Quick note to Sparky:
I feel pretty certain that there is not a 60 amp, 2 pole AFCI. There are 60 amp, two pole GFCI breakers, but no AFCI of which I am aware.I believe that Cutler-Hammer is the only manufacturer with a two-pole, and we stop at 20 amps.
There are actually 2 different two pole AFCI available. One is a standard 240 volt, 2-pole, and the other is what we call a 2 pole independent trip (AFIT). It allows for AFCI protection on circuits that contractors refer to as “multi-wire,” “shared neutral,” or “home run.” These are two individual 120-volt circuits that share a neutral. The AFIT is a two-pole breaker with two independent 120-volt circuits. The breakers trip independently on overloads or short circuits, but trip in common on an arcing fault. For contractors that use 3-wire circuits this is a huge labor savings over wiring two individual 1 pole breakers, and it will allow them to continue this wiring practice.
