Safety Interlock Switch Metal Locking Contact Form 2NC Connection Type M20 AC Contact Rating 10A @ 600V Series D4BS DC Contact Rating 0.4A @ 250V Height 4.375 in Width 1.5625 in Depth 1.6875 in IP Rating 67 Operating Temp Range -40 Degrees to 80 Degrees C Contact Material Silver Conduit Size M20 Body Material Aluminum Die-Cast Head Material Aluminum Die-Cast Pre-travel 10 +/-5mm Positive Travel 20mm Movement Lateral Operating Force 19.61 in-lb Max