<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">HI Allan and Walt,<div><br></div><div>I might suggest a Solid State relay instead of a standard unit.</div><div><br></div><div>This will work fine on the MX AUX relay, are totally sealed, and very reliable.</div><div><br></div><div>The MX model line is no more, been replaced with the FM 60/80.</div><div><br></div><div>jay</div><div><br></div><div>Peltz Power<br><div><div>On Sep 22, 2008, at 8:39 AM, Allan Sindelar wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0; "><div lang="EN-US" vlink="purple" link="blue"><div><span class="609182515-22092008">Walt,</span></div><div><span class="609182515-22092008">In my experience, relays are simple and reliable solutions, especially the 30A open-coil type. I would suggest the MX60's LVD auxiliary function to control a 12V DPST open-coil relay with a 12V coil (Grainger 5Z556). To add additional protection against long-term arcing causing contact pitting, series or parallel the contacts.</span></div><div><span class="609182515-22092008">What's an MS-60?</span></div><div><span class="609182515-22092008">Allan at Positive Energy</span></div><div><span class="609182515-22092008"></span> </div><div></div><div class="OutlookMessageHeader" lang="en-us" dir="ltr" align="left"><font face="Tahoma" size="2">-----Original Message-----<br><br></font></div><div class="Section1"><div style="font-size: 11pt; margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; font-family: Calibri, sans-serif; ">Hello all,<o:p></o:p></div><div style="font-size: 11pt; margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; font-family: Calibri, sans-serif; "><o:p> </o:p></div><div style="font-size: 11pt; margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; font-family: Calibri, sans-serif; ">I have an application where a customer has a continuous 40watt load in a remote location (similar to telecom). <o:p></o:p></div><div style="font-size: 11pt; margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; font-family: Calibri, sans-serif; "><o:p> </o:p></div><div style="font-size: 11pt; margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; font-family: Calibri, sans-serif; ">We are looking at the MS-60 or MX product for charge control, but neither of these has a LVD without using additional relay equipment.<o:p></o:p></div><div style="font-size: 11pt; margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; font-family: Calibri, sans-serif; "><o:p> </o:p></div><div style="font-size: 11pt; margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; font-family: Calibri, sans-serif; ">The charging current coming in from the panels (if we are forced to stay with 12V) is right at 60 amps.<o:p></o:p></div><div style="font-size: 11pt; margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; font-family: Calibri, sans-serif; "><o:p> </o:p></div><div style="font-size: 11pt; margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; font-family: Calibri, sans-serif; ">To get the low voltage disconnect function, do you see any problem going with multiple PS-30M charge controllers, and using just one of them for the 40W load?<o:p></o:p></div><div style="font-size: 11pt; margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; font-family: Calibri, sans-serif; "><o:p> </o:p></div><div style="font-size: 11pt; margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; font-family: Calibri, sans-serif; ">Thanks,<o:p></o:p></div><div style="font-size: 11pt; margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; font-family: Calibri, sans-serif; "><o:p> </o:p></div><div style="font-size: 11pt; margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; font-family: Calibri, sans-serif; ">Walt</div></div>_______________________________________________<br>List sponsored by Home Power magazine<br><br>List Address:<span class="Apple-converted-space"> </span><a href="mailto:RE-wrenches@lists.re-wrenches.org" style="color: blue; text-decoration: underline; ">RE-wrenches@lists.re-wrenches.org</a><br><br>Options & settings:<br><a href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org" style="color: blue; text-decoration: underline; ">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a><br><br>List-Archive:<span class="Apple-converted-space"> </span><a href="http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org" style="color: blue; text-decoration: underline; ">http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</a><br><br>List rules & etiquette:<br><a href="http://www.re-wrenches.org/etiquette.htm" style="color: blue; text-decoration: underline; ">www.re-wrenches.org/etiquette.htm</a><br><br>Check out participant bios:<br><a href="http://www.members.re-wrenches.org" style="color: blue; text-decoration: underline; ">www.members.re-wrenches.org</a><br><br></div></span></blockquote></div><br></div></body></html>