<div dir="auto">If there is some kind of case flange in a convenient spot one might use one of these:</div><div dir="auto"><br></div><div dir="auto"><div><img src="cid:199a6d2555da413cd2f1" style="max-width: 100%;"></div><div dir="auto"><br></div>On a related note: I installed 3 Deka Duration batteries wall-mounted in my shop. The manufacturer provided no means to enclose conductors in a raceway. I cobbled together some sections of 6x6 gutter with an opening cut into each to enclose conductors. It worked out ok but was time consuming. I like the Duration but I don’t like the lack of raceway options. <br clear="all"><br clear="all"><div dir="auto"><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><br>William Miller<br>Miller Solar.com<br>805-438-5600<br><a href="http://www.millersolar.com">www.millersolar.com</a><br></div></div></div><div><br></div><div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Thu, Oct 2, 2025 at 1:58 PM Jason Szumlanski 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:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">For batteries like the Midnite PowerFlo16 or EG4 Wallmount using a NEC Chapter 3 wiring method, what do you do in regards to running an EGC with the DC circuit conductors in a raceway? Midnite, for example, supplies a #10 EGC to bond the case of the battery, but this is not suitable for a circuit with an ampacity of 210A per NEC Table 250.122. It's not addressed in manuals from these manufacturers. </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">It would be easy enough to run a #4 copper EGC with the 2/0 battery cables, but where would you terminate it at the battery end? The case ground screws are far too small. I suppose you could use a grounding bushing if the raceway is not itself qualified as the EGC. In cases where you have a conduit box like EG4 or if you set a Midnite AIO on a wiring trough, they supply plastic bushings to use, so there is no solid electrical continuity between the inverter and wiring trough, yet you seemingly need to run up to a #4 EGC through the opening with the battery cables. Where would that terminate in the trough or on the battery?</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">I haven't had any issues with AHJs by just running a #10 with the circuit conductors and making sure all metallic parts are bonded, but something doesn't seem right about all of this, and I want to be prepared if called out by an inspector.</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">Jason Szumlanski</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Florida Solar Design Group</div></div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><b><br></b></div></div></div></div></div></div></div></div></div>
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