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<p>I know, but I think Outback possibly had a bad batch about 20
years ago. They were tripping just a year after installation....</p>
<p>Ray</p>
<div class="moz-cite-prefix">On 5/1/2026 3:20 PM, jay wrote:<br>
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They are both made by CBI of south africa
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<div>I’m wondering if age is the main issue?</div>
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<div>On May 1, 2026, at 3:08 PM, Ray Walters via RE-wrenches
<a class="moz-txt-link-rfc2396E" href="mailto:re-wrenches@lists.re-wrenches.org"><re-wrenches@lists.re-wrenches.org></a> wrote:</div>
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<p>I've also seen some Outback 15A breakers in combiner
boxes just trip when they shouldn't. Replaced with
Midnite and quit having problems. As others
mentioned, going to larger breakers is usually fine.
I usually match the fuse rating for the module
itself. Many are 20A, which gets away from any edge
of cloud stuff too. </p>
<p>Ray Walters<br>
Remote Solar</p>
<div class="moz-cite-prefix">On 5/1/2026 1:55 PM, David
Coale via RE-wrenches wrote:<br>
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<div>It could be that the breakers are tripping due
to the cloud-edge effect. This happens when you
have a sunny day with a few puffy clouds <span
class="ng"
style="border-style:none;background:none">drifting</span>
by. As the clouds start to shade the array, there
is a focusing effect around the cloud that will
increase the sunlight on the array. If the
breakers are close to the max output of the array,
then they can trip during these sunny/cloudy
days. Increasing the breakers to the next size
up, if the wiring will handle it, will fix the
problem. I have seen this in a few
installations. Changing the breakers from 10 amps
to 15 amps fixed the problem.<br>
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<div>David</div>
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<div dir="ltr" class="gmail_attr">On Thu, Apr 30,
2026 at 9:31 PM All Solar via RE-wrenches <<a
href="mailto:re-wrenches@lists.re-wrenches.org"
moz-do-not-send="true"
class="moz-txt-link-freetext">re-wrenches@lists.re-wrenches.org</a>>
wrote:<br>
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<div dir="auto">Wrenches,<br>
<div dir="auto">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%</div>
<div dir="auto">of the breakers are tripping for
no apparent reason. He resets, and all is fine
for a few months. </div>
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<div dir="auto">I suspect something is wrong
with the array vs. the breakers needing
replaced.<br>
<br>
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<div dir="auto">What should I be looking for and
checking? </div>
<div dir="auto"><br>
The client has made sure the breaker screws
are tight. </div>
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<ul>
<li>Off grid</li>
<li>Pole mounted array</li>
<li>Solarex 110 w Modules</li>
</ul>
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<div dir="auto">Regards,</div>
<div dir="auto"><br>
Jeremy Rodriguez</div>
<div dir="auto">All Solar </div>
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