Schneider Electric's Square D QOB220 is a two-pole, 20-amp miniature circuit breaker in the QO family, rated for 120/240 V AC with a 10 kA interrupt rating. It uses bolt-on mounting for secure panel installations and is designed to provide branch-circuit overcurrent protection in compatible Square D/QO panels. Commonly used to protect lighting, receptacle, and small-appliance circuits in residential and light commercial panels, the QOB220 delivers reliable, code-compliant protection in a compact, standard form factor.
