Square D™ Arc Fault Circuit Breaker, QO® Series, 1 Pole, 20 A, 120/240 VAC, 10 kA, Pressure Plate Connection, 12 to 8 AWG Al, 14 to 8 AWG Cu Wire, Bolt On Mount, For Use With: NQ Series Panelboards, 4.75 in H x 0.75 in W x 2.91 in D
3/8 in Taller And Wider Than Standard Wallplates; Compatible With All Individual QuickPort Modules; Individual Port Configuration Allows Specification Flexibility; Narrow Module Width Allows High Port Density in a Small Area