Westinghouse FDB3100L Three Phase Circuit Breaker

The Cutler-Hammer Westinghouse FDB3100L functions as a heavy-duty three-pole molded case circuit breaker specifically rated for 100 ampere continuous current loads, serving as a primary safety interruption point within industrial three-phase electrical distribution architectures where system stability is required. Engineered with integral thermal-magnetic tripping mechanisms located within the enclosed housing, this unit provides necessary automatic protection against destructive overloads and sudden short circuits by detecting abnormal current conditions and physically separating the conductive path before permanent damage propagates to sensitive connected equipment. Field technicians install this specific breaker model into standard industrial switchgear or panelboards where its standardized enclosure footprint aligns perfectly with existing busbar interfaces, effectively facilitating reliable service continuity in mission-critical power applications that demand strict current management adherence to the original FDB frame specifications and physical mounting dimensions commonly associated with industrial grade replacement components used to restore functionality to aging distribution hardware.