MWBC and AFCI??

[ActionDave]

In my mind I can imagine a 14-3 to switch box. Red & 14-3 neutral protect the AFCI portion of the circuit. Black & neutral from a different circuit serve their own loads. Wouldn't this setup satisfy edward's description & work ? Granted there is the chance to overload the neutral with the black wire

Not legal but would funtion.

 

[arion]

fix it

fix it

change that to a dp 15 afci and it will then be code compliant