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--></style></head><body bgcolor="white" lang="EN-US" link="blue" vlink="purple"><div class="WordSection1"><p class="MsoNormal"><span style="color:#1f497d">Jeremy, </span></p><p class="MsoNormal"><span style="color:#1f497d"> </span></p>
<p class="MsoNormal"><span style="color:#1f497d">Good point. Even under the 2008 NEC 690.64(B)(2) you can install up to a 40 Amp breaker on the load side as long as it is on the opposite side of the input feed per 690.64(B)(7). Garrison, do you need a 60 A breaker?</span></p>
<p class="MsoNormal"><span style="color:#1f497d"> </span></p><p class="MsoNormal"><span style="color:#1f497d">I haven't used this product myself, but if the continuous output power is indeed 4500 W then you'd be fine with a 25 or 30 A breaker.</span></p>
<p class="MsoNormal"><span style="color:#1f497d"> </span></p><p class="MsoNormal"><span style="color:#1f497d">Best,</span></p><p class="MsoNormal"><span style="color:#1f497d"> </span></p><p class="MsoNormal"><span style="color:#1f497d">August</span></p>
<p class="MsoNormal"><span style="color:#1f497d"> </span></p><div><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"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> <a href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a> [mailto:<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a>] <b>On Behalf Of </b>All Solar, Inc.<br>
<b>Sent:</b> Wednesday, February 27, 2013 1:50 PM<br><b>To:</b> RE-wrenches<br><b>Subject:</b> Re: [RE-wrenches] Conductor Sizing for Supply Side Connection</span></p></div></div><p class="MsoNormal"> </p><div><p class="MsoNormal">
<span style="font-size:10.0pt;font-family:"Arial","sans-serif"">There is an exception in NEC2011 regarding the point of connection. This may not apply, but you could avoid the supply side. 4500W / 240V = 18.75 x 1.25 = 23.4A, well under the 120% rule. reference 705.12(D)(2)</span><span style="font-size:12.0pt;font-family:"Times New Roman","serif""></span></p>
</div><div><p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif""> </span></p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Jeremy</span><span style="font-size:12.0pt;font-family:"Times New Roman","serif""></span></p>
</div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">All Solar</span><span style="font-size:12.0pt;font-family:"Times New Roman","serif""></span></p>
</div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">CO,USA</span><span style="font-size:12.0pt;font-family:"Times New Roman","serif""></span></p>
</div><blockquote style="border:none;border-left:solid black 1.5pt;padding:0in 0in 0in 4.0pt;margin-left:3.75pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt"><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">----- Original Message ----- </span></p>
</div><div><p class="MsoNormal" style="background:#e4e4e4"><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Arial","sans-serif""> <a href="mailto:garrison@solarserviceinc.com" title="garrison@solarserviceinc.com">Garrison Riegel</a> </span></p>
</div><div><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">To:</span></b><span style="font-size:10.0pt;font-family:"Arial","sans-serif""> <a href="mailto:re-wrenches@lists.re-wrenches.org" title="re-wrenches@lists.re-wrenches.org">'RE-wrenches'</a> </span></p>
</div><div><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Sent:</span></b><span style="font-size:10.0pt;font-family:"Arial","sans-serif""> Wednesday, February 27, 2013 2:15 PM</span></p>
</div><div><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Subject:</span></b><span style="font-size:10.0pt;font-family:"Arial","sans-serif""> [RE-wrenches] Conductor Sizing for Supply Side Connection</span></p>
</div><div><p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif""> </span></p></div><p class="MsoNormal">Wrenches,</p><p class="MsoNormal"> </p><p class="MsoNormal">On an upcoming job we have a Xantrex XW4548 interconnecting with a 200A service, and I’d very much appreciate some advice if y’all are willing. </p>
<p class="MsoNormal"> </p><p class="MsoNormal">Since the inverter output OCPD is required to be 60A we are looking at a supply side connection, and I have two questions:</p><p class="MsoNormal"> </p><p class="MsoListParagraph" style>
1.<span style="font-size:7.0pt;font-family:"Times New Roman","serif""> </span>Before the point of interconnection the inverter output circuit will first pass through the XW Power Distribution Panel and inverter bypass, which is essentially a 60A breaker. The service disconnect for the supply side connection will also be fused at 60A. Does the 120% rule apply to the conductor between these two OCPDs? Or since this is a supply side connection in accordance with 690.64(A), 690.64(B)(2) will not apply? [this AHJ is on the 2008 NEC]</p>
<p class="MsoListParagraph"> </p><p class="MsoListParagraph" style>2.<span style="font-size:7.0pt;font-family:"Times New Roman","serif""> </span>Can anyone recommend a reliable insulation piercing tap connector? Or would you recommend something else entirely for a residential supply side connection?</p>
<p class="MsoNormal"> </p><p class="MsoNormal">Thanks in advance,</p><p class="MsoNormal"> </p><p class="MsoNormal">Garrison</p><p class="MsoNormal">847-677-0950</p><p class="MsoNormal">Solar Service Inc.</p><p class="MsoNormal">
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