Bill_From_GA
Member
Arc Fault breakers also have some ground fault protection for equipment built in which is what causes them to trip whenever the neutral is shorted to an equipment ground. This protection is not GFCI protection which trips the outlet whenever there is a difference of 4-6 milliamps of current between the hot conductor and the neutral conductor. The ground fault protection in an arc fault breaker trips whenever the difference in current is over 30 milliamps which is known as GFP or ground fault protection of equipment. If GFP can work on the circuit, then GFCI will also work.