Review on Murray MP120AFC 120 Volt Combination Interrupter by Nick Cleary

Picture shows 15A but I have 20A (as ordered) and it looks even better! It has 2 LEDs that provide feedback on the performance of the device. The AFCI circuitry constantly monitors the current and distinguishes between normal and unwanted arcing and tells me through the LED lights (whichever is on/off) what caused the last "cutoff". That means: accidental arcing, accidental arcing against earth or overcurrent. They knock old switches out of the water.