<div dir="auto">Drake:</div><div dir="auto"><br></div><div dir="auto">I tried running 48 VDC muffin fans on battery voltage. They failed. I switched to a Dc-Dc converter (12 or 24, can’t remember) from digi-key and problem solved. </div><div dir="auto"><br></div><div dir="auto">Point being battery voltage ranges may be too extreme for some components. <br clear="all"><br clear="all"><div dir="auto"><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><br>William Miller<br>Miller Solar.com<br>805-438-5600<br><a href="http://www.millersolar.com">www.millersolar.com</a><br></div></div></div><div><br></div><div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Dec 13, 2023 at 8:08 AM Drake Chamberlin via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;padding-left:1ex;border-left-color:rgb(204,204,204)"><div style="font-size:10pt;font-family:Verdana,Geneva,sans-serif">
<div style="margin:0px;padding:0px;font-family:monospace"><span style="font-size:12pt;font-family:monospace">Hello,</span></div>
<div style="margin:0px;padding:0px;font-family:monospace"> </div>
<div style="margin:0px;padding:0px;font-family:monospace"><span style="font-size:12pt;font-family:monospace">Does anyone know of a 48 VDC temperature sensing relay? I need to use one to control a fan in a 48 V battery bank, to bring in cold air when the bank gets too hot from the wood heating system in the house. </span></div>
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<div style="margin:0px;padding:0px;font-family:monospace"><span style="font-size:12pt;font-family:monospace">The relay needs to operate with the 48 VDC power supply and disconnect a small current with 48 VDC contacts.</span></div>
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<div style="margin:0px;padding:0px;font-family:monospace"><span style="font-size:12pt;font-family:monospace">Thank you,</span></div>
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<div style="margin:0px;padding:0px;font-family:monospace"><span style="font-size:12pt;font-family:monospace">Drake </span></div>
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<p style="font-family:monospace"><em style="font-family:monospace">Drake Chamberlin</em></p>
<p style="font-family:monospace"><em style="font-family:monospace">Athens Electric LLC</em></p>
<p style="font-family:monospace"><em style="font-family:monospace">Ohio Electrical Contractor’s License 44810</em></p>
<p style="font-family:monospace"><em style="font-family:monospace">NABCEP Certified PV Installation Professional</em></p>
<br><br>
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