a132 general specifcations 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 insulation resistance: 200 megohms minimum @ 500v dc dielectric strength: 1,500v ac minimum for 1 minute minimum mechanical life: 50,000 operations minimum for on-none-off, on-none-on, & on-off-on models 30,000 operations minimum for all other models electrical life: 15,000 operations minimum angle of throw: 24 materials & finishes toggle : brass with chrome plating bushing & outer case: glass fber reinforced polyamide (ul94v-0) inner case: 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: nitrile butadiene rubber movable contactor: copper with silver plating movable contacts: silver alloy plus copper with silver plating stationary contacts: silver alloy plus copper with silver plating terminals: brass with tin plating wire lead covers: heat resistant polyvinyl chloride (leads are awg 16) environmental data operating temp range: C30c through +70c (C22f through +158f) humidity: 90 ~ 95% humidity for 96 hours @ 40c (104f) 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 shock: 50g (490m/s 2 ) acceleration (tested in 6 right angled directions, with 5 shocks in each direction) front panel seal: 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) behind panel seal: 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 installation soldering time & temp: manual soldering: see profle a in supplement section. mounting torque: 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 C20c ~ +105c; maximum load 600v; awg 16. csa tew 105 certifed at temperature range C20c ~ +105c; maximum load 600v series wt environmentally sealed toggles indicators accessories supplement tactiles keylocks rotaries pushbuttons illuminated pb slides programmable rockers touch tilt a toggles www.nkkswitches.com
a133 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. heat resistant resin used for outer housing meets ul94v-0 fammability standard and provides high arc and tracking resistance. actual size series wt environmentally sealed toggles nictos ccessoies ement cties eocks oties shttons minte ies omme oes ockes och it www.nkkswitches.com
a134 terminals s solder lug t screw lug l wire lead typical switch ordering example s wt dpdt on-none-on circuit circuits 1 on none off 2 on none on 3 on off on 5 on none (on) 8 (on) off (on) 9 on off (on) ( ) = momentary description for typical ordering example wt22s 2 solder lug terminals poles 1 spst spdt 2 dpst dpdt 2 toggle position ( ) = momentary connected terminals throw & schematics pole model down center up down center up note: terminal numbers are not actually on wire lead models. sp wt11 on none off 1a-1b open open spst sp wt12 wt13 wt15 wt18 wt19 on on on (on) on none off none off off on on (on) (on) (on) 1-1b open 1-1a spdt dp wt21 on none off 1a-1b 2a-2b open open dpst dp wt22 wt23 wt25 wt28 wt29 on on on (on) on none off none off off on on (on) (on) (on) 1-1b 2-2b open 1-1a 2-2a dpdt poles & circuits 1 1b 2b 2 (com) 1a 2a flat flat 1a (com) 1b 1a 2a (com) 1b 2b 1 (com) 1b 1a series wt environmentally sealed toggles indicators accessories supplement tactiles keylocks rotaries pushbuttons illuminated pb slides programmable rockers touch tilt a toggles www.nkkswitches.com
a135 typical switch dimensions wt11s double throw ? solder lug single throw ? solder lug wt21t single throw ? screw lug (1.0) .039 24 (27.1) 1.067 (2.4) dia ty p .094 (0.8) ty p .031 (4.8) .189 m12 p1 (5.7) dia .224 (9.6) .378 (17.5) .689 flatted (11.2) ty p .441 (28.8) 1.134 1b 1 1a (19.4) .764 (4.8) .189 (28.8) 1.134 1 (19.4) .764 2 2a 1a 2b 1b (4.8 ) .189 (28.8) 1.134 1 (19.4) .764 2 2a 1a 2b 1b (4.8 ) .189 (1.0) .039 24 (27.1) 1.067 (0.8) ty p .031 (4.8) .189 m12 p1 (5.7) dia .224 (9.6) .378 (17.5) .689 flatted (2.4) dia ty p .094 (11.2) ty p .441 (28.8) 1.13 4 1b 1 1a (19.4) .764 (4.8) .189 (1.0) .039 24 (30.6) 1.205 (8.3) .327 m12 p1 (5.7) dia .224 (9.6) .378 (17.5) .689 flatted m3.5 x 5 (1.0) .039 (28.8) 1.134 1 (19.4) .764 2 2a 1a 2b 1b (6.6 ) .260 (28.8) 1.134 1b 1a (19.4) .764 1 (6.6) .260 single pole double pole single pole double pole single pole double pole wt22s series wt environmentally sealed toggles nictos ccessoies ement cties eocks oties shttons minte ies omme oes ockes och it www.nkkswitches.com
