Square D Homeline Plug-On Neutral Dual Function Breaker Plug-on neutral dual function circuit breaker. Engineered to meet NEC National Electrical Code requirements. Combines two critical technologies combination arc fault protection and ground fault protection in one easy to install device. Reduces cost and eliminates the hassle of using two separate devices to provide essential protection. Integrated with time saver diagnostics, a unique feature that provides additional circuit information and minimizes troubleshooting at the touch of a button. Compatible with all plug on neutral Homeline load centers only. 120 VAC, 10,000 AIR. ANSI American Nation Standards Institute certified and UL Underwriter's Laboratories listed. Limited lifetime warranty. Amperage 20A, Number of Poles 1-Pole, Interruption Type CAFCI/GFCI, 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