Eaton Cutler-Hammer HFWF1100VL Circuit Breaker

The Eaton Cutler-Hammer HFWF1100VL is a thermal-magnetic circuit breaker rated for 100 A at 240 VAC, configured as a 1P (single-pole) device. It combines thermal and magnetic trip mechanisms to provide overcurrent protection for electrical circuits—responding to both prolonged overloads and instantaneous short circuits. The thermal element heats up with excess current, triggering a trip after a time delay, while the magnetic element activates at higher fault currents for immediate interruption. Identified by the part number HFWF1100VL, this unit is designed to operate at 240 VAC with a 100 A rating, delivering a reliable means to interrupt current and protect conductors and connected loads in appropriate electrical installations. As a 1-pole 240 VAC breaker from Eaton's Cutler-Hammer line, it is intended for use where single-pole protection at 100 A is required.