SMA makes a SunnyBoy 4000US CL (CL for current limited)....This is actually a 3800 watt inverter with a max continuous output rated at 16A allowing you to use a 20A backfeed breaker in a 100A panel and still meet the 120% rule......It should be readily available from SMA but maybe not on the distributors shelf........<br>
We have used them before to satisfy this requirement with no problems....<br>Cheers.<br><br><br>-- <br>Sunny Regards,<br>Kirpal Khalsa<br>NABCEP Certified Solar PV Installer<br>Renewable Energy Systems<br><a href="http://www.oregonsolarworks.com">www.oregonsolarworks.com</a><br>
541-218-0201 m<br>541-592-3958 o<br><br><br><div class="gmail_quote">On Sun, Oct 31, 2010 at 12:58 PM, Glenn Burt <span dir="ltr"><<a href="mailto:glenn.burt@glbcc.com">glenn.burt@glbcc.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div link="blue" vlink="purple" lang="EN-US">
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<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">We are opting more and more for
supply side connections in these situations (assuming convincing the customer
that an upgrade to a 200A service/panel is not an option). We have yet to run
into an AHJ that cannot be made to see this is a good option and we use Ilsco
Kup-L-Taps to pierce the main conductors inside the load center, prior to their
landing on the main breaker.</span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"> </span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">-Glenn Burt</span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">Alteris Renewables, Inc.</span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"> </span></p>
<div>
<div style="border-width: 1pt medium medium; border-style: solid none none; border-color: rgb(181, 196, 223) -moz-use-text-color -moz-use-text-color; padding: 3pt 0in 0in;">
<p class="MsoNormal"><b><span style="font-size: 10pt;">From:</span></b><span style="font-size: 10pt;">
<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org" target="_blank">re-wrenches-bounces@lists.re-wrenches.org</a>
[mailto:<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org" target="_blank">re-wrenches-bounces@lists.re-wrenches.org</a>] <b>On Behalf Of </b>Dave
Palumbo<br>
<b>Sent:</b> Sunday, October 31, 2010 2:35 PM<br>
<b>To:</b> 'RE-wrenches'<br>
<b>Subject:</b> Re: [RE-wrenches] 3.7kW grid tie</span></p>
</div>
</div><div><div></div><div class="h5">
<p class="MsoNormal"> </p>
<p class="MsoNormal">AC Point of Connection could be to a backfed 20A DP breaker
in the existing GE TM3210CCU load center (100A MB with 100A busbar) if the SMA
SB3800 inverter was still available. But a SB4000 requires a 25A breaker which
violates the 120% rule with the existing panel.</p>
<p class="MsoNormal">Comments on the options below. </p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">#1) Go with another 240v grid tie inverter in the 3800W
range, so we can use a 20 Amp breaker. I see PV Powered and Kaco have
3500’s listed. Any 3.7, or 3.8kW inverters?</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">#2) Is it possible to either, change out the Main Breaker in
the above GE load center to a lower amperage MB, or add a Plug In Breaker.
There is a GE “feeder type” breaker # THQL2190 (90 A DP). Could we
use this as the main breaker for the load center above? It is listed as a
10KAIC breaker.</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">#3) Swap out existing 32 space load center and replace with
150AML panel with 100A MB kit.</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Thanks,</p>
<p class="MsoNormal">Dave Palumbo</p>
</div></div></div>
</div>
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