<div><div style="color:rgb(49,49,49);word-spacing:1px" dir="auto"><div dir="auto" style="font-size:1rem">Thanks for the suggestions, everyone. Looks like I have 3 solid options to work with. </div></div><div dir="auto" style="color:rgb(49,49,49);word-spacing:1px"><br></div><div dir="auto" style="font-size:1rem;color:rgb(49,49,49);word-spacing:1px">Chris, this specific project was designed with two points of interconnection. One 10kW inverter on the Sonnen\u2019s critical loads panel and the other 10 kW on the main distribution panel. Wanting to stick with the same manufacturer while avoiding having to use 3 separate inverters (and an additional accumulation panel for the 2 inverters upstream of the Sonnen) I figured that the DC contactor trick would probably be the easiest way out. </div><div dir="auto" style="color:rgb(49,49,49);word-spacing:1px"><br></div><div dir="auto" style="font-size:1rem;color:rgb(49,49,49);word-spacing:1px">Thanks again for the assist </div></div><div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, Nov 24, 2019 at 10:06 AM Chris Sparadeo <<a href="mailto:c2@catamountsolar.com">c2@catamountsolar.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div><div dir="auto">Thanks for the suggestions, everyone. Looks like I have 3 solid options to work with. </div></div></div><div dir="auto"><br></div><div dir="auto">Chris, this specific project was designed with two points of interconnection. One 10kW inverter on the Sonnen\u2019s critical loads panel and the other 10 kW on the main distribution panel. Wanting to stick with the same manufacturer while avoiding having to use 3 separate inverters (and an additional accumulation panel for the 2 inverters upstream of the Sonnen) I figured that the DC contactor trick would probably be the easiest way out. </div><div dir="auto"><br></div><div dir="auto">Thanks again for the assist </div><div><div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, Nov 23, 2019 at 7:49 PM Glenn Burt <<a href="mailto:glenn.burt@glbcc.com" target="_blank">glenn.burt@glbcc.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div lang="EN-US" link="blue" vlink="purple"><div><p class="MsoNormal">Not sure if the application notes are still available \u2013 here is one I have had since taking their training a couple of years ago. Hope it helps.<u></u><u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">-Glenn<u></u><u></u></p><p class="MsoNormal"><u></u> <u></u></p><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>Chris Sparadeo<br><b>Sent:</b> Friday, November 22, 2019 10:47 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>Subject:</b> [RE-wrenches] 600V DC contactor<u></u><u></u></p><p class="MsoNormal"><u></u> <u></u></p><p style="margin:0in;margin-bottom:.0001pt"><span><span style="font-size:13.0pt;color:#454545">Hi wrenchers,</span></span><span style="font-size:13.0pt;color:#454545"><u></u><u></u></span></p></div></div><div lang="EN-US" link="blue" vlink="purple"><div><p style="margin:0in;margin-bottom:.0001pt;font-stretch:normal;min-height:20.3px"><span style="font-size:13.0pt;color:#454545"><u></u> <u></u></span></p><p style="margin:0in;margin-bottom:.0001pt;font-stretch:normal"><span><span style="font-size:13.0pt;color:#454545">I am currently on the look out for a DC contactor to suit my needs. A little background:</span></span><span style="font-size:13.0pt;color:#454545"><u></u><u></u></span></p><p style="margin:0in;margin-bottom:.0001pt;font-stretch:normal;min-height:20.3px"><span style="font-size:13.0pt;color:#454545"><u></u> <u></u></span></p><p style="margin:0in;margin-bottom:.0001pt;font-stretch:normal"><span><span style="font-size:13.0pt;color:#454545">Per Sonnen Batterie tech support\u2019s recommendation I have installed a 10 kW SolarEdge HD Wave inventer coupled with the Sonnen Eco 12. Although the Sonnen Eco 12 uses an Outback Radian 8kW multimode inverter(of which Outback suggests to max AC couple input of 5kW) Sonnen says that AC PV input greater than 8kW will require a contactor </span></span><span><span style="font-size:13.0pt;color:#454545"> </span></span><span><span style="font-size:13.0pt;color:#454545">to interrupt a string or two of the grid interactive inverter so that it\u2019s output will remain less than the max 8kW input. That\u2019s fine and well, but when asked directly, Sonnen didn\u2019t have a part # for the contactor and suggested that anything over 150V DC would be difficult to find. Anyone know of a 600V rated contactor that would suit the bill? Essentially the contactor would need to sense grid interruption (via a 15A-AC breaker) and open a 600 V rated DC string. </span></span><span style="font-size:13.0pt;color:#454545"><u></u><u></u></span></p><p style="margin:0in;margin-bottom:.0001pt;font-stretch:normal;min-height:20.3px"><span style="font-size:13.0pt;color:#454545"><u></u> <u></u></span></p><p style="margin:0in;margin-bottom:.0001pt;font-stretch:normal"><span><span style="font-size:13.0pt;color:#454545">I\u2019ve done some preliminary searching and have come up empty handed. Any input would be greatly appreciated.