B120 - Siemens - 20 Amp Circuit Breaker

The Siemens B120 circuit breaker is engineered for dependable overcurrent protection in electrical distribution systems. Featuring a thermal-magnetic trip mechanism, it responds swiftly to overloads and short circuits, ensuring system safety. Its bolt-on design facilitates secure and straightforward installation in compatible panelboards. The breaker accommodates wire sizes ranging from 14 to 10 AWG for copper and 12 to 10 AWG for aluminum, providing flexibility in wiring configurations. With a 10 kA interrupting capacity at 120V AC, the B120 is suitable for various residential and light commercial applications.