AFCI after GFCI or GFCI after AFCI

1130 Views 8 Replies 4 Participants Last post by brric, Jan 10, 2016

dalepres

Discussion Starter · Dec 26, 2015

I just completed box installation and powering it up to the first set of outlets in my shed but I am already thinking of how to improve it and make it more safe. I found a 50-amp, 2-pole, GFCI for my Siemens gen-ready panel. Before I buy it, I want to get more info on how best to do combination of GFCI
I realize that AFCI is not required in the shed but I'm still considering it - not completely sure yet. But my question is, if I do the GFCI in the house is it safe/legal to put in an AFCI in the shed panel?

I've read several threads talking about the other way - AFCI in the panel and a GFCI in the first receptacle box but I haven't found a Siemens 50-amp, 2-pole, AFCI so AFCI followed by GFCI is less appealing.

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rjniles

· #4 · Dec 26, 2015

I would not use AFCI or GFCI as a main breaker. If it trips you lose all power. Use the protection on the branch circuits that require it.

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rjniles

· #7 · Dec 26, 2015

dalepres said:
There are dual function GFCI/AFCI breakers available - and I don't mean combo AFCI breakers.

http://w3.usa.siemens.com/powerdist...ial-circuit-breakers/Pages/Dual-Function.aspx

http://www.amazon.com/gp/product/B00MGTPNVY

(I have Siemens in the house and Homeline in the shed. Yeah, I know; a pain keeping breakers straight but I have had the Homeline around for a few years.)

Alternatively, I can put an AFCI breaker with a GFCI for the first outlet but that doesn't protect the lighting-only circuits.

Why would you need GFCI protection for lighting only circuits? GFCI is for personnel protection.

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