Eaton BRN140GFC - 40 A, 120 V, 1-Pole Plug-In Circuit Breaker | AmpState

Engineered by Eaton, the BRN140GFC is a 40A, 120V, 1-pole plug-in molded case circuit breaker designed to shield your electrical system from overloads and short circuits. Built for dependable branch circuit protection in panelboards and load centers, this breaker delivers reliable protection where it matters most—whether you’re outfitting a home, a small business, or a light industrial space.

Why this breaker stands out

• Fast plug-in connection for streamlined installation and quick replacement, minimizing downtime on busy electrical projects.
• Thermal-magnetic trip unit provides stable, repeatable protection by responding to both sustained overloads (thermal) and short-circuit conditions (magnetic), helping to prevent damage and nuisance trips.
• OEM-compatible design — specifically matched to Eaton OEM load centers and panelboards for a secure, reliable fit and consistent electrical performance.
• Versatile application suitable for residential, commercial, and light industrial circuits, making it a practical choice for a wide range of projects.

Technical snapshot

• Manufacturer: Eaton
• Part number: BRN140GFC
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 40A
• Voltage rating: 120V
• Number of poles: 1
• Mounting style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use cases

Use the BRN140GFC to protect individual branch circuits in panelboards and load centers across a variety of settings. It’s an excellent choice for:

• Residential subpanels and main distribution panels where reliable, easy-to-replace protection is needed
• Commercial lighting, receptacle, or equipment circuits that demand quick plug-in serviceability
• Light industrial layouts with frequent panel maintenance or upgrades

Installation and compatibility

Because this is a plug-in molded case breaker, installation is straightforward in compatible Eaton OEM panelboards and load centers. Its plug-in design minimizes work at the panel bus, while the thermal-magnetic trip unit ensures predictable protection behavior across temperature variations and electrical loads. For ongoing reliability, pair this 40A, 120V, 1-pole breaker with matching panels designed to accept Eaton BR-series and BRN-line breakers.

What problems it solves

• Prevents damage from overcurrent and short circuits on branch circuits
• Reduces downtime with fast, tool-free replacement in compatible panels
• Provides consistent protection performance across residential, commercial, and light industrial environments

How it compares to typical alternatives

Compared to non-plug-in or bolt-on breakers, the BRN140GFC offers quicker installation, easier replacement, and a cleaner, more reliable connection to the panel. Its thermal-magnetic trip system delivers coordinated protection without the complexity of advanced electronic trip devices, making it a robust, maintenance-friendly choice for standard protection needs.

Practical tips for best results

• Verify panel compatibility with Eaton BR-series breakers before installation to ensure a secure fit.
• Keep a few spare plug-in breakers on hand for rapid maintenance and minimizing downtime during service events.
• Use the correct amperage rating for each branch circuit to balance protection and nuisance tripping.
• When replacing an old breaker, power down the panel and follow standard safety precautions for electrical work.

Whether you’re upgrading a residential panel, outfitting a small commercial space, or provisioning a light industrial installation, the Eaton BRN140GFC delivers dependable, fast-acting protection with straightforward installation. Trust in a proven solution from AmpState to safeguard your electrical distribution with confidence.