Westinghouse 373B331G35 Upper Base Assembly For A200 Series Type A Contactors

The Westinghouse 373B331G35 Upper Base Assembly is a replacement structural component for Westinghouse A200 Series Type A contactors, designed to support and align the contact carrier, armature, and operating mechanism in NEMA Size 2 units configured as 4-pole or 5-pole. It maintains proper contact alignment and mechanical operation, contributing to reliable performance in industrial motor control and lighting control applications. Compatible with A200 Series and A202 contactors, this upper base is listed as Eaton replacement part 672B788G35 and covers 4-pole or 5-pole configurations. Common installations include MCCs, starter assemblies, and control panels in manufacturing, HVAC, automation, and industrial processing systems, including A200 Series magnetic contactors and A202 lighting contactors, where reliable contactor operation and mechanical support are required.