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Discussion Starter #1
I'm running a line for a new sub panel for an outdoor hot tub. The company (Hot Springs) provides the sub panel with GFCI breakers (20 & 30 amps).

I have a main panel with Eaton BR AFCI breakers in a newly built home.

Do I need a 50amp AFCI breaker in the main panel if I have GFCI breakers in the sub panel? If so, will a GFCI work just as well?

I have to say, I'm having a hard time finding a 50 amp Eaton BR AFCI breaker. I don't mind spending the extra $100 for a lifetime of safety and piece of mind.
 

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Discussion Starter #3
Thank you! Is that because the sub panel breakers already provide the protection for the whole circuit?
 

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Discussion Starter #6
Understood. Exterior equipment and sub panel feeders do not require AFCI protection per NEC.

That said, is there a safety/fire prevention benefit to having that level of protection?
 

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As far as I know, there's not really anything on the market for protecting feeders. They make 50A GFCIs, but they are intended for branch circuits. Might get nuisance tripping if you used it on a feeder. The best protection would be to install the feeder in tubing, as opposed to using a cable.
 

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Discussion Starter #8
Thank you Luke. That makes perfect sense, since I have been unable to locate a 50amp AFCI anywhere, including online, home centers, and electrical supply houses, although I still had a couple more in my area to check.

I have run wires through plastic #40 conduit to the sub-panel. My neighbor, a retired master electrician, is going to take a look at it in a couple of days.

Appreciate the response.
 
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