Residential Main Breakers
Siemens main breakers (MBK) are designed to allow for convertibility and invertibility of Siemens load centers. With truly ground-breaking performance, the MBK can do just about anything it is asked.
![Residential Dual-Function Circuit Breakers (AFCI & GFCI) Residential Dual-Function Circuit Breakers (AFCI & GFCI)](https://assets.new.siemens.com/siemens/assets/api/uuid:7a86b2ac-3305-4223-aee6-b0f768107e7a/width:100/quality:low/P-USLV-XX-00487P.png)
Siemens main breakers (MBK) are designed to allow for convertibility and invertibility of Siemens load centers. With truly ground-breaking performance, the MBK can do just about anything it is asked.