Westinghouse MCP431800CR Motor Circuit Breaker Protector

Westinghouse MCP431800CR Motor Circuit Break Protector is a 3-pole, 150 A, 600 VAC molded-case device with a magnetic-trip mechanism for motor short-circuit protection in three‑phase systems. It is designed for panel-mount installations and is commonly deployed in motor control centers, conveyor systems, manufacturing equipment, HVAC gear, and other industrial panels where reliable fault interruption is essential. The unit carries the secondary reference 2610D55G08, uses screw terminals, operates at 50/60 Hz, and is rated for industrial duty in motor protection applications. Common replacements include HMCP150U4C, Allen-Bradley 140M-C2E-B150, and Square D FA34150.