Eaton / Cutler-Hammer CH2125 Miniature Circuit Breaker

No. The CH2125 is engineered specifically for Eaton and Cutler-Hammer Type CH load centers. It utilizes a 3/4-inch plug-on format, which will not physically engage the bus bars in standard 1-inch Type BR panels.

Type CH breakers feature a 3/4-inch width per pole. This 2-pole model requires two standard spaces, occupying a total width of 1.5 inches on the panel bus.

Yes. This unit carries an HACR listing, making it compliant for providing overcurrent protection on heating, air conditioning, and refrigeration equipment circuits.

Yes. Since Eaton acquired the Cutler-Hammer brand, modern Eaton CH series breakers are the direct and approved replacements for legacy Cutler-Hammer units with the exact same catalog number.

Because the box lugs are dual-rated for both copper and aluminum, electricians terminating aluminum wire should wire-brush the stripped ends and apply a listed anti-oxidant joint compound to prevent oxidation and ensure a stable long-term connection.

Always use a calibrated torque tool and tighten the lugs strictly to the inch-pound specifications printed on the side label of the breaker. Relying on hand-feel can result in loose connections and hazardous thermal buildup under heavy loads.