a136 typical switch dimensions wt22t wt22l single & double pole ? wire lead double throw ? screw lug standard wire color scheme terminal numbers & wire colors 1a 1 1b 2a 2 2b wt11 black white wt12-19 white black red wt21 black white blue yellow wt22-29 white black red yellow blue green wire leads are covered with heat resistant vinyl in accordance to ul 1015 and csa tew 105 standards for appliance wiring material (awm). single pole double pole single pole double pole (28.8) 1.13 4 1b 1 1a (19.4) .764 (1.0) .039 24 (30.6) 1.205 (8.3) .327 m12 p1 (5.7) dia .224 (9.6) .378 (17.5) .689 flatted m3.5 x 5 (1.0) .039 (6.6) .260 (28.8) 1.13 4 1 (19.4) .764 2 2a 1a 2b 1b (10.0) .394 (200.0) 7.874 (9.6) .378 (17.5) .689 + - (20.0) (1.0) .039 (32.1) 1.264 m12 p1 24 (5.7) dia .224 flatted (30.2) 1.189 (20.8) .819 1b 1 1a (30.2) 1.189 (20.8) .819 2b 1b 2 1 2a 1a series wt environmentally sealed toggles indicators accessories supplement tactiles keylocks rotaries pushbuttons illuminated pb slides programmable rockers touch tilt a toggles www.nkkswitches.com
a137 panel cutout & thickness standard hardware optional accessories maximum effective panel thickness with standard hardware: .157 (4.0mm) with optional boot assembly at401a/h/s: .063 (1.6mm) with optional boot assembly at4181: .083 (2.1mm) at503m hex face nut material: brass with chrome plating 1 supplied with each switch at508 internal tooth lockwasher material: steel with zinc/chromate 1 supplied with each switch at401p o-ring material: nitrile butadiene rubber 1 supplied with each switch at401a for oil resistance boot material: black nitrile butadiene rubber hex nut material & finish: nickel plated brass o-ring material: nitrile butadiene rubber at401h for dust & ozone resistance boot material: gray ethylene propylene rubber hex nut material & finish: nickel plated brass o-ring material: nitrile butadiene rubber 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. boot assemblies for high particulate contamination applications (16.0) .630 (2.4) .094 (12.1) dia .476 (17.5) dia .689 (1.5) .059 (10.0) .394 (16.0) dia .630 (17.0) .669 m12 p1 (11.7) .461 (1.5) .059 (12.1) dia .476 (17.5) dia .689 boot hex nut o-ring (12.1) .476 (15.8) dia .622 (13.8) dia .543 (0.5) .020 (1.0) .039 at401s for retention of flexibility, resilience & tensile strength over wide temperature range boot material: black silicone rubber hex nut material & finish: nickel plated brass o-ring material: nitrile butadiene rubber (14.3) .563 m12 p1 at4181 splashproof boot assembly boot material: black silicon rubber nut material & finish: nickel plated brass o-ring material: nitrile butadiene rub ber (8.0) dia .315 (24.3) .957 (14.8) .583 (18.6) .732 (13.8) dia .543 (21.5) dia .846 (2.1) .083 (1.0) .039 boot o-ring panel o-ring (18.6) .732 (14.8) .583 (24.3) .957 (21.5) dia .846 (8.0) dia .315 m12 p1 (1.0) .039 (12.1) dia .476 (17.5) dia .689 boot & nut o-ring (16.0) dia .630 (11.7) .461 (10.0) .394 (13.2) .520 (17.0) dia .669 (17.5) dia .689 (3.5) .138 (5.5) .217 ~ (1.6) max .063 boot hex nut o-ring panel o-ring (11.2) .441 (12.5) di a .492 series wt environmentally sealed toggles nictos ccessoies ement cties eocks oties shttons minte ies omme oes ockes och it www.nkkswitches.com
a138 notes www.nkkswitches.com
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