Safety Interlock Switch, Contact Form 1NO/2NC, Actuator Length Key Dependent, Connection Type 1/2 in NPT Conduit, AC Contact Rating 4A @ 300V AC, Series XCSL, DC Contact Rating 3A @ 300V, Height 8.1 in, Width 1.71 in, Depth 2.01 in, NEMA Rating 12, 4, 4X, IP Rating 67, Operating Temp. Range -13 Degrees to 158 Degrees F, Conduit Size 1/2 in NPT, Body Material Zamak, Head Material Zamak, Description/Special Features Dust Tight and Corrosion Resistant (Indoor/Outdoor) Enclosure, Water Tight