Siemens BQ3E050 Molded Case Circuit Breaker

Siemens ITE BQ3E050 Molded Case Circuit Breaker is a three-pole, 50‑amp, 240‑volt MCCB designed for general‑purpose overcurrent protection in distribution panels. Part of the Siemens BQ family, it provides a common‑trip across all three poles to ensure simultaneous disconnection of protected conductors during faults. The device supports multiple termination options depending on variant, including bolt‑on mounting and load‑lug terminals, and it fits a compact 3 in × 3 in × 3 in (W × H × D) footprint. It is UL 489 listed with a 10 kA interrupting capacity at 240 V, enabling reliable fault clearance at this voltage. Typical applications include protecting feeders and branch circuits in commercial or light industrial electrical systems, as part of distribution protection within compatible Siemens panels and enclosures. With a 50 A rating, 240 V operation, 3 poles, and a common trip, the BQ3E050 delivers coordinated protection in compact form for space‑constrained installations.