<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div dir="ltr"></div><div dir="ltr">I got curious </div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr">As I understand it there are 2 variations. </div><div dir="ltr">1 is with the inverter within 1-3\u2019 of the array and that includes having listed by IR panels and inverters. Which is usually commercial jobs. </div><div dir="ltr"><br></div><div dir="ltr">2 is the inverter is further than 1-3\u2019 from the array. It\u2019s almost the same with only certain listed panels and inverters and remote shut down equipment </div><div dir="ltr"><br></div><div dir="ltr">Here is the link that talks about the second version. </div><div dir="ltr"><br></div><div dir="ltr"><a href="https://files.ironridge.com/pitched-roof-mounting/resources/brochures/IronRidge_XR_Flush_Mount_UL3741_Installation_Addendum.pdf">https://files.ironridge.com/pitched-roof-mounting/resources/brochures/IronRidge_XR_Flush_Mount_UL3741_Installation_Addendum.pdf</a></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br><blockquote type="cite">On Oct 14, 2025, at 1:06\u202fPM, david quattro via RE-wrenches <re-wrenches@lists.re-wrenches.org> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr">\ufeff<div dir="ltr">I think for 3741 without RSD devices, the inverter would have to be mounted within 1 ft of the array.</div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Tue, Oct 14, 2025 at 11:01\u202fAM Michael Morningstar 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"><div dir="ltr"><div><br clear="all"></div><div>Wrenches,</div><div><br></div><div>I do not do a lot of rooftop array work and am having trouble understanding something related to 690.12 and UL 3741. I have a potential client who is building a new permitted home and has plans approved for a rooftop array and Sol-Ark/Discover AES battery back up. He has asked me to quote the install and after looking at his plans, I noticed an absence of MLPE's. I brought this to his attention and he sent me XR FLUSH MOUNT UL 3741 PV HAZARD CONTROL INSTALLATION ADDENDUM. His interpretation is that Ironridge's racking system negates the need for MLPE's, or that the racking is an alternative to using MLPE's. I'm just not seeing it. Am I missing something or?</div><div><br></div><div>Thanks,</div><div>Michael</div><div><br></div><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature"><div dir="ltr">
<p style="margin:0px;font:18px Helvetica;min-height:22px"><span></span></p>
<p style="margin:0px;font:18px Helvetica">Michael Morningstar </p><p style="margin:0px;font:18px Helvetica"><br></p><p style="margin:0px;font:18px Helvetica">Morningstar Electric Inc</p><p style="margin:0px;font:18px Helvetica">PO Box 1494</p><p style="margin:0px;font:18px Helvetica">Mount Shasta, CA 96067</p><p style="margin:0px;font:18px Helvetica">530-921-0560</p><p style="margin:0px;font:18px Helvetica">CSLB 1116835</p><p style="margin:0px;font:18px Helvetica"><a href="mailto:mjmorningstar@gmail.com" target="_blank">mjmorningstar@gmail.com</a></p><p style="margin:0px;font:18px Helvetica"><br></p></div></div></div>
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