This Eaton E50SB limit switch body is intended for use with an Eaton switch receptacle and operating head (not included). The switch body receptacle has a zinc die cast enclosure and Viton gaskets, seals and boots for chemical resistance. The four-pole single-throw snap action normally-closed (2 NC) and normally-open (2 NO) contacts switch from closed to open and open to closed at the same time, regardless of the actuating speed. It is NEMA A600 rated. This limit switch body is Underwriters Laboratories Listed (UL), Canadian Standards Association (CSA) certified, and European Conformity (CE) compliant for quality assurance, meets Ingress Protection (IP) 67 standard for protection from dust and water, and is suitable for use in plant and building automation systems.Eaton manufactures electrical, hydraulic, and mechanical power equipment, including the Moeller brand, and was founded in 1911 and is headquartered in Dublin, Ireland.