<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">Looks like the same. I’ve known several folks that have had this issue. <div><br></div><div><img alt="image0.jpeg" src="cid:1853EF83-2F17-4270-98F8-A8E23A610063-L0-001"><br><br><div dir="ltr">Brian</div><div dir="ltr"><br><blockquote type="cite">On Nov 9, 2023, at 5:49 PM, Dave Tedeyan <dave@sungineersolar.com> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr"><div dir="ltr">Ours was not the UTX, but also not MC4. I am actually not sure which ones they were, but here are a few photos. The connectors were so bloated that I needed to cut off the tabs in order to separate them and see what it looked like inside. Some were so melted together that it was impossible to separate.<div><br></div><div>-Dave</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Nov 9, 2023 at 7:32 PM Ray Walters via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><u></u>
<div>
<p>I'm trying to find a pic to post, but they were MC4 connectors,
not the UTX.</p>
<p>Ray<br>
</p>
<div>On 11/9/2023 4:57 PM, Brian Mehalic
wrote:<br>
</div>
<blockquote type="cite">
Are they the Amohenol UTX connectors? SW had a recall on them,
sounds like about the right timeframe.
<div><br>
</div>
<div>
<div style="display:block">
<div style="display:inline-block" role="link"><a style="border-radius:10px;font-family:-apple-system,Helvetica,Arial,sans-serif;display:block;width:300px;overflow:hidden;text-decoration:none" rel="nofollow" href="https://pv-magazine-usa.com/2017/03/29/solarworld-recalls-amphenol-connectors-sold-with-pv-modules/" dir="ltr" role="button" width="300" target="_blank">
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<div style="font-weight:500;font-size:12px;overflow:hidden;text-overflow:ellipsis;text-align:left"><a rel="nofollow" href="https://pv-magazine-usa.com/2017/03/29/solarworld-recalls-amphenol-connectors-sold-with-pv-modules/" style="text-decoration:none" target="_blank"><font style="color:rgb(0,0,0)" color="#000000">BREAKING:
SolarWorld recalls PV modules with
Amphenol connectors</font></a></div>
<div style="font-weight:400;font-size:11px;overflow:hidden;text-overflow:ellipsis;text-align:left"><a rel="nofollow" href="https://pv-magazine-usa.com/2017/03/29/solarworld-recalls-amphenol-connectors-sold-with-pv-modules/" style="text-decoration:none" target="_blank"><font style="color:rgba(60,60,67,0.6)" color="#A2A2A9">pv-magazine-usa.com</font></a></div>
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<br>
<div dir="ltr">Brian</div>
<div dir="ltr"><br>
<blockquote type="cite">On Nov 9, 2023, at 4:47 PM, Ray
Walters via RE-wrenches
<a href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank"><re-wrenches@lists.re-wrenches.org></a> wrote:<br>
<br>
</blockquote>
</div>
<blockquote type="cite">
<div dir="ltr">
<p>12 Ga wire is not going to catch on fire, but the MC
connectors might. I just went back on a 7 yr old
Solarworld install, and had a bad series MC connector
(module to module). It got quite crispy, deforming and
bubbling the plastic on both sides of the connection. It
was still passing current; I didn't get a chance to
measure the volt drop. It was completely plugged in, so
not an installation issue. </p>
<p>This was not one of our connectors made up in the field,
these were Solarworld factory connectors on both sides,
same model modules. That also means no mismatch of "MC4"
connector type. </p>
<p>10+ amps continuous, moist environment, 30F+ hotter than
ambient temp, all are tough on connectors. I predict more
connector failures as module current ratings increase.</p>
<p>Ray Walters<br>
Remote Solar<br>
</p>
<div>On 11/9/2023 3:02 PM, Glenn
Burt via RE-wrenches wrote:<br>
</div>
<blockquote type="cite">
<div>
<p class="MsoNormal">Good luck trying to convince your
customer that their house caught on fire because of a
manufacturers flaw, and you have no responsibility for
it…<u></u><u></u></p>
<p class="MsoNormal">It may be an out to shift the
blame, but it only makes everybody get some on them…<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<div>
