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Guest Message by DevFuse

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Use of GFI outlet for charging

charging level 1

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3 replies to this topic

#1 OFFLINE   jpf44736


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Posted 26 April 2017 - 07:14 AM

Does anyone know if it's recommended to use a Ground Fault Interrupter (GFI) outlet  for a home, level 1 charger? The outlet is inside a garage but the car is outside while charging. It seems like a good idea to use a GFI for safety but they sometimes trigger on a transient and that would shut off the charge current very quickly which may not be good for the external/internal charger.

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#2 OFFLINE   Levi Smith

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Posted 26 April 2017 - 07:34 AM

As far as I know, a GFI is a good idea for any outlet that is outside or otherwise potentially exposed to water.


However, I believe the EVSE(charger) is itself a GFI and that should be the only part that would get wet from what you're describing...


Personally, my garage isn't on a GFI and whenever I charge the car outside the garage, it's just the connector and cable  of the EVSE that is outside, so any potential issues(which there shouldn't be anyway) would all be on the EVSE side of things and the EVSE itself is inside the garage.


But plenty of people plug their EVSE's into GFI outlets all the time(since that's what most outdoor outlets are these days) and I've not heard of troubles.  Seems like the only issue most run into are broken EVSE's or pulling too much amperage from outlets...

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#3 OFFLINE   bdginmo


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Posted 26 April 2017 - 10:45 AM

You shouldn't have a problem with a GFCI and they're actually required by code in the garage in most areas anyway. LIke Levi said the EVSE itself probably has a ground fault interrupter builtin. Just get a good one. The Leviton brand has a good reputation and is sold at Home Depot. That's what I use. I never have a problem with them nuisance tripping.   

#4 OFFLINE   stolenmoment


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Posted 27 April 2017 - 05:16 AM

I have a GFI on mine, and it did pop off once, last year.  I don't recall any actual cause that I could blame it on.

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