Cutler-Hammer HFD1020 Circuit Breaker 1P 277V

The Cutler-Hammer HFD1020 is a one-pole, 20-amp circuit breaker rated for 277 VAC. It provides overcurrent protection for a single branch circuit by interrupting current when loads exceed 20 amps, helping prevent wiring damage and equipment failure in compatible panels. Identified by the HFD1020 model, this 1P device is designed specifically for 277V systems and supports installation where a 20A, single-pole protector is required. In typical 277V installations that use such circuits, it safeguards individual loads powering lighting, receptacles, and related equipment. Because the unit is a 1P breaker, service and replacement in compatible panels can be straightforward, minimizing downtime during maintenance or upgrades. Ensure the panel wiring and clearance meet applicable electrical codes and that the device's 1P, 20A rating matches the circuit requirements.