Eaton BR Circuit Breakers, Single and Double Pole Options, Amperage from 15A to 125A, Thermal-Magnetic Breakers, Plug On

Eaton BR circuit breakers are the industry standard for residential and light commercial electrical protection. These 1-inch thermal-magnetic breakers provide reliable overcurrent and short-circuit protection with a 10,000 AIC rating at 240V. Their quick-make, quick-break mechanism prevents nuisance tripping during mild overloads while responding instantly to dangerous short-circuit conditions.

Single-pole breakers (120V) are available from 15A through 30A for standard branch circuits, lighting, outlets, and dedicated appliance circuits. Double-pole breakers (240V) range from 15A through 125A, serving everything from water heaters and dryers at lower amperages to sub-panels and main disconnects at higher ratings.

Each BR breaker includes box-type lugs rated for both copper and aluminum conductors. The 15-20A models accept #14-4 AWG wire, while 30A breakers take #10-4 AWG. Mid-range breakers from 40-50A use #8-4 AWG, and 60A models accommodate #6-4 AWG for single-pole or #8-1/0 AWG for double-pole versions. Higher amperage double-pole breakers accept progressively larger conductors, with 100A models taking #4-1/0 AWG and 125A breakers accepting #4-2/0 AWG. Always consult local codes and consider temperature derating when selecting wire sizes.

BR breakers feature straightforward plug-on installation requiring no special tools. The breaker clips securely onto the bus bar with an audible click, and all models trip to the center position for clear visual indication of a fault condition. Beyond standard Eaton BR load centers, these breakers serve numerous applications including solar inverter disconnects, generator transfer switches, battery backup systems, and EV charging stations.

These BR breakers are fully compatible with the EG4 Grid Boss microgrid interconnect device, accepting them in both hybrid inverter ports (up to 90A) and smart ports (30A-125A configurations). The Grid Boss consolidates multiple electrical components into a single 200A service-rated device, automatically managing power flow between utility, solar, battery, and generator sources. BR breakers integrate seamlessly with this system's intelligent transfer switching for uninterrupted power during grid outages.

Every Eaton BR breaker carries UL listing and meets applicable NEMA standards and Federal Specification W-C-375b requirements. They are suitable for use with 60°C or 75°C rated conductors and carry HACR ratings where applicable. With millions installed nationwide, BR breakers have earned their reputation for dependability and widespread availability, making them a practical choice whether you're protecting a single circuit or building a complete microgrid system.