Westinghouse MCP331000R Motor Circuit Protector

The Westinghouse MCP331000R Motor Circuit Protector is a three-pole, 100 A magnetic-trip device designed for panel-mount installation in industrial motor circuits. It provides short-circuit protection for motors and related equipment at up to 600 VAC and 50/60 Hz, making it suitable for motor control centers, HVAC systems, pumps, conveyors, packaging machinery, and process automation panels. With screw-terminal connections and an industrial duty rating, this protector delivers reliable three‑phase protection in demanding environments and is compatible with switchgear and MCC installations. For retrofit or cross‑compatibility, common replacements include Eaton HMCP050K2C, Square D FA34100, and Allen-Bradley 140M-C2E-B100, aligning with the MCP331000R in legacy industrial control layouts.