<div style="border-right:none;border-bottom:none;border-left:none;border-top:1pt solid rgb(225,225,225);padding:3pt 0in 0in">
<p class="MsoNormal"><b>From:</b> RE-wrenches <a href="mailto:re-wrenches-bounces@lists.re-wrenches.org" target="_blank"><re-wrenches-bounces@lists.re-wrenches.org></a>
<b>On Behalf Of </b>William Miller via
RE-wrenches<br>
<b>Sent:</b> Wednesday, November 08, 2023 12:14 PM<br>
<b>To:</b> RE-wrenches <a href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank"><re-wrenches@lists.re-wrenches.org></a><br>
<b>Cc:</b> William Miller <a href="mailto:william@millersolar.com" target="_blank"><william@millersolar.com></a><br>
<b>Subject:</b> Re: [RE-wrenches] Cable sizing for
high current modules? NEC interpretation/guidance?<u></u><u></u></p>
</div>
</div>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"><span style="font-size:12pt;font-family:Verdana,sans-serif;color:rgb(31,73,125)">George:</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:12pt;font-family:Verdana,sans-serif;color:rgb(31,73,125)"> </span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:12pt;font-family:Verdana,sans-serif;color:rgb(31,73,125)">Appliance
manufacturers have their own requirements that are
not the same as the NEC requirements. As long as
you are not modifying the manufactured assembly you
are not responsible for compliance of that
appliance. By appliance, I mean the solar module,
microinverter, etc.</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:12pt;font-family:Verdana,sans-serif;color:rgb(31,73,125)"> </span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:12pt;font-family:Verdana,sans-serif;color:rgb(31,73,125)">William
Miller</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:12pt;font-family:Verdana,sans-serif;color:rgb(31,73,125)"> </span><u></u><u></u></p>
<div>
<p class="MsoNormal"><span style="font-size:12pt;font-family:Arial,sans-serif;color:rgb(31,73,125)">Miller
Solar</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:12pt;font-family:Arial,sans-serif;color:rgb(31,73,125)">17395
Oak Road, Atascadero, CA 93422</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:12pt;font-family:Arial,sans-serif;color:rgb(31,73,125)">805-438-5600</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:12pt;font-family:Arial,sans-serif;color:rgb(31,73,125)"><a href="http://www.millersolar.com/" target="_blank">www.millersolar.com</a></span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:12pt;font-family:Arial,sans-serif;color:rgb(31,73,125)">CA
Lic. 773985</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:rgb(31,73,125)"> </span><u></u><u></u></p>
</div>
<p class="MsoNormal"><span style="font-size:12pt;font-family:Verdana,sans-serif;color:rgb(31,73,125)"> </span><u></u><u></u></p>
<div>
<div style="border-right:none;border-bottom:none;border-left:none;border-top:1pt solid rgb(181,196,223);padding:3pt 0in 0in">
<p class="MsoNormal"><b><span style="font-size:10pt;font-family:Tahoma,sans-serif">From:</span></b><span style="font-size:10pt;font-family:Tahoma,sans-serif">
RE-wrenches [mailto:<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org" target="_blank">re-wrenches-bounces@lists.re-wrenches.org</a>]
<b>On Behalf Of </b>George McClellan via
RE-wrenches<br>
<b>Sent:</b> Wednesday, November 8, 2023 9:06 AM<br>
<b>To:</b> RE-wrenches<br>
<b>Cc:</b> George McClellan<br>
<b>Subject:</b> [RE-wrenches] Cable sizing for
high current modules? NEC
interpretation/guidance?</span><u></u><u></u></p>
</div>
</div>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">Team;<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">With the move to larger cells, some
modules have an Isc that is pushing the limits of 12
AWG wire. If I apply the rule of 156% (or 125% solar
derate*125% continuous load derate) to an 18 Amp Isc
module this will exceed the 25A that a 12 AWG wire can
carry. I understand that the homeruns will need to be
a larger AWG (10 ga), but do the solar module cables
(from junction box to MC4) also need to be larger?
