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I believe midnite still has the remote trip DC PNL mount breakers, but of course, no birdhouse to make it work.
<div>Not sure what the trip trigger needs either as far as voltage.</div>
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<div>-MNEDC250RT</div>
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<div dir="ltr">Jeremy Rodriguez
<div>Solar Installation / Design</div>
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<div>All Solar, Inc.
<div>1453 M St. <br>
<div>Penrose Colorado 81240</div>
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<div>Sent by Jeremy's iPhone. Sorry for typos and shorthand. </div>
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<blockquote type="cite">On Jan 27, 2023, at 12:26 PM, William Miller via RE-wrenches <re-wrenches@lists.re-wrenches.org> wrote:<br>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana","sans-serif"">Friends:</span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana","sans-serif""> </span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana","sans-serif"">We have a large-ish residential off-grid system install coming up. The AHJ has said they will require a remote battery disconnect. I suspect there will be fire sprinkler
controls and a pressure pump that would become inoperable if this system were engaged. In this case we will apply for a waiver.</span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana","sans-serif""> </span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana","sans-serif"">The last time this was discussed here as far as I can find was October of 2020. At that time no one suggested any specific battery disconnect equipment.
</span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana","sans-serif""> </span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana","sans-serif"">To further clarify my needs: There will be 4 or 5 Radian 8048 inverters (5 or 6 4/0 battery circuits, ~350A each) and two 175 amp PV recombiner outputs. That is 6 poles
of high amperage DC disconnects. </span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana","sans-serif""> </span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana","sans-serif"">The battery array will be either a UnigyII VRLA or a lithium of a brand yet to be determined. In the case of lithium we will look for a system that can remotely enable a
BMS shutdown. In the case of a VRLA lead-acid, we will not have that luxury.</span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana","sans-serif""> </span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana","sans-serif"">I have done some considerable research and have not found viable, high amperage, remotely activated shutdown equipment.</span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana","sans-serif""> </span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana","sans-serif"">I am wondering what hardware others may be using to achieve remote battery disconnecting in these types of cases..</span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana","sans-serif""> </span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana","sans-serif"">William</span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana","sans-serif""> </span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial","sans-serif"">Miller Solar</span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial","sans-serif"">17395 Oak Road, Atascadero, CA 93422</span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial","sans-serif"">805-438-5600</span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial","sans-serif""><a href="http://www.millersolar.com/">www.millersolar.com</a></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial","sans-serif"">CA Lic. 773985</span></p>
<p class="MsoNormal"> </p>
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