[RE-wrenches] Little Rosie vs Arc Fault Breaker?

[david quattro]

I’ve seen 2 devices that both have arc fault circuitry essentially clash
and cause faults.  I polished and tightened all ground wires  - everything
from the electrode to the small ground wires. That solved it. Whatever it
is, I hope it’s an easy fix for you!   David



On Fri, Nov 21, 2025 at 4:28 PM Kent via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> It is the inverter that trips off not the breaker and nothing needs to be
> done to restore power except to reset the inverter. It isn't unusual for an
> inverter to trip off due to overload faster than a breaker responds. But I
> wouldn't expect the inverter to trip off due to an arc fault.
>
> The electrician has been out there twice looking for a problem with the
> wiring and found nothing.
>
> Kent Osterberg
> Blue Mountain Solar
>
>
> On 11/21/2025 3:35 PM, Tom McCalmont wrote:
>
> Maybe it’s a real arc-fault in the system somewhere, and the breaker is
> trying to tell you that.
>
>
> *Tom McCalmont *CEO, Paired Power
> pairedpower.com | LinkedIn
> <https://www.linkedin.com/company/paired-power/>
> Direct: (669) 877-2931
>
>
>
> On Nov 21, 2025, at 3:32 PM, Kent via RE-wrenches
> <re-wrenches at lists.re-wrenches.org> <re-wrenches at lists.re-wrenches.org>
> wrote:
>
> Fellow Wrenches,
>
> I have a system that we installed a few weeks ago that is driving us crazy
> with overload faults. It is a remote cabin with maybe a half dozen circuits
> being fed by a Little Rosie inverter. Every couple weeks the power system
> shuts down with the Little Rosie showing an overload for no apparent
> reason. Client resets the inverter and everything runs fine for a couple
> weeks or so. The system seems to have no trouble when the Arc Fault (a
> Siemens arc fault breaker in a 100-A Siemens panel) breaker is turned off.
> Any of you have similar issues with these breakers? It is weird that the
> breaker could actually be causing the inverter to trip off.
>
> Kent Osterberg
> Blue Mountain Solar
>
>
> _______________________________________________
>
>
>
> _______________________________________________
> List sponsored by Redwood Alliance
>
> Pay optional member dues here: http://re-wrenches.org
>
> List Address: RE-wrenches at lists.re-wrenches.org
>
> Change listserver email address & settings:
> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>
> There are two list archives for searching. When one doesn't work, try the
> other:
> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
>
> List rules & etiquette:
> http://www.re-wrenches.org/etiquette.htm
>
> Check out or update participant bios:
> http://www.members.re-wrenches.org
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20251121/68af4c76/attachment.htm>