[RE-wrenches] Nuisance Tripping Hubble GFCI on EG4

[William Miller]

My experience has been that nuisance tripping of AFCI and GFCI devices can
be caused by excessive THD.

William Miller
Miller Solar.com
805-438-5600
www.millersolar.com

On Fri, Jun 5, 2026 at 11:25 AM Jay via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> I’ve seen GFCI have all sorts of weird issues. Not enough data to put the
> blame on the inverter.
> I’d try different  big load or move the device to a different outlet and
> see what it does.
>
> Good luck
>
> On Jun 5, 2026, at 9:19 AM, Drake Chamberlin via RE-wrenches <
> re-wrenches at lists.re-wrenches.org> wrote:
>
> 
>
> I called EG4 tech support about this question. They said to use a
> commercial grade, 20 A GFCI receptacle.
>
> My question is: "isn't a 15 and 20 A GFCI electronically the same? Isn't
> the only difference in the faceplate?"
>
> Thank you,
>
> Drake
> ---
>
>
> *Drake Chamberlin*
>
> *Athens Electric LLC*
>
> *Ohio Electrical Contractor’s License 44810*
>
> *NABCEP Certified PV Installation Professional*
>
> On 2026-06-04 11:40, Drake Chamberlin via RE-wrenches wrote:
>
> A commercial grade, Hubble GFCI receptacle is nuisance tripping on an EG4
> XP6000 inverter. It holds fine on an LED light bulb. Under a heavy load
> (PVC Heater), it trips after a minute or so.
>
> Is there a GFCI receptacle brand that works better with the XP6000
> inverter?
>
> Thank you,
>
> Drake
>
>
>
> *Drake Chamberlin*
>
> *Athens Electric LLC*
>
> *Ohio Electrical Contractor’s License 44810*
>
> *NABCEP Certified PV Installation Professional*
>
>
> --
>
>
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