<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body><div><div style="font-family: Calibri,sans-serif; font-size: 11pt;">Also be aware that you must meet or exceed the AIR/AIC of the existing service, which may be tough to do with a simple branch breaker used as an new PV service equipment.<br>Refer to NEC 110.9 and 110.10.<br><br>Glenn</div></div><div dir="ltr"><hr><span style="font-family: Calibri,sans-serif; font-size: 11pt; font-weight: bold;">From: </span><span style="font-family: Calibri,sans-serif; font-size: 11pt;"><a href="mailto:autonomousenergies@gmail.com">AE Solar</a></span><br><span style="font-family: Calibri,sans-serif; font-size: 11pt; font-weight: bold;">Sent: </span><span style="font-family: Calibri,sans-serif; font-size: 11pt;">11/30/2016 11:12</span><br><span style="font-family: Calibri,sans-serif; font-size: 11pt; font-weight: bold;">To: </span><span style="font-family: Calibri,sans-serif; font-size: 11pt;"><a href="mailto:re-wrenches@lists.re-wrenches.org">RE-wrenches</a></span><br><span style="font-family: Calibri,sans-serif; font-size: 11pt; font-weight: bold;">Subject: </span><span style="font-family: Calibri,sans-serif; font-size: 11pt;">Re: [RE-wrenches] Retaining Clips</span><br><br></div><div dir="ltr">
<p class="MsoNormal"><span style="font-family: calibri;">Sorry I should have elaborated more from the
beginning. <span></span></span></p>
<p class="MsoNormal"><span style="font-family: calibri;"> </span></p>
<p class="MsoNormal"><span style="font-family: calibri;">I am using the panel as a service disconnect for
a lineside connection (can’t use a fused/bladed disco because of space
constraints). Originally I bought a QO 70A panel, but soon realized that the
Square D retention clip (PK2MB) is only compatible with their larger panels. So
I bought a larger panel (100A 8 Circuit) and then received some feedback that
having the open spaces (even if labeled that “Do Not Add Loads”) could raise a
flag with an inspector. So then I was back on the hunt for a dedicated 2 Pole
60A or 70A panel with a compatible retention clip for a 30A breaker. Eaton’s retention
options only start in the 60A range (the smaller breakers don’t have the hole
in them to put the bolt through). Square D said they don’t have an option for
their 70A panel. There aren’t any good Siemans distributors near me but I wasn’t
finding an option via google for them either.<span></span></span></p>
<p class="MsoNormal"><span style="font-family: calibri;"> </span></p>
<p class="MsoNormal"><span style="font-family: calibri;">I talked with another Wrencher on the phone
and received this feedback which I’m just going to cut and paste to include it
in this thread:<span></span></span></p>
<p class="MsoNormal"><span style="font-family: calibri;"><br>
“</span><span style="color: rgb(26, 26, 26); font-family: calibri;">The
NEC doesn’t require a hold down clamp for the circuit breaker unless it can be
backfed from a multi-mode or stand-alone inverter (690.10(E)).</span><span style="color: rgb(26, 26, 26); font-family: calibri;"><span></span></span></p>
<p class="MsoNormal"><span style="color: rgb(26, 26, 26); font-family: calibri;">The language implies that a hold-down is therefore not required
elsewhere. Most modern breakers (def. QO’s) are not marked “line” and “load” so
no problem there (also in same code section).</span><span style="color: rgb(26, 26, 26); font-family: calibri;"><span></span></span></p>
<p class="MsoNormal"><span style="color: rgb(26, 26, 26); font-family: calibri;"> </span><span style="color: rgb(26, 26, 26); font-family: calibri;"><span></span></span></p>
<p class="MsoNormal"><span style="color: rgb(26, 26, 26); font-family: calibri;">Even
when it was a requirement for all PV outputs, John Wiles had argued that taking
off the panel cover, which required a tool, served as the hold-down, and this
was generally accepted.”<span></span></span></p>
<p class="MsoNormal"><span style="color: rgb(26, 26, 26); font-family: calibri;"> </span></p>
<p class="MsoNormal"><font color="#1a1a1a" face="calibri">So
taken that advice I’m back to using the QO 70A panel but without a retention
clip (or calling the lid the "retention clip").<span></span></font></p>
<p class="MsoNormal"><span style="color: rgb(26, 26, 26); font-family: calibri;"> </span></p>
<p class="MsoNormal"><font color="#1a1a1a" face="calibri">For
what its worth I have passed inspections prior using the retaining clip from a generator interlock kit
(QOCGK2C) on a QO 100A panel, but felt like there must be a better option out there....</font></p>
</div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr">Adam Katzman<br>Autonomous Energies<br>PO Box 1245</div><div dir="ltr">Kingston, NY 12402<br><a href="http://www.autonomousenergies.com" target="_blank">www.autonomousenergies.com</a><br>(518) 567-1468<br><br></div></div></div></div></div></div></div>
<br><div class="gmail_quote">On Wed, Nov 30, 2016 at 10:45 AM, Drake <span dir="ltr"><<a href="mailto:drake.chamberlin@redwoodalliance.org" target="_blank">drake.chamberlin@redwoodalliance.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin: 0px 0px 0px 0.8ex; padding-left: 1ex; border-left-color: rgb(204, 204, 204); border-left-width: 1px; border-left-style: solid;">
<div>
Siemens has main breaker retainers. The retainers for QO seem work on
some boxes and not others. It doesn't work on 6 space boxes I've
purchased, but does work on the 8. <br><br>
At 10:14 PM 11/29/2016, you wrote:<br><br>
<blockquote class="m_-4828883845750296934cite" type="cite">Wrenchers,<br><br>
I’m trying to find a 60A 2 Pole Breaker Box that has a compatible
retaining clip. The QO retaining clip (PK2MBCP) seems to only be
</blockquote></div></blockquote></div></div><br><div>[The entire original message is not included.]</div></body></html>