Afci & gfci on same circuit??

Discussion in 'Electrical Forum discussion & Blog' started by chuck b, Aug 27, 2012.

  1. chuck b

    chuck b sea-bee

    Messages:
    76
    Location:
    levering, michigan
    Wiring small cottage. Wish to have benefit of an Arc Fault Circuit Breaker for the wiring on the way to the GFCI protected bathroom from the panel. Is that advisable, effective and safe?

    Thinking that the hazards that an Arc Fault Interruptor guards against (over heating wires, nails from wall finishing installation-drywall, knotty pine board nails) contacting the wires inadvertantly, would not be protected by a GFCI receptacle further down the circuit from the panel and wiring travelling to the bathroom.

    I know code does not require this, but wondering if this would a bit more safety insurance. Please advise. Thanks.
  2. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    22,129
    Location:
    New England
    While maybe not as convenient if it gets tripped, you can put in a GFCI CB instead of a GFCI receptacle. The two devices should co-exist. See what the sparkies say.
  3. Chad Schloss

    Chad Schloss Member

    Messages:
    330
    Location:
    USA
    It's perfectly fine to have afci and gfci on the same circuit. If you are planning on one circuit for the bath, which you can do, you must use a 20a breaker and run 12 gauge wire to the gfci and lighting in the bathroom. code requires a dedicated 20a circuit to serve the bathroom. this circuit cannot leave the bathroom or be tied into any other rooms.
    Last edited: Aug 27, 2012
  4. ActionDave

    ActionDave Electrician

    Messages:
    351
    Location:
    Colorado
    Nothing wrong with a GFCI recpt on a AFCI protected circuit. It is common in new homes with a wet bar located in somewhere in the house other than the kitchen.
  5. jbfan74

    jbfan74 Electrical Contractor

    Messages:
    131
    Location:
    Newnan, GA
    I would not go with the extra exspense, but it is your house, go for it.
    Are you also going to do the kitchen this way?
  6. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    22,129
    Location:
    New England
    Depending on where you live, AFCI breakers are now required in many home locations...you should check your local code cycle...IOW, you may not have a choice!
  7. Chad Schloss

    Chad Schloss Member

    Messages:
    330
    Location:
    USA
    AFCI Breakers are not required in bathrooms or kitchens or laundry rooms.
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