
STANDARD HARDWARE
Accessories
(12.5) Dia
.492
With Standard Hardware: .157” (4.0mm)
With optional Boot Assembly AT401A/H/S: .063” (1.6mm)
With optional Boot Assembly AT4181: .083” (2.1mm)
Slides
Maximum Effective Panel Thickness
(11.2)
.441
Toggles
Series WT
Environmentally Sealed Toggles
(17.5) Dia
.689
A129
Notes
A130
www.nkk.com