Westinghouse 373B331G18 Contact Kit

The Westinghouse 373B331G18 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 00 three-pole and four-pole assemblies to restore switching performance and extend service life. Part number 373B331G18, manufactured by Westinghouse / Cutler-Hammer / Eaton, supports A200/A201/A210/A211 contactors and motor starters and is intended for industrial motor control and switching systems. The kit fits NEMA Size 00 devices in 3-pole or 4-pole configurations and delivers voltage ratings up to 600 VAC with a current capacity of 9 A, suitable for MCCs, starter assemblies, and control panels in manufacturing, HVAC, compressors, pumps, conveyors, and automation lines. Common replacements include Eaton A200 Size 00 Contact Kit, Cutler-Hammer Size 00 Contact Kit, and Allen-Bradley Size 00 Contactor Contact Kit.