[RE-wrenches] Combiner breakers tripping

[All Solar]

Jay and all,
Here are the details you requested, from the module nameplate (I have not
tested these yet):

  - Breaker Size: 9A
  - VOC: 41.2V
  - VMP: 32.9V
  - IMP: 3.34A
  - ISC: 3.69A
  - Max Series Fuse: 20A
  - Configuration: One module per string feeding a SB50 charge controller.
  - 10 or 12 guage wire from modules to combiner
   -Breakers are approximately 20yrs old


Jeremy Rodriguez
All Solar Inc.
Penrose CO
719-276-4954
Established 1998


On Fri, May 1, 2026 at 6:21 AM Jay <jay.peltz at gmail.com> wrote:

> Pls tell us
> Size breaker
> Voltage input
> Amperage input
> Wire size
> Age of breakers
>
> Thx
>
> On Apr 30, 2026, at 10:31 PM, All Solar via RE-wrenches <
> re-wrenches at lists.re-wrenches.org> wrote:
>
> 
>
> Wrenches,
> I've got a c client with an Outback PV combiner with DIN mount CBs. He's
> let me know a few times that 9 of 10 , or at least 50%
> of the breakers are tripping for no apparent reason. He resets, and all is
> fine for a few months.
>
> I suspect something is wrong with the array vs. the breakers needing
> replaced.
>
> What should I be looking for and checking?
>
> The client has made sure the breaker screws are tight.
>
>    - Off grid
>    - Pole mounted array
>    - Solarex 110 w Modules
>
>
>
>
> Regards,
>
> Jeremy Rodriguez
> All Solar
>
>
>
>
>
>
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