Schneider Electric QOB120AFI Bolt On Circuit Breaker

Square D by Schneider Electric QOB120AFI is a 1-pole bolt-on AFCI circuit breaker in the QOB family, rated for 20 A on 120/240 VAC and built for bolt-on installation in QOB-series load centers. It combines thermal-magnetic overcurrent protection with arc-fault sensing to help prevent fires caused by arcing on a single-pole, single-phase branch circuit. The device carries a 10 kA interrupting rating at 120 VAC, offering robust fault current handling for typical residential or light commercial circuits. As a 1P/1PH bolt-on breaker, the QOB120AFI is designed to drop into QOB panels with a bolt-on mounting style, ensuring a secure, code-compliant AFCI protection option where such protection is required. This model is intended for use on standard 20-amp circuits feeding outlets, lighting, and receptacle loads, and it aligns with Square D’s AFCI product family for panel upgrades or new installations that demand arc-fault interruption without replacing the entire panel. The QOB120AFI’s arc-fault functionality and compatible form factor make it a straightforward choice when AFCI compliance is needed in QOB-series installations, standing as part of Schneider Electric’s line of bolt-on protection devices for reliable branch circuit protection.