GE Q-Line Arc Fault Breaker GE Q-line, 120 volt, single pole, arc fault circuit breaker detects arc faults in both parallel and series wiring. Features a dedicated calibration screw which is cemented to prevent shifting and creates a stable calibration for optimum performance. Features a tin-plated copper stab to create a reliable, permanent, and corrosion-resistant connection. Breaker case is constructed of heat-resistant thermoset for stability and structural integrity. 1 inch space required. UL Underwriter's Laboratories listed. Amperage 20A, Number of Poles 1-Pole, Interruption Type CAFCI, Voltage 120V, Frame Size 1-Space, Breaker Size 1 In., Mount Type Plug-In, Wire Size #14-8 AWG, UL Listed Yes, Pkg Qty 1, Package Type Card