Any guidance or reference material would be greatly
appreciated.<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">Thx,<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<div>
<p class="MsoNormal">George McClellan | Senior
Technical Sales Manager | REC Americas LLC <u></u><u></u></p>
<p class="MsoNormal" style="margin-bottom:4pt">330 James Way Ste
150<span lang="UK"> | </span>Pismo Beach, CA 93449<span lang="UK"> | </span>USA<u></u><u></u></p>
<p class="MsoNormal">Cell phone +1 805 704 3226 | Fax
+1 805 357 6104 <u></u><u></u></p>
<p class="MsoNormal"><span style="color:navy"><a href="http://www.recgroup.com/" title="http://www.recgroup.com/" target="_blank">www.recgroup.com</a> </span><span style="color:black">| <a href="mailto:shannon.kent@recgroup.com" target="_blank">george.mcclellan@recgroup.com</a></span><u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
</div>
<p class="MsoNormal"><span style="font-size:12pt;font-family:"Times New Roman",serif"> </span><u></u><u></u></p>
<div class="MsoNormal" style="text-align:center" align="center"><span style="font-size:12pt;font-family:"Times New Roman",serif">
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</blockquote></div><br clear="all"><div><br></div><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr"></div></div></div></div><div dir="ltr"><table cellpadding="0" cellspacing="0" style="border-spacing:0px;border-collapse:collapse;color:rgb(68,68,68);width:525px;font-size:11pt;font-family:Arial,sans-serif"><tbody><tr><td width="125" valign="top" rowspan="6" style="font-family:Arial,sans-serif;padding:0px 10px 0px 0px;font-size:10pt;border-right:1px solid rgb(236,189,0);width:125px;vertical-align:top"><a href="https://www.sungineersolar.com/" style="color:rgb(51,122,183);background-color:transparent" target="_blank"><img border="0" alt="Logo" width="105" src="https://sungineersolar.com/wp-content/uploads/2019/08/Logo-Image-Only-1.png" style="border: 0px; vertical-align: middle; width: 105px; height: auto;" data-unique-identifier=""></a></td><td style="padding:0px 0px 0px 10px"><table cellpadding="0" cellspacing="0" style="border-spacing:0px;border-collapse:collapse;background-color:transparent"><tbody><tr><td valign="top" style="font-family:Arial,sans-serif;padding:0px 0px 5px 10px;width:400px;vertical-align:top"><span style="color:rgb(236,189,0);font-size:11pt;font-weight:700">Dave Tedeyan, P.E.<br></span><span style="font-size:11pt;font-weight:700"><font color="#ecbd00">Owner | Sungineer Solar</font><br></span></td></tr><tr><td valign="top" style="font-family:Arial,sans-serif;padding:5px 0px 5px 10px;font-size:10pt;vertical-align:top;line-height:17px"><span style="color:rgb(236,189,0)"><span style="font-weight:700">p: </span></span><span style="font-size:13.3333px"><span style="font-size:10pt;color:rgb(0,0,0)">he | him | his</span></span><span style="color:rgb(236,189,0)"><span style="font-weight:700"><br>a: </span></span><span style="font-size:10pt;color:rgb(0,0,0)">1653 Slaterville Rd.</span> <span style="font-size:10pt;color:rgb(0,0,0)">| Ithaca, NY 14850</span><br><span style="color:rgb(236,189,0)"><span style="font-weight:700">w:</span></span><a href="http://www.sungineersolar.com/" rel="noopener" style="color:rgb(51,122,183);background-color:transparent" target="_blank"><span style="font-size:10pt;color:rgb(0,0,0)"> www.sungineersolar.com</span></a><br><span style="color:rgb(236,189,0)"><span style="font-weight:700">c:</span></span><span style="font-size:10pt;color:rgb(0,0,0)"> (607) 270-0370</span></td></tr></tbody></table></td></tr></tbody></table></div></div></div></div>
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