Cutler-Hammer HFD3100 Circuit Breaker

Cutler-Hammer HFD3100 Circuit Breaker, also referenced as Cutler Hammer HFD3100, is a three-pole device rated for 100 amperes and a 600-volt maximum. The model number HFD3100 identifies this specific unit, reflecting the historical Cutler Hammer lineage within the Cutler-Hammer family. As a circuit breaker, it serves to interrupt current to protect electrical circuits from overload or fault conditions, with its three-pole design enabling simultaneous interruption of multiple conductors. The 100 A rating denotes the continuous current the device is designed to carry under normal operation before tripping, while the 600 V rating specifies the highest voltage at which it is qualified to interrupt current. This combination makes the HFD3100 suitable for installations within systems that operate at or below these electrical limits, and its identification by both brands helps technicians locate compatible replacements in legacy catalogs and modern Cutler-Hammer inventories.