Westinghouse MCP534000 Motor Circuit Protector

Westinghouse MCP534000 Motor Circuit Protector is a 400-amp, three-pole magnetic-only protector designed to deliver instantaneous short-circuit protection for 3-phase motors up to 600 V. The MCP534000C variant provides a 400 A frame and 400 A trip with aluminum load-side lug terminals and bolt-on mounting, and it carries a 65 kA at 480 V interrupt rating in typical three-pole configurations. As part of the MCP family from Cutler-Hammer/Eaton/Westinghouse, this molded-case motor circuit protector offers magnetic protection without an integral thermal overload element, making it suitable for fast isolation of motors in pumps, compressors, fans, conveyors, and other industrial equipment where 600 V class service is used. This device is intended for panel installations where robust, code-compliant short-circuit protection is required and where a 3-pole, 400 A protection device is specified for motor circuits.