Siemens Q115DF Dual Function AFCI/GFCI Circuit Breaker, Single Pole, 120V, 15AThe Dual Function Circuit Breaker combines GFCI and AFCI, protecting against both Arc Faults and Ground Faults. This, along with the new Self Test feature, makes it the first in class in electrical safety for homeowners. Enables the dual function circuit breaker to automatically & continuously test itself to ensure that it is working properly. If it is detected that the device has been compromised, it trips itself & locks out the homeowner from