<div dir="auto">It seems to me the only viable option is to not put the electronics in any building with other uses. That avoids the requirement (unless that exception is changing). </div><div dir="auto"><br></div><div dir="auto">A line of pre-fab, stand-alone enclosures might be a direction for any manufacture or integrator to explore. <br clear="all"><br><div dir="auto"><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature">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 Tue, Jan 27, 2026 at 11:55 AM Sue Stankevitz 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">At this time Midnite Solar does not have a replacement for the string level RSD on our roadmap. With the new UL requirement for double redundancy failsafe requiring substantial design change the decision was made to no longer push forward in that market.<br>
<br>
Sue Stankevitz<br>
<br>
MidNite Solar, Inc.<br>
<br>
(360) 403-7207 (XT122)<br>
<br>
-----Original Message-----<br>
From: RE-wrenches <<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org" target="_blank">re-wrenches-bounces@lists.re-wrenches.org</a>> On Behalf Of Brett Stigile via RE-wrenches<br>
Sent: Monday, January 26, 2026 10:42 PM<br>
To: <a href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank">re-wrenches@lists.re-wrenches.org</a><br>
Cc: Brett Stigile <<a href="mailto:brett@oregonsunwrangler.com" target="_blank">brett@oregonsunwrangler.com</a>><br>
Subject: [RE-wrenches] MidNite MNSSR-600-SS<br>
<br>
I was hoping to do an up coming job with MidNite Solar (MNSSR-600SS) string level shut down. However, I just learned that the product has been discontinued. I'm moving forward with AP smart because I don't have time to mess with it.<br>
<br>
However, I have several questions.<br>
<br>
Will a similar new product take its place?<br>
<br>
If a string level shut down device is available again will that satisfy<br>
690.12 code requirements for roof mounted residential under NEC 2023 or NEC 2026 on it's own? Or does UL3741 come into play?<br>
<br>
For example, would a MidNite AIO with Unirac NXT racking (which is<br>
UL3741) with string level shut down and of course wiring everything nice and neat with appropriate listed wire management comply with NEC under<br>
2023 or 2026 code?<br>
<br>
I'm just trying to figure out if string level shut down is a viable option with new code cycles or if it is a waste of time.<br>
<br>
thank you<br>
<br>
--<br>
Brett Stigile<br>
Owner/Renewable Energy Electrician<br>
503-317-7950<br>
<a href="mailto:brett@oregonsunwrangler.com" target="_blank">brett@oregonsunwrangler.com</a><br>
<br>
Oregon Sun Wrangler LLC<br>
CCB: 240661<br>
License: 66LRT<br>
NABCEP PV Installation Professional<br>
certification: PV 100414-008123<br>
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</blockquote></div></div>