Westinghouse 373B331G04 3-Pole Size 1 Contact Kit

Westinghouse 373B331G04 3-Pole Size 1 Contact Kit is a replacement power contact kit designed for Westinghouse A200 Series and Model J magnetic contactors and motor starters, used to restore electrical switching performance by replacing worn moving and stationary contacts in Size 0 three-pole contactor assemblies. It helps maintain proper current transfer and reduces contact resistance, extending the life of motor control equipment in manufacturing, HVAC, and automation panels. Technical specs include a 3-pole configuration for Size 0 contactors, compatibility with Westinghouse A200 Series and Model J, voltage rating up to 600 VAC, current rating about 18 A, and included contact assemblies, springs, and mounting hardware (kit version varies).