Series WT
Toggles
Environmentally Sealed Toggles
A
General
Specifications
Electrical Capacity (Resistive Load)
Power Level:
10A @ 125V AC or 6A @ 250V AC or 10A @ 30V DC
Pushbuttons
Rockers
Other Ratings
Contact Resistance:
Programmable Illuminated PB
Insulation Resistance:
Dielectric Strength:
Mechanical Life:
Electrical Life:
Angle of Throw:
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°
Materials & Finishes
Keylocks
Toggle:
Bushing & Outer Case:
Inner Case:
Inner Sealing Ring:
Outer Sealing Ring:
Movable Contactor:
Movable Contacts:
Stationary Contacts:
Terminals:
Wire Lead Covers:
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)
Slides
Rotaries
Environmental Data
Tactiles
Operating Temp Range:
Humidity:
Vibration:
Shock:
Front Panel Seal:
Behind Panel Seal:
–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/s
2
) 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
Touch
Tilt
Installation
Soldering Time & Temp:
Mounting Torque:
Manual Soldering: See Profile A in Supplement section.
1.47Nm (13 lb
•
in)
Indicators
Standards & Certifications
Flammability Standards:
Wiring Material Standards:
Supplement
Accessories
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
A124
www.nkk.com
Environmentally Sealed Toggles
Series WT
A
Toggles
Supplement
Accessories
Indicators
Touch
Tilt
Tactiles
Slides
Rotaries
Keylocks
Programmable Illuminated PB
Pushbuttons
Rockers
Distinctive
Characteristics
Sealing for wire lead models meets IP67 of IEC60529 Standards
at front and back panel.
Sealing for solder lug or screw lug models meets IP67
at front panel and IP60 at back panel.
Single unit construction of bushing and case gives
added protection from environmental elements.
Epoxy sealed base covered by outer case doubles
protection from dust and water (not operable under
water or oil).
Specially designed contact mechanism that breaks
light contact welds for circuits 11, 12, 21 and 22.
Interlocked movable contact mechanism provides
highly reliable switching by minimizing contact
bounce over center contact.
Actual Size
Heat resistant resin used for outer housing meets UL94V-0
flammability standard and provides high arc and tracking
resistance.
www.nkk.com
A125
Series WT
Toggles
Environmentally Sealed Toggles
TYPICAL SWITCH DIMENSIONS
A
Double Throw • Screw Lug
Rockers
Pushbuttons
M3.5 x 5
Flatted
2b 1b
1b
24°
(6.6)
.260
1
1a
(28.8)
1.134
2
1
(28.8)
1.134
Programmable Illuminated PB
2a 1a
(5.7) Dia
.224
M12 P1
(1.0)
.039
(17.5)
.689
(9.6)
.378
(30.6)
1.205
(8.3)
.327
(1.0)
.039
(19.4)
.764
(19.4)
.764
Single Pole
WT22T
Double Pole
Rotaries
Keylocks
Single & Double Pole • Wire Lead
Flatted
Slides
1b
1b
2b
24°
1
(30.2)
1.189
1
2
(30.2)
1.189
1a
1a
2a
Tactiles
(5.7) Dia
.224
M12 P1
(17.5)
.689
(9.6)
.378
(1.0)
.039
(32.1)
1.264
(200.0)
+ (20.0)
-
7.874
(10.0)
.394
(20.8)
.819
(20.8)
.819
Single Pole
Tilt
Double Pole
WT22L
Touch
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).
Indicators
1a
WT11
WT12-19
WT21
WT22-29
Black
White
Black
White
1
Black
Black
1b
White
Red
White
Red
2a
2
2b
Accessories
Blue
Yellow
Blue
Yellow
Green
Supplement
A128
www.nkk.com
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