Square D QO Combination Arc Fault Breaker QO single pole CAFCI combination arc-fault circuit interrupter circuit breaker. Helps protect wires from arcing faults and is intended for overload and short-circuit protection of electrical systems. Time-Saver Diagnostics provides advanced trip indication technology, helping identify the type of fault that has occurred faster. Equipped with the exclusive Visi-Trip indicator. When tripped, the handle snaps to a midpoint position and a highly visible, red indicator easily identifies the tripped breaker. Compatible with QO load centers. 1 space required. Limited lifetime warranty. 120 volt. UL Underwriter's Laboratories listed. Amperage 15A, 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 Clamshell WARNING Cancer and Reproductive Harm- www.P65Warnings.ca.gov