[RE-wrenches] Ev charger off grid

[Chris Sparadeo]

Jay,

Most leve 2 EVSE do not require a neutral wire and come with internal GFCI
protection. It’s best to hardwire the charger to avoid additional GCFI OCPD
requirements and potential nuisance tripping  that come along with NEMA
14-50 plug in installations.

On Wed, Jun 3, 2026 at 9:34 AM Jay via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> And what if the charger doesn’t have a neutral, just a ground?
> Does the same issue apply?
>
> On Jun 3, 2026, at 7:14 AM, Tyrone Houck via RE-wrenches <
> re-wrenches at lists.re-wrenches.org> wrote:
>
> 
>
> I have seen chargers cause afci/gfci fault errors off grid when there were
> redundant neutral bonds and scenarios where a better electrode was needed.
> In my experience car chargers are sensitive to needing a solid ground
> connection.
>
>
>
>
> On Wed, Jun 3, 2026, 6:05 AM Jay via RE-wrenches <
> re-wrenches at lists.re-wrenches.org> wrote:
>
>> Hi all.
>>
>> I have someone with a SOL ark 12 (9kw max offgrid) who hooked up a EV
>> charger and it’s now tripping ac dual arc/gfi breakers.
>> I figure the charger or car or both are making noise and the breakers
>> trip.
>> The charger is set to 16 amps.
>>
>> I guess my question is since this doesn’t happen on grid, or at least I
>> never hear about it, is this an issue anyone has seen in other offgrid
>> install?
>>
>> Thx
>>
>> Jay
>>
>>
>>
>>
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