Safety Interlock Switch, 90 Degrees or Straight Key Actuated, Front and Top Opening, Rotating Head, Contact Form 1NO/1NC, Break Before Make, Direct Opening, Slow Action, Connection Type 1/2 in NPT Conduit, AC Contact Rating 100mA to 10A @ 600V, Series GKE, DC Contact Rating 100mA to 10A @ 250V, Height 3.61 in, Width 1.2 in, Depth 1.2 in, NEMA Rating 1, 12, 13, IP Rating 66, Operating Temp. Range -13 Degrees to 185 Degrees F, Contact Material Silver, Conduit Size 1/2 in NPT