Panelboard replacement and AFCI?

[olc]

Quick question:
If replacing a panelboard (say a late 70s Stab-lok), is it any problem to use ACFI circuit breakers for the existing circuits? (single pole for lighting, kitchen, laundry)

 

[tom baker]

Sure its OK, and is a good option from a liability standpoint. But you can run into issues with shared neutrals which will cause the AFCI to trip. There is an exception for you to consider see 210.12 (D) exception. I would clarify on your quote so the HO understands cost vs safety

 

[olc]

Thanks.
A few years ago we ran into an issue with loadcenters that had 2-pole circuit breakers (for lighting/receptacles). There is a product for that. I can't remember the details.
This current project does not have any (2 pole circuit breakers) (other than range, dryer etc.).

 

[olc]

Related question -
In the older apartments there may not ba separate bathroom circuit and GFI receptacles were installed. If the circuit breaker is changed to AFCI, will the connected GFI receptacle be an issue?

 

[ActionDave]

Related question -
In the older apartments there may not ba separate bathroom circuit and GFI receptacles were installed. If the circuit breaker is changed to AFCI, will the connected GFI receptacle be an issue?

No. The GFCI will work just fine, it works on a pretty basic system of amps go in = amps go out, no trip.

AFCI on the other hand have some wacky wave form sensing algorithm that is supposed to tell if there is badness in the electrical going on in the house somewhere. What you end up with is a breaker that trips on all kinds of normal electronic loads, kinda like a dog that barks every time it hears a noise.