Siemens Q115DFCSA Circuit Breaker

Siemens Q115DFCSA is a 15-amp, 120-volt single-pole dual-function circuit breaker that combines arc-fault (AFCI) and ground-fault (GFCI) protection in one plug-in device for residential panels. This CSA-listed unit is intended for Canadian installations and is part of the Siemens Q-series, designed for plug-on load-center compatibility. The breaker is UL-listed as type QFGA2, confirming its dual-function protection and electrical compatibility, and it carries a 10 kAIC interrupting rating, suitable for typical residential fault currents. The Q115DFCSA protects a 120V circuit at 15A, making it appropriate for lighting and receptacle runs where both AFCI and GFCI protection are mandated. Siemens also offers related variants like Q115DFN (Plug-on Neutral) and Q115DFP (Plug-on Neutral), which share the same 15A/120V rating and dual-function protection but differ in neutral connection configuration; the CSA variant you’re seeking is the Q115DFCSA for Canadian markets. Install in standard Siemens load centers to provide comprehensive electrical safety in living spaces, kitchens, and other areas where combined AFCI/GFCI protection helps prevent arc faults and ground faults.