Cutler-Hammer HMCP400X5W Molded Case Circuit Breaker

Cutler-Hammer HMCP400X5W molded case circuit breaker is a 400 amp, 600-volt, three-pole protective device designed for overcurrent protection in electrical distribution. Identified by the HMCP400X5W part number, this W Trip variant belongs to Cutler-Hammer’s molded case breaker lineup and is intended for installation in compatible enclosures and panelboards. With a 400 A rating, it protects downstream circuits from overloads and short circuits, helping to prevent equipment damage when used in appropriately rated systems. The 600 V rating indicates the maximum voltage it is designed to interrupt, making it suitable for typical commercial and light industrial power distribution networks. The three-pole configuration supports three-phase circuits, enabling protection of multi-phase feeders and branch circuits. In practice, it serves as a protective device within panels that require a robust, factory-labeled solution from a trusted manufacturer.