Square D QOB330U Molded Case Circuit Breaker is a 30-amp, 240-volt, three-pole protection device from the Square D QOB family, designed for bolt-on installation in compatible enclosures. This 3P molded‑case breaker provides thermal‑magnetic protection with an interrupt rating of 10 kA at 240 V, making it suitable for safeguarding feeders and branch circuits in commercial or light industrial panels. The unit accepts conductors from #14 to #8 AWG (14-8 AWG) and is configured for bolt-on mounting, delivering secure, code‑compliant performance in distributed electrical systems.
