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David,<br>
<br>
Sq D doesn't have them UL listed for it but they self certify the 10 to
30 amp 2-pole breakers for 125 volts dc. Problem is: if you need a UL
listing, you are stuck at 48 volts.<br>
<br>
Kent Osterberg<br>
Blue Mountain Solar, Inc.<br>
<br>
<br>
David Katz wrote:
<blockquote cite="mid:4BD0D11D.5040307@aeesolar.com" type="cite">
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Allan,<br>
Are you running 100+ volts DC through a Square D breaker? They are not
rated for anything above 48VDC. Midnite Solar makes a manual transfer
switch that can be fitted with 150 VDC breakers. That may be a better
choice.<br>
David<br>
<br>
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<p class="MsoNormal" style=""><span
style="font-size: 10pt; font-family: Verdana;">David Katz</span><span
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<p class="MsoNormal" style=""><span
style="font-size: 10pt; font-family: Verdana;">Chief Technical Officer</span><span
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<p class="MsoNormal" style=""><span
style="font-size: 10pt; font-family: Verdana;">AEE Solar</span><span
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<p class="MsoNormal" style=""><span
style="font-size: 10pt; font-family: Verdana;">1155 <span
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CA 95560</span><span style="font-family: Arial;"><o:p></o:p></span></p>
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<br>
<br>
Kent Osterberg wrote:
<blockquote cite="mid:4BD0C53F.7090704@coveoregon.com" type="cite">
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Allan,<br>
<br>
Here the electrical inspector won't let us install the CU-200 or other
SQFlex controls because they are not UL listed. The pump is not listed
either, but he doesn't object to that. So I've installed the SQFlex
pumps using a pair of SQ D QO breakers with interlock kit so they can
be run on a generator or solar system. To turn them off, a 2-gallon
pressure tank with pressure switch (adjusted to operate at 10 psi)
works great if the PV array is near the pumping system. <br>
<br>
Kent Osterberg<br>
Blue Mountain Solar, Inc.<br>
<br>
<br>
<br>
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