Safety Interlock Switch, 0.3 in dia Top Pin Plunger, Contact Form 1NO/1NC, Direct Opening, Single Pole, Snap Action, Actuator Length 1.48 in, Connection Type 1/2 in NPT Conduit, AC Contact Rating 100mA to 10A @ 600V, Series GSA, DC Contact Rating 100mA to 10A @ 250V, Height 3.23 in, Width 1.65 in, Depth 1.65 in, NEMA Rating 1, 12, 13, 4, IP Rating 67, Operating Temp. Range -13 Degrees to 185 Degrees F, Contact Material Silver, Conduit Size 1/2 in NPT, Body Material Zinc Die-Cast