Siemens BQ2B125 N Molded Case Circuit Breaker

Siemens BQ2B125N Molded Case Circuit Breaker is a two‑pole, 125 A protective device designed for 120/240 VAC distribution in commercial and light‑industrial systems. As part of the Siemens BQ family, it provides thermal‑magnetic overcurrent protection with a 10 kA interrupt rating at 240 V, enabling safe interruption of fault currents in typical electrical panels. The unit features bolt‑on mounting and load‑side lug terminals, aligning with standard BQ series wiring and enclosure configurations. A two‑pole construction ensures both hot legs of a 240 VAC circuit are disconnected simultaneously, delivering reliable dual‑pole protection for branch circuits and feeders. This model is well suited for installations that require robust protection around the 125 A level, offering a compact molded‑case design that integrates with Siemens panelboards and related switchgear built for BQ devices.