Square D QOB1301021 Molded Case Circuit Breaker

QOB1301021 is a Square D (Schneider Electric) QO-series bolt-on miniature circuit breaker rated at 30 A, 1 pole, for 120/240 V AC, with a 10 kA short-circuit current rating and AC shunt capability. It is designed for bolt-on installation in compatible QOB panels, delivering reliable overcurrent protection for individual branch circuits in residential and light-commercial electrical systems. This 1P, 30 A device carries the catalog number QOB1301021 and is part of the QOB family, commonly used in load centers that specify bolt-on breakers with shunt-trip or AC-shunt options. Key specs include: 30 A, 1P, 120/240 VAC, 10 kAIC, bolt-on mounting, AC shunt; catalog number QOB1301021.