Enclosed Switch - Plunger Actuated: Type - Basic Limit Switch; Rating - NEMA - NEMA 4; Head/Operator - Top Push Roller; Head Action - Spring Return, Standard; Poles/Contacts - SPDT 1NO 1NC; Operating Force - 1.2 lb 5.5N OF; Pre-Travel - Travel To Operate - 2.64 in 67mm PT; Differential-Travel - Travel To Reset - 0.16 in 4.1mm DT; Over-Travel/Total-Travel - 2.05 in 52mm OT; Operating Temperature - min - -40 deg F -40 deg C; Operating Temperature - max - 185 deg F 85 deg C; Body Construction - Die Cast Zinc; Electrical Rating - VAC/DC - 3.6 Vdc; Additional Information - NEMA 1, 4, 12, 13, IP67; Manufacturer Series - WGLA Series