Square D QOB230VH 2-Pole Circuit Breaker 30A 240V

The Square D QOB230VH is a bolt-on, two-pole miniature circuit breaker rated for 30 A on 120/240 V circuits, with a 22 kA interrupt rating at 240 V. It is designed for bolt-on mounting in Square D QOB panel bases and load centers, providing overcurrent protection for multi-wire branch circuits in residential or light-commercial distributions. The unit accepts copper or aluminum conductors from 14 AWG to 8 AWG. It employs thermal-magnetic trip technology to protect against overloads and short circuits. Its dimensions are about 3.5 inches tall, 1.5 inches wide, and 2.9 inches deep, matching the standard QOB form factor. As part of the QO/QOB family, the QOB230VH is the bolt-on alternative to the plug-on QO breakers, suitable for installations that require bolt-on mounting in compatible panels and mounting bases. This 2P 30A device is intended for protecting 240 V circuits in bolted connection panelboards and is commonly used on circuits where a dedicated 2-pole 30 A protection is required.