Eaton Cutler-Hammer HFD1020 20A 1P 277V Circuit Breaker | AmpState

The Eaton Cutler-Hammer HFD1020 is a purpose-built circuit breaker designed to protect distribution paths in panelboards, load centers, and other electrical distribution setups. With a 20 A rating, 1-pole configuration, and a 277 V operating voltage, this breaker is a reliable choice for commercial and industrial circuits that demand dependable overcurrent protection without compromising panel compatibility.

• Amperage: 20 A
• Poles: 1-Pole
• Voltage: 277 V
• Manufacturer: Eaton Cutler-Hammer
• Part Number: HFD1020
• Applications: Panelboards, load centers, and electrical distribution networks

Why this matters in real-world use: maintaining a consistent part number simplifies retrofit work and routine maintenance. If a project requires sticking to the exact HFD1020 specification, you’ll avoid compatibility pitfalls that can arise from substitutions. This ensures your protective device matches the existing protection scheme, wiring, and labeling, helping you minimize downtime during upgrades or service calls.

Key use cases

• Retrofit projects where 277 V distribution is standard and old breakers must be replaced without reconfiguring the panel.
• Maintenance planning for facilities with multiple Eaton Cutler-Hammer panels that rely on consistent part numbers for stock and serviceability.
• New installations in commercial settings that require a 20 A, 1-pole solution within 277 V circuits.

Practical considerations for installers and facility managers: ensure the target panel supports a 277 V, 1-pole, 20 A breaker in the HFD series. If you’re unsure about fit or cross-compatibility with your existing panelboards or load centers, AmpState offers direct assistance to confirm compatibility and correct part matching. Need help matching a part number or confirming compatibility? Message us and we’ll help you confirm fit. This item is available from AmpState, making it a convenient, reliable option when you’re stocking spares for maintenance programs or planning critical replacements.

In short, the HFD1020 is more than just a breaker—it’s a targeted solution for reliable circuit protection where 277 V distribution is used, backed by Eaton’s engineering and AmpState’s support. Whether you’re restoring an aging panel or provisioning a new installation, this 20 A, 1-pole, 277 V breaker helps you maintain consistent protection without the guesswork.