Cutler-Hammer DG221NRB is a 2-pole circuit breaker rated for 30 amps at 240 volts, supplied as a two-pack. It provides two-pole protection by interrupting both hot legs of a single-phase 240V circuit, helping protect conductors and connected equipment from overcurrent and short-circuit events. The DG221NRB designation identifies this specific unit in the Cutler-Hammer lineup, and the 1Ph label indicates its suitability for single-phase service. This configuration—30A, 240V, 2-pole—defines its essential electrical characteristics and supports proper trip behavior for appropriate panel or bus arrangements when used as a replacement breaker.
