Authentic Siemens B2020 – 20A Tandem Miniature Circuit Breaker

Part of the B-frame family, the Siemens B2020 is a 20/20A tandem circuit breaker that doubles your circuit capacity without requiring a larger enclosure. Built for commercial and industrial applications, this space-saving duplex unit delivers reliable thermal-magnetic protection for two independent 120VAC circuits. It mounts into Siemens P1, P2, P3, P4, and P5 panelboards, serving as a replacement for standard 1-pole BL breakers. Rated at 10 kAIC and HACR certified.