</span></span><span style="font-size:13.0pt;color:#454545"><u></u><u></u></span></p><p style="margin:0in;margin-bottom:.0001pt;font-stretch:normal;min-height:20.3px"><span style="font-size:13.0pt;color:#454545"><u></u> <u></u></span></p><p style="margin:0in;margin-bottom:.0001pt;font-stretch:normal"><span><span style="font-size:13.0pt;color:#454545">Best,</span></span><span style="font-size:13.0pt;color:#454545"><u></u><u></u></span></p><p style="margin:0in;margin-bottom:.0001pt;font-stretch:normal;min-height:20.3px"><span style="font-size:13.0pt;color:#454545"><u></u> <u></u></span></p><p style="margin:0in;margin-bottom:.0001pt;font-stretch:normal"><span><span style="font-size:13.0pt;color:#454545">Chris </span></span><span style="font-size:13.0pt;color:#454545"><u></u><u></u></span></p><p class="MsoNormal">-- <u></u><u></u></p><div><div><div><div><div><div><p class="MsoNormal">Chris Sparadeo<u></u><u></u></p></div><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal">C_802-369-4458<u></u><u></u></p></div><div><p class="MsoNormal">H_802-728-3059<u></u><u></u></p></div></div></div></div></div></div></div></div><div lang="EN-US" link="blue" vlink="purple"><div></div></div>_______________________________________________<br>
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</div>-- <br><div dir="ltr" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><p style="color:rgb(0,0,0);margin:0in 0in 0.0001pt;font-size:11pt;line-height:1.25;font-family:Calibri,sans-serif"><span style="font-weight:bold"><em><span style="font-family:Arial,sans-serif;color:rgb(0,51,0)">Chris Sparadeo</span></em></span></p><p style="color:rgb(0,0,0);margin:0in 0in 0.0001pt;font-size:11pt;line-height:1.25;font-family:Calibri,sans-serif"><strong style="color:rgb(0,51,0);font-family:Arial,sans-serif"><em>NABCEP Certified PV Installation Professional # 042919-015652</em></strong><span style="font-weight:bold"><em><span style="font-family:Arial,sans-serif;color:rgb(0,51,0)"><br></span></em></span></p><p style="color:rgb(0,0,0);margin:0in 0in 0.0001pt;font-size:11pt;line-height:1.25;font-family:Calibri,sans-serif"><span style="font-weight:bold"><span style="font-family:Arial,sans-serif;color:rgb(0,51,0)">Catamount Solar, LLC</span></span></p><p style="color:rgb(0,0,0);margin:0in 0in 0.0001pt;font-size:11pt;line-height:1.25;font-family:Calibri,sans-serif"><span style="font-family:Arial,sans-serif;color:rgb(0,51,0)">4 Randolph Ave., Randolph, VT 05060</span></p><p style="color:rgb(0,0,0);margin:0in 0in 0.0001pt;font-size:11pt;line-height:1.25;font-family:Calibri,sans-serif"><span style="font-family:Arial,sans-serif;color:rgb(0,51,0)">C_(802) 369-4458</span></p><p style="color:rgb(0,0,0);margin:0in 0in 0.0001pt;font-size:11pt;line-height:1.25;font-family:Calibri,sans-serif"><span style="font-family:Arial,sans-serif;color:rgb(0,51,0)">O_(802) 728-3600</span></p><p style="color:rgb(0,0,0);margin:0in 0in 0.0001pt;font-size:11pt;line-height:1.25;font-family:Calibri,sans-serif"><span style="font-family:Arial,sans-serif;color:rgb(0,51,0)"><span style="color:blue;outline:0px"><a href="http://www.catamountsolar.com/" style="color:rgb(5,99,193);outline:0px" target="_blank">www.CatamountSolar.com</a></span></span></p><p style="color:rgb(0,0,0);margin:0in 0in 0.0001pt;font-size:11pt;line-height:1.25;font-family:Calibri,sans-serif"><span style="font-family:Arial,sans-serif;color:rgb(0,51,0)"><br></span></p><p style="color:rgb(0,0,0);margin:0in 0in 0.0001pt;font-size:11pt;line-height:1.25;font-family:Calibri,sans-serif"><span style="font-family:Arial,sans-serif;color:rgb(0,51,0)"><img src="https://docs.google.com/uc?export=download&id=1mCW-PHFLHFPeXrjcdIFP9qCjgiGEUCvd&revid=0BygFB0YkoiNNR2JhWEE1cEhwUnhQNW5obHV2MjNibktmWFUwPQ" width="200" height="200"><br></span></p></div></div></div></div>
</blockquote></div></div>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div>Chris Sparadeo</div><div><br></div><div><br></div><div>C_802-369-4458</div><div>H_802-728-3059</div><div></div></div></div></div></div></div>