Square D QOB230VH U Molded Case Circuit Breaker

The Square D QOB230VH is a 30-amp, 2-pole molded‑case circuit breaker designed for bolt‑on installation in Square D QOB mounting bases. It is rated for 120/240 VAC and provides a 22 kA interrupting capacity at 240 VAC, enabling reliable protection for branch circuits against overloads and short circuits. The unit employs thermal‑magnetic trip technology to coordinate overload protection with fast short‑circuit interruption. As a QOB bolt‑on device, it requires a compatible mounting base and fits within Square D load centers that support bolt‑on breakers; the 2‑pole design protects both hot legs of a 120/240 VAC circuit. This model is intended for use in residential and light commercial panels needing a 30 A, two‑pole protection on 120/240 VAC circuits, and it should be paired with the appropriate QOB mounting hardware to ensure proper seating and clearance. Ensure the panel accepts QOB bolt‑on breakers and that wiring complies with local electrical codes.