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--></style></head><body lang="EN-US" link="blue" vlink="purple"><div class="WordSection1"><p class="MsoPlainText">Michael:</p><p class="MsoPlainText"> </p><p class="MsoPlainText">I feel your pain. There are no solutions that are not expensive and/or cumbersome.</p><p class="MsoPlainText"> </p><p class="MsoPlainText">I think we need to be careful to not confuse "Rapid Shut Down" with "disconnecting means": </p><p class="MsoPlainText"> </p><p class="MsoPlainText"> RSD is for first responders and the actuator needs to be outside of the building. That is not required by 706 and I don’t imagine this is what the inspector is looking for.</p><p class="MsoPlainText"> </p><p class="MsoPlainText"> Disconnecting means is for servicing and can be anywhere as long as it is line of sight or its location is indicated by signage.</p><p class="MsoPlainText"> </p><p class="MsoPlainText">If it does not require a tool to open the front cover of the battery cabinet, the breakers on the battery modules are readily accessible. This does not satisfy the requirement to be lockable.</p><p class="MsoPlainText"> </p><p class="MsoPlainText">If you could contrive a locking mechanism for the Soul-Arc battery breaker you just <i>might</i> get the AHJ to allow the inverter breaker to be considered the disconnecting means. This would depend on if the inspector is willing to compromise.</p><p class="MsoPlainText"> </p><p class="MsoPlainText">I know this would mean modifying the dead front. I would replace the cheesy plastic dead-front with a 1/4" thick Plexiglas. Rivet on a locking, sliding bolt and you have created a lock-out. See below:</p><p class="MsoPlainText"> </p><p class="MsoPlainText"><img width="749" height="649" id="Picture_x0020_1" src="cid:image002.jpg@01DC00D2.C8C86260" alt="cid:image002.jpg@01DC00D2.C8C86260"></p><p class="MsoPlainText"> </p><p class="MsoPlainText">I know it’s a long shot…</p><p class="MsoPlainText"> </p><p class="MsoPlainText">William Miller</p><p class="MsoPlainText"> </p><p class="MsoPlainText">Miller Solar</p><p class="MsoPlainText">17395 Oak Road, Atascadero, CA 93422</p><p class="MsoPlainText">805-438-5600</p><p class="MsoPlainText"><a href="http://www.millersolar.com">www.millersolar.com</a></p><p class="MsoPlainText">CA Lic. 773985</p><p class="MsoPlainText"> </p><p class="MsoPlainText"> </p><p class="MsoPlainText">-----Original Message-----<br>From: RE-wrenches [mailto:<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a>] On Behalf Of MDElectricSolar via RE-wrenches<br>Sent: Tuesday, July 29, 2025 7:44 AM<br>To: <a href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a><br>Cc: MDElectricSolar<br>Subject: [RE-wrenches] Battery RSD</p><p class="MsoPlainText"> </p><p class="MsoPlainText">Wrenches,</p><p class="MsoPlainText">I have a building inspector in my county of Sonoma who has just told me that we need to install a rapid shutdown switch of some type between my LFZ battery bank and my Solark 15k inverter. He mentioned some type of knife switch within 5 feet of the equipment. I cannot find any reference to this requirement anywhere but he insists it is required. These batteries happen to be simplify or brakes and Stratton batteries and each battery has its own 80 amp breaker on the battery and the Solark has a battery disconnect switch built-in. We do have module level RSD which kills the solar output as well as the inverter output when the button is pushed. Does anyone have any experience with this or can they point me to the correct code section or what are others doing to comply with this requirement?</p><p class="MsoPlainText"> </p><p class="MsoPlainText"> </p><p class="MsoPlainText">Michael D Nelson</p><p class="MsoPlainText">MD Electric & Solar, Inc.</p><p class="MsoPlainText">707-684-0064 mobile</p><p class="MsoPlainText">707-884-1862 office</p><p class="MsoPlainText"><a href="http://www.mdelectricsolar.com">www.mdelectricsolar.com</a></p><p class="MsoPlainText"><a href="http://www.facebook.com/mdelectricandsolar">www.facebook.com/mdelectricandsolar</a></p></div></body></html>