Westinghouse Electric Corporation 373B331G12 Contact Kit

The Westinghouse 373B331G12 Contact Kit is a replacement renewal kit for Westinghouse A200 Series magnetic contactors and motor starters, designed to replace worn moving and stationary power contacts in NEMA Size 2 three-pole assemblies. By restoring proper switching performance and reducing contact resistance, it helps extend the service life of industrial motor control equipment. Key specs include Part Number 373B331G12, Manufacturer Westinghouse / Cutler-Hammer / Eaton, Series Compatibility A200 Series, Contactor Size NEMA Size 2, and a 3-Pole configuration with a Voltage Rating up to 600 VAC. Common applications span manufacturing systems, HVAC equipment, compressors, pumps, conveyors, and other industrial automation scenarios where reliable load switching is required in MCCs, starter assemblies, and control panels. This kit is commonly referenced alongside Eaton A200 Size 2 Contact Kits, Cutler-Hammer Size 2 Contact Kits, and Allen-Bradley Size 2 Contactor Contact Kits for replacement and retrofit projects.