Enclosed Switch - Plunger Actuated: Type - Safety Limit Switch; Rating - NEMA - NEMA 4; Head/Operator - Top Push Roller; Head Action - Spring Return, Standard; Poles/Contacts - 4NC; Current Rating - nominal - 100mA; Operating Temperature - min - -13 deg F -25 deg C; Operating Temperature - max - 185 deg F 85 deg C; Body Construction - Die Cast Zinc; Connection Type - Threaded Entry; Connection Size - 20mm; Electrical Rating - VAC/DC - 100mA 50Vac Vdc Rated; Additional Information - NEMA 1, 4, 12, 13, IP67, Silver Contacts, Slow Action Switch; Manufacturer Series - GSS Series