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nkk switches ? email: sales@nkkswitches.com ? phone (480) 991-0942 ? fax (480) 998-1435 ? www.nkkswitches.com 02-08 environmentally sealed pushbuttons series wb distinctive characteristics single unit construction of the bushing and case gives added protection from environmental elements. specially designed contact mechanism for breaking light welds. minimal contact bounce is achieved with specially designed interlocked switching mechanism. outer housing of heat resistant resin meets ul 94v-0 fammability standard and provides high arc and tracking resistance. solder lug and screw terminal models meet ip67 of iec60529 standards at front panel (dust tight and water protected for temporary immersion). behind panel standard is ip60 (dust tight but not water protected). wire lead models conform fully to ip67 of iec60529 standards at front and behind panel (dust tight and water protected for temporary immersion). these models are epoxy sealed at the switch base and covered by an outer case for further protection from dust and water (not operable under water). actual size
nkk switches ? email: sales@nkkswitches.com ? phone (480) 991-0942 ? fax (480) 998-1435 ? www.nkkswitches.com 02-08 environmentally sealed pushbuttons series wb general specifcations electrical capacity (resistive load) power level: other ratings contact resistance: s s s s s s insulation resistance: s d dielectric strength: mechanical life: s electrical life: contact timing: total travel: materials & finishes plunger: ss bushing & outer case: ss s inner case: inner sealing ring: s outer sealing ring: movable contactor: s movable contacts: s s stationary contacts: s s terminals: ss s s s ss s s wire lead covers: h ss s g environmental data operating temp range: humidity: s vibration: h s s s shock: g s s s ss installation mounting torque: ? soldering time & temp: s s s s standards & certif ications flammability standards: wiring material standards: g s e
nkk switches ? email: sales@nkkswitches.com ? phone (480) 991-0942 ? fax (480) 998-1435 ? www.nkkswitches.com 02-08 environmentally sealed pushbuttons series wb cap colors a black b white c red d amber e yellow f green g blue h gray * not available with cap code e * * * * terminals s solder lug t screw lug l wire lead poles 1 spdt standard wire color scheme typical switch ordering example 1 s wb black .520 (13.2mm) dia. cap spdt on-on circuit actuator position ( ) = momentary connected terminals throw & schematics pole model normal down normal down sp sp wb12 wb15 on on on (on) 1-1b 1-1b 1-1a 1-1a spdt wire leads are covered with heat resistant vinyl in accordance to ul 1015 and csa tew 105 standards for appliance wiring material (awm). a circuits 2 on on 5 on (on) ( ) = momentary caps d .520 (13.2mm) dia. e .748 (19.0mm) dia. terminal numbers & wire colors models 1a 1 1b wb12l, wb15l white black red 2 description for typical ordering example wb12s-da poles & circuits note: terminal numbers are not actually on wire lead models. d s older lug terminals 1 (com) 1b 1a solder lug wb15s-da typical switch dimensions flat flat (1.0) .039 (33.0) 1.299 (0.8) ty p .031 (4.8) .189 m12 p1 (9.6) .378 (15.8) .622 flatted (2.4) dia ty p .094 (13.2) dia .520 (11.0) .433 (28.8) 1.134 1b 1 1a (19.4) .764 (4.8) .189 (11.2) .441 (12.5) dia .492 panel thickness .157 (4.0mm)
nkk switches ? email: sales@nkkswitches.com ? phone (480) 991-0942 ? fax (480) 998-1435 ? www.nkkswitches.com 02-08 environmentally sealed pushbuttons series wb (12.1) .476 (15.8) dia .622 (13.8) dia .543 caps & cap colors typical switch dimensions screw lug wire lead a cap color codes: b c at414 .520 (13.2mm) diameter wb12t-da wb12l-da e f g colors available: a b c d e f g h material: pbt finish: glossy black white red yellow green blue standard hardware (11.2) .441 (12.5) dia .492 (11.2) .441 (12.5) dia .492 (10.0) .394 (200.0) 7.874 (9.6) .378 + - (20.0) (1.0) .039 (38.0) 1.496 flatted m12 p1 (15.8) .622 (13.2) dia .520 (11.0) .433 (30.2) 1.189 (20.8) .819 1b 1 1a (1.0) .039 (36.5) 1.437 m12 p1 (9.6) .378 (15.8) .622 flatted (13.2) dia .520 (11.0) .433 (8.3) .327 m3.5 x 5 (6.6) .260 (1.0) .039 (28.8) 1.134 1b 1 1a (19.4) .764 panel thickness .157 (4.0mm) panel thickness .157 (4.0mm) h gray d at412 .748 (19.0mm) diameter e colors available: a b c f material: polystyrene finish: glossy (0.5) .020 (1.0) .039 (14.3) .563 m12 p1 (16.0) .630 (2.4) .094 (12.1) dia .476 (17.5) dia .689 (1.5) .059 d amber (12.8) dia .504 (11.0) .433 (14.9) .587 (13.2) dia .520 m3.5 p0.6 (8.0) .315 (11.7) .461 (19.0) dia .748 m3.5 p0.6 at401p o-ring material: natural rubber 1 supplied with each switch 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

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