I'm assuming your installation are residential in kitchen's with a dedicated circuit to the microwaves? I know the earlier AFCI's had alot of problems on inductive circuit and microwaves were one of them. Square D homeline series had a recall. The recalls had a blue test button.. where the newer ones are green..
NEC 210.12(A) does require you to have AFCI protection. And in some cases I believe you are required to have both AFCI and GFCI protection check with your local AHJ before replacing it with a MCCB..
Did you check current draw as well?
NEC 210.12(A) does require you to have AFCI protection. And in some cases I believe you are required to have both AFCI and GFCI protection check with your local AHJ before replacing it with a MCCB..
Did you check current draw as well?
