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<div class="moz-cite-prefix">Rich,<br>
We simply use 12V Zephyr vents on our 24 and 48V systems. One FM
controller will power one 12V fan directly, or will run a 12V
relay for more than one. Is that a solution for you?<br>
<br>
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<p class="MsoNormal"><b>Allan <span class="SpellE">Sindelar</span></b><br>
<span style="font-size:10.0pt"><a
href="mailto:Allan@positiveenergysolar.com"><u><span
style="color:#000099">Allan@positiveenergysolar.com</span></u></a></span><br>
<span style="font-size:10.0pt">NABCEP Certified PV
Installation Professional <br>
NABCEP Certified Technical Sales Professional<br>
New Mexico EE98J Journeyman Electrician<br>
Founder and Chief Technology Officer<br>
<b>Positive Energy, Inc.</b>, a Certified B <span
class="SpellE">Corporation<sup><span
style="font-size:7.5pt">TM</span></sup></span><br>
3209 Richards Lane<br>
Santa Fe, New Mexico 87507<br>
<b>505 424-1112 office 780-2738 cell</b><br>
<a href="http://www.positiveenergysolar.com/"
target="_blank"><u>www.positiveenergysolar.com</u></a><o:p></o:p></span></p>
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On 8/8/2013 5:49 PM, Rich Nicol wrote:<br>
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<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hello
Wrenches,<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Does
anyone have any advice about what to use for a relay to
power a 48 volt Zephyr battery vent fan using the 12 volt
auxiliary output from the Midnite Classic Charge
controllers. The fan only draws 6 watts but my problem is
the 48 volt side of the equation. A supplier has recommend
a double pole/double throw relay rated for up to 30 amps at
24 volts wired in series. I’m curious if anyone knows of a
relay rated for 48volts (actually higher voltage since the
fan is signaled to come on when the battery reaches gassing
voltage) that would work in this application or if there is
widespread agreement that the 24volt rated relay would work
fine since we are requiring only minimal current and
spreading between two contacts.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">As
always, your input is greatly valued!<br>
Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Rich
<o:p></o:p></span></p>
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