<div dir="ltr">Jay,<div><br></div><div>You're triggering some serious PTSD with this question. When 2017 NEC came out Mass was the first state to adopt it and the inspectors started requiring arc fault breakers on the micro inverter branch circuits, we were using Enphase. At the time they didn't work, weren't really listed for backfeed, and caused all kinds of problems. We ended up appealing to the state board and lost only for the state board to turn around a few months later and repeal that requirement. We ended up with thousands of dollars in arc fault breakers sitting in boxes in the shop.</div><div><br></div><div>I'm not sure if they've worked out the technical issues but if it's anything like it was in the past it's going to be a nightmare of false arc faults.</div><div><br></div><div>Thanks,</div><div>Will</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Apr 25, 2019 at 1:10 PM Jay <<a href="mailto:jay.peltz@gmail.com">jay.peltz@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hi all,<br>
<br>
For micro inverters, what OCP is available for ground fault ( or arc fault) <br>
for roof top mounted on a living structure?<br>
<br>
Thx<br>
Jay<br>
<br>
<br>
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</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><b style="font-size:12.8px">Will White</b><div style="font-size:12.8px">Curriculum Developer</div><div style="font-size:12.8px"><br></div><div style="font-size:12.8px"><img src="https://docs.google.com/uc?export=download&id=12H3Cu2gnX7TKTeETn1WsYqa8cp6gsEj1&revid=0B7yAwArWHgPbNzhGK00wT0diY1c1NWhlRlNocDRVd045eTFjPQ" width="420" height="52"><br></div><div style="font-size:12.8px"><span style="font-size:12.8px">e: </span><a href="mailto:will@solarenergy.org" style="color:rgb(17,85,204);font-size:12.8px" target="_blank">will@solarenergy.org</a><span style="font-size:12.8px"> </span><br></div><div><div style="font-size:12.8px"><span style="font-size:12.8px">w: <a href="http://www.solarenergy.org/" style="color:rgb(17,85,204)" target="_blank">www.solarenergy.org</a> </span></div><div style="font-size:12.8px">p: 802-272-3092<br></div><div style="font-size:12.8px"><span style="font-size:12.8px"><br></span></div><div style="font-size:12.8px"><span style="font-size:12.8px"><div>NABCEP Certified PV Installation Professional</div><div># 093006-34</div></span></div><div><i style="color:rgb(102,102,102);font-size:x-small"><span style="font-family:Arial,sans-serif"><br></span></i></div><div><i style="color:rgb(102,102,102);font-size:x-small"><span style="font-family:Arial,sans-serif">FACT: </span><span style="line-height:10.7px;font-family:Arial,sans-serif">If we covered 0.33% of the earth with solar panels, we could power the world with renewable energy.</span></i><br></div></div><div><p style="font-size:12.8px;margin-bottom:0.0001pt"><font size="1"><span style="font-family:Arial,sans-serif"><font color="#666666">Do you envision a world powered by renewable energy? <a href="http://solarenergy.org/donate" style="color:rgb(17,85,204)" target="_blank">Be the change</a>.</font></span></font></p></div></div></div></div></div></div></div></div></div></div></div></div></div>