<div dir="auto"> This is an excellent explanation of many aspects of 3741. <div><a href="https://youtu.be/mgD0O9WfKVU?si=-SRdLuTd4XGDToKp">https://youtu.be/mgD0O9WfKVU?si=-SRdLuTd4XGDToKp</a></div></div><div dir="auto"> At the NABCEP conference in Raleigh earlier this year, there were popular presentations about 3741.</div><div dir="auto"> I think it can be a great solution for some small commercial, but not for residential. </div><div dir="auto"><br></div><div dir="auto"><br></div><div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Oct 8, 2024 at 12:41\u202fPM Dave Tedeyan 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-width:1px;border-left-style:solid;padding-left:1ex;border-left-color:rgb(204,204,204)"><div dir="ltr">Hi Lou, <div><br></div><div>It looks like Ironridge with the Midnite's MNSSR-600S-SS and some Solis Inverters (or Tesla) are compatible. But that is all I know of off the top of my head.</div><div><a href="https://www.ironridge.com/2024/02/27/flush-mount-systems-listed-to-ul-3741/" target="_blank">https://www.ironridge.com/2024/02/27/flush-mount-systems-listed-to-ul-3741/</a><br></div><div><br></div><div>I have not actually pursued this yet, but would be curious to hear if others have and whether they like it.</div><div><br></div><div>Cheers,</div><div>Dave</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Oct 8, 2024 at 3:01\u202fPM Lou Russo via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank">re-wrenches@lists.re-wrenches.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;padding-left:1ex;border-left-color:rgb(204,204,204)"><div dir="ltr">Hello Wrenches,<div><br></div><div>We are researching UL3741 and NEC2020s Photovoltaic Hazard Control System. Whether it is safe or not is a discussion for another time.</div><div><br></div><div>After digging around a bunch it does not seem to be really geared toward us residential (grid-tied and off-grid) and small commercial installers. But I wanted to connect with folks who know the landscape better than us before we disregard it for the foreseeable future. </div><div><br></div><div>UL3741 listed racking systems and solar panels are not the limiting factor, as there are enough manufacturers listed that we use regularly and can get easily. It appears that Midnite's MNSSR-600S-SS may be a good path for us as it has been tested with the Sol-Ark15k but from what I can tell not to UL3741 standards. </div><div><br></div><div>It seems the short list of compliant inverters with a compliant racking system using Midnite's MNSSR-600S-SS is what would hold us back. As we don't actively use any of the listed inverters.</div><div><br></div><div>Has anyone heard from inverter manufacturers that are actively working with a racking company on getting UL3741 or if they EVEN want to pursue it (besides Tesla, Solis, SMA, GrowWatt)?Specifically battery based hybrid inverters or charge controllers. I can't seem to find any.</div><div><br></div><div>Thank you for your input.</div><div><br></div><div><div><div dir="ltr" class="gmail_signature"><div dir="ltr"><div dir="ltr">Aloha,<div><br></div><div>Lou Russo </div><div>Owner</div><div><a href="mailto:lou@spreesolarsystems.com" target="_blank">lou@spreesolarsystems.com</a></div><div>Office - 808 345 6762</div><div>Spree Solar Systems LLC </div><div>CT-34322</div><div><br></div></div></div></div></div></div></div>
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