Eaton Cutler-Hammer CHFN120GF 20A 1P 120V Circuit Breaker, GFCI, Plug-On | AmpState

Meet the Eaton Cutler-Hammer CHFN120GF 20A 1P 120V GFCI Plug-On Circuit Breaker — a compact, reliable safeguard for circuits in panelboards, load centers, and electrical distribution. With GFCI protection built in and a plug-on design, it's engineered for quick replacement jobs and straightforward upgrades to existing electrical panels.

Why choose CHFN120GF? This 20 A, 1-pole device delivers essential ground-fault protection for general circuits while maintaining compatibility with the original equipment BOM. Its plug-on configuration means clean, efficient installation without invasive rewiring or accessory parts, making it an excellent choice for both professional electricians and capable DIYers handling panel upgrades or repairs.

• GFCI protection at the circuit level: detects ground faults and interrupts power to shield people and equipment in reachable circuits.
• Plug-On design for ease of installation: snap-in mounting on standard bus systems in compatible Eaton panelboards and load centers.
• 1-pole, 20 A, 120 V: standard rating for everyday branch circuits and general-purpose outlets requiring GFCI protection.
• Original BOM alignment: part number CHFN120GF ensures fit with existing assemblies and documentation, simplifying replacements.
• Ideal for replacements and spares: stock this part to keep your BOM aligned to the original specification and minimize downtime during panel service.
• AmpState availability and support: AmpState offers this item and can help confirm compatibility with your specific panel and configuration.

Specifications at a glance

• Manufacturer: Eaton Cutler-Hammer
• Part Number: CHFN120GF
• Product Type: GFCI Circuit Breaker
• Amperage: 20 A
• Poles: 1
• Voltage: 120 V
• Mounting type: Plug-On

This CHFN120GF is designed for panelboards and distribution systems where dependable GFCI protection is required on single-pole circuits. Whether you’re performing a retrofit, stocking spares to maintain BOM integrity, or replacing a failed breaker, this unit from Eaton delivers predictable performance and long-term reliability. If you’re unsure about compatibility with your specific panel, message AmpState and we’ll help verify fit against your equipment and part numbers.