Basic Switch - Plunger Actuated: Type - Basic Limit Switch; Head - Roller Lever; Operator Configuration - Sealed; Head Action - Spring Return, Standard; Poles/Contacts - SPDT; Current Rating - nominal - 20A; Force to Operate - 10 oz 2.78N OF; Differential-Travel - max - 0.025 in 0.63mm DT; Over-Travel - 0.094 in 2.39mm OT; Contact Rating - 22A 125-250Vac; Connection - Screw Terminal; Connection Configuration - Bottom Facing Screw w/Cup Washer, 8-32 x 0.218 in; Operating Temperature - -67 deg F -55 deg C to 185 deg F 85 deg C; Construction - Phenolic; Additional Information - Lever Radius, 1.05 in 26.7mm. Stainless Steel Roller. Splash Resistant Seal; Manufacturer Series - BM Series