Miniature Circuit Breaker, Amps 125 A, AC Voltage Rating 120/240V AC, Circuit Breaker Type High Interrupting Capacity, Number of Poles 2, DC Voltage Rating Not Rated, Circuit Breaker Actuator Paddle, Circuit Breaker Mounting Style Bolt On, Compatible Panelboard/Load Center Series QO, Phase Single, Series QOB, Max. AIR Rating 22kA at 120/240V AC, For Use With Square D NQOD Panelboards, Terminal Connection Lug, Frame Size 100A/QO, Length 3.5 in, Width 1.5 in, Depth 2.91 in