Thermal-magnetic trip technology ensures reliable overcurrent protection for circuits
Insta Wire connectors enable faster and easier installation
Compatible with Siemens P1-P5 panelboards for seamless integration
Fully HACR and SWD rated for enhanced safety and compliance
Substitutes for legacy breakers for flexible replacement options
Summarized by Shop
Built for commercial applications, the Siemens B120 is a 1-pole, 20A molded case circuit breaker. It utilizes thermal-magnetic trip technology to provide dependable LI overcurrent protection. This BL-type bolt-on MCCB mounts into Siemens P1 through P5 panelboards. It serves as a reliable substitute for legacy BAB1020, TEB111020, and BDB12