Safety Interlock Switch, Multi-Entry Key Operated (Straight, 90 Degrees , or Spring Key), Contact Form 2NC/1NO, Direct Opening, Slow Action, Connection Type 1/2 in NPT Conduit, AC Contact Rating 100mA to 10A @ 240V, Series GKN, DC Contact Rating 100mA to 10A @ 250V, Height 3.54 in, Width 2.52 in, Depth 1.18 in, NEMA Rating 1, 12, 13, 4 (Indoor Only), IP Rating 67, Operating Temp. Range -13 Degrees to 185 Degrees F, Contact Material Silver, Conduit Size 1/2 in NPT, Body Material Plastic