Schneider Electric Square D QOB230 Circuit Breaker

The Schneider Electric Square D QOB230 is a 2‑pole bolt‑on miniature circuit breaker rated for 30 amps and 120/240 V, designed to fit QOB bolt‑on installations in compatible Square D panels. It employs a thermal‑magnetic trip with a 10 kA interrupting rating to protect two‑pole branch circuits from overloads and short circuits in residential, commercial, or light‑industrial panels that accept QOB devices. Bolt‑on mounting uses standard QOB hardware, with typical dimensions around 3.5 in (height) × 1.5 in (width) × 2.9 in (depth), and is intended for use in Square D QOB bolt‑on series enclosures and load centers. The QOB230 is part of Schneider Electric’s QO/QOB family, providing reliable, code‑compliant overcurrent protection for 120/240 V circuits in a 2‑pole configuration.