<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>
                        <br>
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