apem www.apem.com b-123 1200m/mr series robust momentary pushbutton switches - metal plunger distinctive features and specifications b ? ? butt action contacts, double break ? ? ul and csa approved materials ?case : polyamide ?plunger : top chrome plated brass on polyamide base ?bushing : brass, nickel plated ?cap nut : brass, chrome plated ?contacts : a : silver c : copper, silver plated electrical specifications ?max. current/voltage rating with resistive load : - silver contacts (a) : 4a 250vac - 8a 125vac - 4a 24vdc - 8a 12vdc - silver plated copper contacts (c) : 2a 250vac - 3a 125vac - 2a 14vdc - 3a 12vdc ?initial contact resistance : 10 m max. at 1a 2vdc ?insulation resistance : 1.000 m min. at 500vdc ?dielectric strength : 2.000 vrms 50 hz min. between terminals 3.000 vrms 50 hz min. between terminals and frame ?electrical life : 10.000 cycles at full load general specifications ?torque : 1,50 nm (1.10 ft.lb) max. applied to nut ?panel thickness : 4,5 mm (.177) max. total travel : no : 4,5 mm (.177) +/- 0,3 (.011) nc : 3,5 mm (.137) +/- 0,3 (.011) ?operating temperature : -20? to +55? agency approvals availability : approved models are 1213a and 1203a (m or mr) (model 1223a is only ul approved). marking : to order switches marked ul or csa, complete appropriate box of ordering format. 4a 250vac - 8a 125vac mounting accessories : standard hardware supplied with all models : 1 hex nut u166 and 1 conic cap nut u1866-6. special cap nut u1874 is presented on the following pages. packaging unit : 40 pieces dimensions : first dimensions are in mm while inches are shown as bracketted numbers. about this series
b-124 apem www.apem.com 1200m/mr series robust momentary pushbutton switches - metal plunger solder lug/quick-connect terminals - screw terminals b solder lug/quick-connect terminals 6,35 x 0,8 (.250 x .031) model structure no nc (function 3) (function 2) curved plunger flat plunger 1212mr 1212m nc 1213mr 1213m no screw terminals curved plunger flat plunger 1222mr 1222m nc 1223mr 1223m no screw terminals + clamp curved plunger flat plunger 1202mr 1202m nc 1203mr 1203m no ? flat or curved plunger panel cut-out 12,2 (.480) ?single pole ? keyway 121. 122. 120. ? keyway ? keyway ? keyway 9.20 6.35x0.80 (.362) (.25x.031) (.122dia) 3.10 4.50 (.177) (.283) (.031) (.118diax0.50) 3.00x0.50 0.80 7.20 6.35 (.25) (.25) 6.35 9.20 0.80 3.00x0.50 (.118diax0.50) (.031) (.362) 12.00x0.75 si 17.00 (.519) 6.35x0.80 14.00 8.00 12.00 9.20 (.472diax0.75 is) (.669) (.551) 13.20 (.315dia) (.25x0.031) (.472) (.362) (.295) (.196) 5.00 7.50 (.039) 1.00 5.00 (.196) (.472diax0.75 is) 12.00x0.75 si 13.20 (.669) (.519) 17.00 (.551) 14.00 8.00 (.315) (.472) 12.00 7.50 5.00 (.196) (.295) (.315dia) 8.00 1.00 (.039) (.196) 5.00 7.00 (.275) 6.35x0.80 (.25x.031) 17.00 13.20 (.669) (.519) 12.00 (.472) 14.00 (.551) 12.00x0.75 si (.472diax0.75 is) 8.00 (.315dia) (.295) (.196) (.196) 5.00 5.00 7.50 (.039) 1.00
apem www.apem.com b-125 1200m/mr series robust momentary pushbutton switches - metal plunger b contact materials a silver c copper, silver plated chrome plated cap nut 16 (.629), flat and plain. can be supplied instead of standard cap nut u1866-6. order separately. special cap nut agency approvals ul - csa availability : approved models are 1213a and 1203a (m or mr) - model 1223a is only ul approved. marking : to order switches marked ul or csa, complete above box with desired approvals. u1874 (.629dia) (.137) 16.00 3.50
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