Big Sale Siemens BQ2B040 – 40A 2 Pole Molded Case Circuit Breaker

Operating at a standard 10kAIC rating, the Siemens BQ2B040 delivers essential overcurrent and short-circuit defense for commercial facilities. This 40A, two-pole unit utilizes proven thermal-magnetic trip technology to maintain electrical system integrity. It fastens securely into Siemens P1, P2, and P3 panelboards via a rugged bolt-on connection. Fully HACR rated for HVAC applications, it also functions as a reliable cross-reference alternative for BAB2040 and THQB2140 installations.