Schneider Electric QOB350 Molded Case Circuit Breaker

QOB350 is Schneider Electric’s Square D bolt-on three-pole molded‑case circuit breaker, rated at 50 A and 240 V AC, with a 10 kA short‑circuit interrupting capacity. This unit belongs to the QOB family and is designed for bolt‑on installation in panelboards that accept QOB breakers, delivering thermal‑magnetic protection for 3‑phase circuits. It accommodates conductors from 8 AWG up to 2 AWG and is commonly used to protect feeders or branch circuits in commercial or multi‑phase installations that run on 240 V. With its 3P/50A rating and bolt‑on form, the QOB350 is suited for protecting motors, compressors, and other 240 V loads in appropriate Square D/QOB‑equipped panels.