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Old 10-31-2016, 04:39 AM   #1
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GFCI for Sub-Panel


Installing a sub-panel within my home. Some of the circuits of the sub-panel will have GFCI breakers installed for them in the sub-panel. Must the breaker within my main panel which serves the sub-panel therefore be a GFCI breaker or can I keep the standard trip breaker serving the sub-panel? Thanks.
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Old 10-31-2016, 05:03 AM   #2
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Re: GFCI for Sub-Panel


The breaker feeding the sub is a standard breaker.
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Old 10-31-2016, 08:41 AM   #3
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Re: GFCI for Sub-Panel


Why are you using GFI breakers, and not a GFI outlet instead on the circuit that needs protecting?
Far more expensive for breakers.
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Old 10-31-2016, 08:51 AM   #4
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Re: GFCI for Sub-Panel


There are reasons to use GFCI breakers instead of receptacles;

Accessibility, a GFCI must be accessible with out moving equipment and must not be so high to be unreachable.
I have 2 15 amp circuits for my spa tub, they are located behind the tub access panel. I used GFCI breakers.

Size of the electrical box. Old small metal electrical boxes can be difficult to fit a GFCI receptacle.
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Old 10-31-2016, 07:50 PM   #5
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Re: GFCI for Sub-Panel


As to why I'm using GFCI breakers, the branch circuits are for pool equipment. One of which must include a 20 amp twist lock outdoor receptacle - of which I am unable to find one of the GFCI variety. So, I'm putting the protection in the sub-panel. Another is a pool light, which I do not yet have the transformer so I am working ahead in case the transformer doesn't have any GFCI protection and just doing it at the sub-panel.

So, does everyone agree I don't need the GFCI breaker in my main to supply my sub?
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