Siemens Q115DFN GFCI AFCI Dual Function Circuit Breaker

Siemens Q115DFN is a 15 A, 120 V single-pole dual-function circuit breaker that provides both arc-fault (AFCI) and ground-fault (GFCI) protection in a single device. Designed for Siemens plug-on neutral load centers, this Q-line breaker uses the QFGA2N configuration (Plug-On Neutral) to simplify wiring and labeling. With 10 kA interrupting capacity (AIC) at 120 V, it withstands typical residential fault currents, and its combination AFCI/GFCI protection helps prevent both arc faults and ground faults on the protected circuit. The unit is UL-listed and rated for 120 VAC operation, with a 15 A maximum current rating and a 1-pole form factor. The Q115DFN is part of Siemens' dual-function family that combines AFCI and GFCI into a single device for upgraded safety in living spaces where both arcing and ground faults must be detected. Typical applications include branch circuits in kitchens, baths, or other living areas where NEC requirements call for both arc-fault and ground-fault protection.