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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Allan,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Square D makes 2-, 3-, and 4-pole models from 30 amps to 1200
amps that are 600Vdc rated. They have by far the most selection of any company
at the moment. The 200-Amp and up versions must pass through two poles of the
same switch. I’m using 3, 2-pole 600A units on 500 kW inverters at the
moment. It all depends on the layout of your combiner boxes. Let me know when
you are ready to do some design work. It ain’t residential.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Bill.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
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<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:windowtext'>From:</span></b><span style='font-size:10.0pt;font-family:
"Tahoma","sans-serif";color:windowtext'> re-wrenches-bounces@lists.re-wrenches.org
[mailto:re-wrenches-bounces@lists.re-wrenches.org] <b>On Behalf Of </b>Allan
Sindelar<br>
<b>Sent:</b> Monday, April 12, 2010 4:30 PM<br>
<b>To:</b> August Goers<br>
<b>Cc:</b> RE-wrenches<br>
<b>Subject:</b> Re: [RE-wrenches] 600VDC Safety Switch question<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'>August,<br>
Precisely. And it's a dumb idea, I know. But it's part of a utility-scale RFP,
and it specifically calls out switching the DC input. This is too early a stage
in the process to figure out better approaches; first we have to qualify for
the job. <br>
<br>
Surprisingly, Boltswitch makes one, and it's cheaper than SqD. So we may have
found an answer, but I'm still listening for other ideas.<br>
Thank you,<br>
Allan<o:p></o:p></p>
<div>
<p class=MsoNormal><span class=il><b>Allan</b></span><b> Sindelar</b><span
style='font-size:10.0pt'><br>
<a href="mailto:Allan@positiveenergysolar.com" target="_blank"><span class=il><u>Allan</u></span><u>@positiveenergysolar.com</u></a><br>
NABCEP Certified Photovoltaic Installer<br>
EE98J Journeyman Electrician<br>
<b>Positive Energy, Inc.</b><br>
3201 Calle Marie<br>
Santa Fe, New Mexico 87507<br>
<b>505 424-1112</b><br>
<a href="http://www.positiveenergysolar.com/" target="_blank"><u>www.positiveenergysolar.com</u></a></span><o:p></o:p></p>
</div>
<p class=MsoNormal><br>
<br>
August Goers wrote: <o:p></o:p></p>
<div>
<div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Allan
-<o:p></o:p></span></p>
</div>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>What
is the application? Are you trying to switch a large PV array before the
inverter but after the strings have been fused and combined?<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>-August<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>August
Goers<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Luminalt
Energy Corporation<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>O:
415.564.7652<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>M:
415.559.1525<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>F:
650.244.9167<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><a
href="http://www.luminalt.com/"><u>www.luminalt.com</u></a><o:p></o:p></span></p>
</div>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> <o:p></o:p></span></p>
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<p class=MsoNormal style='margin-bottom:12.0pt'><b><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'> <a
href="mailto:re-wrenches-bounces@lists.re-wrenches.org"><u>re-wrenches-bounces@lists.re-wrenches.org</u></a>
[<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org"><u>re-wrenches-bounces@lists.re-wrenches.org</u></a>]
On Behalf Of Allan Sindelar [<a href="mailto:allan@positiveenergysolar.com"><u>allan@positiveenergysolar.com</u></a>]<br>
<b>Sent:</b> Monday, April 12, 2010 12:41 PM<br>
<b>To:</b> RE-wrenches<br>
<b>Subject:</b> [RE-wrenches] 600VDC Safety Switch question<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Wrenches,<br>
We need recommendation of a 200A or larger (400A or 600A preferred) two-pole or
</span>three-pole, double-throw, 600VDC rated, <span style='font-size:11.5pt'>manually
operated</span>, load-break- and load-make-rated, service-equipment rated,
fusible or nonfusible safety switch for purposes of switching DC input. <br>
<br>
Square D 82345R and H82345 are rated only 250VDC in a fine-print note in their
catalog. <br>
<br>
I don't think that what I'm asking for exists, but wiser Wrenches may prevail.
Can anyone suggest another brand and product model that meets these
requirements?<br>
<br>
Thank you,<br>
Allan<span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p></o:p></span></p>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>--
<o:p></o:p></span></p>
<p class=MsoNormal><span class=il><b>Allan</b></span><b> Sindelar</b><span
style='font-size:10.0pt'><br>
<a href="mailto:Allan@positiveenergysolar.com"><span class=il><u>Allan</u></span><u>@positiveenergysolar.com</u></a><br>
NABCEP Certified Photovoltaic Installer<br>
EE98J Journeyman Electrician<br>
<b>Positive Energy, Inc.</b><br>
3201 Calle Marie<br>
Santa Fe, New Mexico 87507<br>
<b>505 424-1112</b><br>
<a href="http://www.positiveenergysolar.com/" target="_blank"><u>www.positiveenergysolar.com</u></a></span><o:p></o:p></p>
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