Siemens B120 Single Pole Circuit Breaker, 20 Amp, 120V

The Siemens B120 Single Pole Circuit Breaker is engineered for reliable protection in residential and light commercial electrical panels. Rated at 20 amps and 120 volts, this bolt-in breaker features a 10KAIC interrupting rating, ensuring safety against overloads and short circuits. Its compact, single-pole design makes it ideal for standard 1-inch panel slots, offering straightforward installation and compatibility with Siemens load centers.

UL-listed and built to meet industry standards, this breaker provides dependable performance with non-interchangeable trip technology. Whether for new construction or panel upgrades, the B120 delivers consistent protection for lighting circuits, outlets, and small appliances. Pair it with Siemens panels for seamless integration and long-term reliability.