Basic Switch - Plunger Actuated: Type - Basic Limit Switch; Head - Roller Plunger; Head Action - Spring Return, Standard; Poles/Contacts - 1NO 1NC; Current Rating - nominal - 10A; Force to Operate - 2.4 lb (11N) OF; Pre-Travel - max - 144371 PT; Differential-Travel - max - 144371 DT; Over-Travel - 144371 OT; Contact Rating - 10A 300Vac; Connection - Cable Gland; Operating Temperature - -13 deg F (-25 deg C) to 185 deg F (85 deg C); Construction - Die Cast Zinc; Additional Information - NEMA 1, 4, 12, IP67; Manufacturer Series - 91MCE Series