Explosion Proof Safety Interlock Switch, Rotary Lever Arm, Contact Form 2NC/1NO, Break Before Make, Positive Break, Silver Contacts, Slow Acting, Actuator Length 2.2 in, Connection Type Screw Terminals, AC Contact Rating 10A @ 600V, Series GSX, DC Contact Rating 10A @ 250V, Height 6.07 in, Width 1.75 in, Depth 2.84 in, NEMA Rating 1, 12, 13, 3, 4, IP Rating 67, Operating Temp. Range -40 Degrees to 158 Degrees F, Contact Material Silver, Conduit Size 1/2 in NPT, Body Material Zinc Die-Cast