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Allan,<br>
<br>
I've had trouble with breakers opening when they shouldn't. On an
array of two strings of Mitsubishi 175s (Isc = 7.9A) I had two 15-A
breakers open. Last week, I had a low-power call from a customer with
three strings of Evergreen 190s (Isc = 7.1A); one 15-A breaker in the
combiner was open. Most of my installs are around 3000 ft elevation,
so the irradiance is possibly a little higher than normal, but not by
enough that it should be an issue for 15-amp breakers. If this is a
wide-spread problem, I'd expect others on this list to have noticed.<br>
<br>
As others have mentioned, it is important to take precautions to make
sure that stranded wires are well tightened in these breakers. I
tighten, wiggle, re-tighten, and then check again later. On systems
where I've had breakers open, loose connections haven't been the issue.<br>
<br>
Kent Osterberg<br>
Blue Mountain Solar, Inc.<br>
<a href="http://www.bluemoutainsolar.com/">www.bluemoutainsolar.com</a><br>
<br>
<br>
Allan Sindelar wrote:
<blockquote cite="mid:000f01ca0e7c$35346440$6401a8c0@pelapallan"
type="cite">
<pre wrap="">I have had no problems to date, Kent. Can you be more specific as to what
problems you have had?
Allan Sindelar
<a class="moz-txt-link-abbreviated" href="mailto:Allan@positiveenergysolar.com">Allan@positiveenergysolar.com</a>
NABCEP Certified Photovoltaic Installer
EE98J Journeyman Electrician
Positive Energy, Inc.
3201 Calle Marie
Santa Fe, New Mexico 87507
505 424-1112
<a class="moz-txt-link-abbreviated" href="http://www.positiveenergysolar.com">www.positiveenergysolar.com</a>
-----Original Message-----
Is it just me, or have other wrenches had problems with the CBI circuit
breakers used in the Outback or Midnite combiner boxes?
Kent Osterberg
Blue Mountain Solar, Inc.
<a class="moz-txt-link-freetext" href="http://www.bluemountainsolar.com/">http://www.bluemountainsolar.com/</a>
</pre>
</blockquote>
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