<p dir="ltr">As i recall it was 24 volt</p>
<div class="gmail_quote">On Feb 2, 2015 8:28 AM, "Mark Frye" <<a href="mailto:markf@berkeleysolar.com">markf@berkeleysolar.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
OK. So did you run a line 120V up to the box on the roof to energize
the coil of the relay up there?<br>
<br>
Mark Frye<br>
<br>
<div>On 2/2/2015 9:13 AM, Jerry Shafer
wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div>The units we have used have a large contactor inside the
combiner box made by AMtec Solar. this was required to control
the shut down includes a fire button done on the ground floor<br>
</div>
Jerry<br>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Mon, Feb 2, 2015 at 5:49 AM, Mark
Frye <span dir="ltr"><<a href="mailto:markf@berkeleysolar.com" target="_blank">markf@berkeleysolar.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000"> Jerry,<br>
<br>
What unit did you use?<span><font color="#888888"><br>
<br>
Mark Frye</font></span>
<div>
<div><br>
<br>
<div>On 2/2/2015 7:43 AM, Jerry Shafer wrote:<br>
</div>
<blockquote type="cite">
<p dir="ltr">Wrenches<br>
We have installed some of these rapid shut down
units and they are always located close to the
array and ours kill the DC instantly as long as
the inverter was running when this accures did not
test it with inverters already off.<br>
Jerry</p>
<div class="gmail_quote">On Feb 2, 2015 5:34 AM,
"Christopher Warfel" <<a href="mailto:cwarfel@entech-engineering.com" target="_blank">cwarfel@entech-engineering.com</a>>
wrote:<br type="attribution">
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">We have a interpretation
problem among some people I work with with, and
690.12 Rapid Shut Down and the the 10 second
time for reducing ac and dc conductors to 240ma,
and 30V. The word "initiation" seems to
indicate that all affected conductors need to be
at these levels within 10 seconds of
de-energizing either the ac or dc conductors. If
so, then the disconnects need to be co-located
to meet this requirement if this interpretation
is correct.<br>
<br>
I have read Mr. Brook's article in Solar Pro,
but AHJs may feel differently.<br>
<br>
Would anyone care to weigh in on their
interpretation?<br>
<br>
Thank you, Chris<br>
<br>
<br>
<br>
<br>
<br>
-- <br>
Christopher Warfel, President<br>
ENTECH Engineering, Inc.<br>
PO Box 871, Block Island, RI 02807<br>
<a href="tel:401-466-8978" value="+14014668978" target="_blank">401-466-8978</a><br>
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