Square D™ Ground Fault Circuit Breaker, QO® Series, 2 Pole, 50 A, 120/240 VAC, 10 kA, Box Lug Connection, 12 to 4 AWG Al, 14 to 6 AWG Cu Wire, Plug In Mount, For Use With: QO® Load Center and NQ Series Panelboards, 4.12 in H x 1.5 in W x 2.91 in D
QWIK-GARD® circuit breakers provide overload and short circuit protection, combined with Class A ground fault protection. Class A denotes a ground fault circuit interrupter that will trip when a fault current to ground is 6 mA or more, for people protection. Do not connect to more than 250 ft. of load conductor for the total one-way run to prevent nuisance tripping.