Westinghouse MC3800F Molded Case Circuit Breaker

Westinghouse MC3800F Molded Case Circuit Breaker is an 800-amp, three-pole protective device rated for 600 volts, designed to interrupt faults in three-phase power distribution and protect feeders and panels. Built as a molded-case switchgear component, it combines robust construction with protective trip functionality to guard upstream equipment and wiring in commercial and industrial installations. The MC3800F is UL-listed and provides a high fault-current interrupting capability, with an interrupting rating of up to 30 kA at 480 V, enabling reliable protection in systems with significant available fault current. As part of the Westinghouse MC family, this breaker’s three-pole format ensures simultaneous disconnection of all phases, helping to prevent open-phase conditions and reducing the risk of equipment damage during faults. Typical applications include main feeders and distribution panel protection in industrial facilities, manufacturing equipment suites, and large commercial power rooms where high-capacity, site-specific protection is required. When selecting compatible gear, verify that the MCCB is suitable for the intended busbar arrangement, enclosure type, and system voltage class to ensure proper fit and electrical compatibility.