Square D QOB310 is a three‑pole bolt‑on miniature circuit breaker from Schneider Electric’s Square D QOB family, designed for 240 V AC circuits with a rated current of 10 A. It delivers a 10 kA interrupting capacity at 240 V, providing robust protection for three‑phase loads, and it mounts via a bolt‑on jaw suited to QO‑style panels. This 3P device is intended for use in three‑phase distribution in commercial or light industrial electrical systems, offering reliable overcurrent protection for each phase while remaining compact enough for panelboards that require bolt‑on installation.
