<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">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;" class=""><div style="-webkit-user-select: all; -webkit-user-drag: element; display: inline-block;" class="apple-rich-link" draggable="true" role="link" data-url="https://pv-magazine-usa.com/2017/03/29/solarworld-recalls-amphenol-connectors-sold-with-pv-modules/"><a style="border-radius:10px;font-family:-apple-system, Helvetica, Arial, sans-serif;display:block;-webkit-user-select:none;width:300px;user-select:none;-webkit-user-modify:read-only;user-modify:read-only;overflow:hidden;text-decoration:none;" class="lp-rich-link" rel="nofollow" href="https://pv-magazine-usa.com/2017/03/29/solarworld-recalls-amphenol-connectors-sold-with-pv-modules/" dir="ltr" role="button" draggable="false" width="300"><table style="table-layout:fixed;border-collapse:collapse;width:300px;background-color:#E9E9EB;font-family:-apple-system, Helvetica, Arial, sans-serif;" class="lp-rich-link-emailBaseTable" cellpadding="0" cellspacing="0" border="0" width="300"><tbody><tr><td vertical-align="center" align="center"><img style="width:300px;filter:brightness(0.97);height:161px;" width="300" height="161" draggable="false" class="lp-rich-link-mediaImage"></td></tr><tr><td vertical-align="center"><table bgcolor="#E9E9EB" cellpadding="0" cellspacing="0" width="300" style="font-family:-apple-system, Helvetica, Arial, sans-serif;table-layout:fixed;background-color:rgba(233, 233, 235, 1);" class="lp-rich-link-captionBar"><tbody><tr><td style="padding:8px 0px 8px 0px;" class="lp-rich-link-captionBar-textStackItem"><div style="max-width:100%;margin:0px 16px 0px 16px;overflow:hidden;" class="lp-rich-link-captionBar-textStack"><div style="word-wrap:break-word;font-weight:500;font-size:12px;overflow:hidden;text-overflow:ellipsis;text-align:left;" class="lp-rich-link-captionBar-textStack-topCaption-leading"><a rel="nofollow" href="https://pv-magazine-usa.com/2017/03/29/solarworld-recalls-amphenol-connectors-sold-with-pv-modules/" style="text-decoration: none" draggable="false"><font color="#000000" style="color: rgba(0, 0, 0, 1);">BREAKING: SolarWorld recalls PV modules with Amphenol connectors</font></a></div><div style="word-wrap:break-word;font-weight:400;font-size:11px;overflow:hidden;text-overflow:ellipsis;text-align:left;" class="lp-rich-link-captionBar-textStack-bottomCaption-leading"><a rel="nofollow" href="https://pv-magazine-usa.com/2017/03/29/solarworld-recalls-amphenol-connectors-sold-with-pv-modules/" style="text-decoration: none" draggable="false"><font color="#A2A2A9" style="color: rgba(60, 60, 67, 0.6);">pv-magazine-usa.com</font></a></div></div></td></tr></tbody></table></td></tr></tbody></table></a></div></div><br><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 <re-wrenches@lists.re-wrenches.org> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr">
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<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 class="moz-cite-prefix">On 11/9/2023 3:02 PM, Glenn Burt via
RE-wrenches wrote:<br>
</div>
<blockquote type="cite" cite="mid:069b01da1358$73aa2070$5afe6150$@glbcc.com">
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<div class="WordSection1">
<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…<o:p></o:p></p>
<p class="MsoNormal">It may be an out to shift the blame, but it
only makes everybody get some on them…<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b>From:</b> RE-wrenches
<a class="moz-txt-link-rfc2396E" href="mailto:re-wrenches-bounces@lists.re-wrenches.org"><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 class="moz-txt-link-rfc2396E" href="mailto:re-wrenches@lists.re-wrenches.org"><re-wrenches@lists.re-wrenches.org></a><br>
<b>Cc:</b> William Miller <a class="moz-txt-link-rfc2396E" href="mailto:william@millersolar.com"><william@millersolar.com></a><br>
<b>Subject:</b> Re: [RE-wrenches] Cable sizing for high
current modules? NEC interpretation/guidance?<o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana",sans-serif;color:#1F497D">George:</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana",sans-serif;color:#1F497D">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><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana",sans-serif;color:#1F497D">William
Miller</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
<div>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1F497D">Miller
Solar</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1F497D">17395
Oak Road, Atascadero, CA 93422</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1F497D">805-438-5600</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1F497D"><a href="http://www.millersolar.com/" moz-do-not-send="true">www.millersolar.com</a></span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1F497D">CA
Lic. 773985</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F497D"> </span><o:p></o:p></p>
</div>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana",sans-serif;color:#1F497D"> </span><o:p></o:p></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">
RE-wrenches [mailto:<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org" moz-do-not-send="true" class="moz-txt-link-freetext">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><o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Team;<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></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.<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Thx,<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<div>
<p class="MsoNormal">George McClellan | Senior Technical Sales
Manager | REC Americas LLC <o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:4.0pt;mso-line-height-alt:8.0pt">330
James Way Ste 150<span lang="UK"> | </span>Pismo Beach, CA
93449<span lang="UK"> | </span>USA<o:p></o:p></p>
<p class="MsoNormal">Cell phone +1 805 704 3226 | Fax +1 805
357 6104 <o:p></o:p></p>
<p class="MsoNormal"><span style="color:navy"><a href="http://www.recgroup.com/" title="http://www.recgroup.com/" moz-do-not-send="true">www.recgroup.com</a>
</span><span style="color:black">| <a href="mailto:shannon.kent@recgroup.com" moz-do-not-send="true">george.mcclellan@recgroup.com</a></span><o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
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