
<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div dir="ltr"></div><div dir="ltr">FYI</div><div dir="ltr">The 12 and 15kw both have dual lugs on positive and negative battery inputs. </div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br><blockquote type="cite">On Jun 29, 2023, at 6:47 AM, Jason Szumlanski via RE-wrenches <re-wrenches@lists.re-wrenches.org> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr"><div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"></div><div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">I was thinking the Midnite combiner, but it's a very big product for what we're trying to accomplish. I was hoping Polaris type tap connectors might be able to do it. I think this application is going to require a somewhere around 800A calculated minimum circuit ampacity. I'm not quite certain how to calculate the required ampacity properly for this bus. Either way, I would need to find a connector that accepts fine stranded cable. Such an animal might not exist in the required ampacity. The Ilsco PBTS line accepts find stranded cable, and if you stagger inputs and outputs it is my understanding that the ampacity allowance is additive. The 600 MCM 4-port connectors might have the required ampacity. Maybe I'm dreaming and a Polaris-type connector isn't an easy way out.</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Alternatively, I was thinking of a Blue Sea 1000A busbar mounted in a trough or junction box. </div><div><div dir="ltr" class="gmail_signature"><div dir="ltr"><br>Jason Szumlanski<div><span style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">Principal Solar Designer | Florida Solar Design Group</span><br style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px"><span style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">NABCEP Certified Solar Professional (PVIP)</span><br style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px"><span style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">Florida State Certified Solar Contractor CVC56956</span></div></div></div></div><br></div><br><img width="0" height="0" class="mailtrack-img" alt="" style="display:flex" src="https://mailtrack.io/trace/mail/73254df44567038316a3a41552437ec4f6a52ead.png?u=1613865" data-unique-identifier=""><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Jun 29, 2023 at 7:58 AM <<a href="mailto:rich@solartechvt.com" target="_blank">rich@solartechvt.com</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><div lang="EN-US"><div><p class="MsoNormal"><span style="font-size:11pt;font-family:Calibri,"sans-serif";color:rgb(31,73,125)">Hi Jason<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11pt;font-family:Calibri,"sans-serif";color:rgb(31,73,125)">We’re using the Midnite MNCB battery combiner for the same purpose.<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11pt;font-family:Calibri,"sans-serif";color:rgb(31,73,125)"><a href="https://www.midnitesolar.com/productPhoto.php?product_ID=439&productCatName=BATTERY" target="_blank">https://www.midnitesolar.com/productPhoto.php?product_ID=439&productCatName=BATTERY</a><u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11pt;font-family:Calibri,"sans-serif";color:rgb(31,73,125)">I’m curious what others may suggest for options.<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11pt;font-family:Calibri,"sans-serif";color:rgb(31,73,125)">Thanks<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11pt;font-family:Calibri,"sans-serif";color:rgb(31,73,125)">Rich<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11pt;font-family:Calibri,"sans-serif";color:rgb(31,73,125)"><u></u> <u></u></span></p><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>Jason Szumlanski via RE-wrenches<br><b>Sent:</b> Thursday, June 29, 2023 7:55 AM<br><b>To:</b> RE-wrenches<br><b>Cc:</b> Jason Szumlanski<br><b>Subject:</b> [RE-wrenches] Parallel Homegrid Stack'd Busbar<u></u><u></u></span></p><p class="MsoNormal"><u></u> <u></u></p><div><div><p class="MsoNormal"><span style="font-family:Arial,"sans-serif"">Hi all,<u></u><u></u></span></p></div><div><p class="MsoNormal"><span style="font-family:Arial,"sans-serif""><u></u> <u></u></span></p></div><div><p class="MsoNormal"><span style="font-family:Arial,"sans-serif"">I'm doing my first installation with two 24 kWh Homegrid stacks. They will feed two Sol-Ark 15k. I'm seeking recommendations on busbars for connecting this up in the most elegant way possible.<u></u><u></u></span></p></div><div><p class="MsoNormal"><span style="font-family:Arial,"sans-serif""><u></u> <u></u></span></p></div><div><p class="MsoNormal"><span style="font-family:Arial,"sans-serif"">Pictures speak 1,000 words, so if you have any I would appreciate it (off-list is fine).<u></u><u></u></span></p></div><div><p class="MsoNormal"><span style="font-family:Arial,"sans-serif""><u></u> <u></u></span></p></div><div><p class="MsoNormal"><span style="font-family:Arial,"sans-serif"">Jason Szumlanski<u></u><u></u></span></p></div><div><p class="MsoNormal"><span style="font-family:Arial,"sans-serif"">Florida Solar Design Group<u></u><u></u></span></p></div><div><p class="MsoNormal"><span style="font-family:Arial,"sans-serif""><u></u> <u></u></span></p></div><div><div><div><div><div><div><div><div><p class="MsoNormal" align="center" style="text-align:center"><b><u></u> <u></u></b></p></div></div></div></div></div></div></div></div></div></div></div></div></blockquote></div>

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