Siemens QA115AFCCSA 15-Amp 1-Pole Combination AFCI Breaker — Type QP

The Siemens QA115AFCCSA 15-amp combination AFCI breaker protects against the fault a standard breaker can't see — the arc. A loose terminal, a nicked cable behind drywall, or a cracked lamp cord can draw an arc that never trips a thermal-magnetic breaker but throws enough heat to start a fire, and combination arc-fault detection is what the Canadian Electrical Code requires on most living-area circuits in new and rewired work. Onboard electronics watch the current waveform and distinguish a genuine arc from the normal switching noise of dimmers, motors, and electronics, so the circuit holds through everyday operation and opens on a real fault. Type QP plug-in construction snaps into Siemens EQ, PL, and ES load centres, and the coiled pigtail neutral lands on the panel neutral bar in one clean run. A diagnostic indicator distinguishes an arc-fault trip from an overload, so troubleshooting starts with an answer instead of a guess. CSA-certified and UL-listed, sourced through verified Siemens supply — not the refurbished or counterfeit stock that circulates on open marketplaces — it protects a 15-amp lighting or receptacle circuit and asks nothing further of it.