Siemens QA120AFCP NS Circuit Breaker

Siemens QA120AFCP NS is a 20-amp, 120-volt, single-pole combination arc-fault circuit interrupter (AFCI) breaker that plugs into compatible Siemens panels to protect branch circuits from arc faults. As a type QAF2 AFCI, it provides enhanced protection for home electrical systems by detecting arc faults and quickly disconnecting power on that circuit. The 'plug-on neutral' design simplifies installation by providing a dedicated neutral connection at the breaker, which is a common arrangement for AFCI breakers used in residential wiring. This 1-pole breaker is rated for 20A continuous operation, suitable for general purpose circuits such as lighting and receptacle circuits in living spaces, bedrooms, and home offices where arc-fault protection is required by electrical codes. The device operates at 120V and fits standard 120V single-pole slots in compatible Siemens load centers, with a compact profile that aligns with other QA and QAF2 family breakers.