Eaton / Cutler-Hammer CH310 Miniature Circuit Breaker

No. Eaton CH breakers have a 3/4-inch pole width and a specialized mounting clip, while Eaton BR breakers are 1-inch wide with a standard stab connection. You must use a Type CH load center.

No. Although both Eaton CH and Square D QO breakers are 3/4-inch wide, they have different bus bar connections and are not interchangeable or UL listed for each other's panels.

The CH310 requires three standard 3/4-inch spaces in the panel, making the total physical width 2.25 inches.

Yes, standard Eaton Type CH circuit breakers are HACR rated, making them suitable for use with heating, air conditioning, and refrigeration equipment.

Yes, the box lugs on this breaker are rated for both copper (Cu) and aluminum (Al) wire, accepting gauges from 14 AWG to 6 AWG.

No. As a factory-assembled 3-pole breaker, it features an internal common trip mechanism and a single handle to operate all three poles simultaneously.

No. A 3-pole breaker requires a 3-phase load center to properly connect to three separate phase bus bars. Most standard residential panels are single-phase and cannot accommodate a 3-pole breaker.