Miniature Circuit Breaker, Amps 50 A, AC Voltage Rating 120/240V AC, Circuit Breaker Type Ground Fault Equipment Protection, Number of Poles 2, DC Voltage Rating Not Rated, Circuit Breaker Actuator Paddle, Circuit Breaker Mounting Style Bolt On, Compatible Panelboard/Load Center Series NQ, QO, Phase Single, Series QOB, Max. AIR Rating 10kA at 120/240V AC, For Use With QO Load Centers and NQ Panelboards, Terminal Connection Lug, Frame Size 100A/QO, Length 4.12 in, Width 1.5 in, Depth 2.91 in