OMRON WLCA22N General Purpose Limit Switch. More details: General Purpose Limit Switch, Rotary Lever Arm, Side, 10 Amps, Contact Form SPDT/Double Break, Voltage Rating 480VAC, NEMA Rating 3, 4, 13, G1/2 Wiring Entry, Electrical Connection Screw Terminals, IP Rating 67, Movement CW/CCW, Travel Total Travel 90 Degrees , Series WL, Operating Temp. Range 14 Degrees to 176 Degrees F, Actuator Length 1.50 In., Arm Width 0.63 In., Roller Dia. 0.69 In., Roller Width 0.28 In., Roller Material Stainless Steel, Body Material Aluminum, Arm Material Aluminum