Larry, Few relays are rated for 48V DC, as that DC voltage is high enough that relay life is compromised by arcing of the contacts. However, the current of the Power Vent is so tiny that this shouldn't be an issue. If you have an old open-coil power relay with a 12V coil lying around the shop, use it. Otherwise, an automotive relay is easy and cheap to use.
You may find it as easy to replace the 48V Power Vent with a 12V unit. There the main issue is that the 12V and 24V Power Vents have a 2" diameter exhaust vent, while the 48V is 3". Allan at Positive Energy -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Larry Brown Wrenches. On an upgrade to an existing system, we just installed a Xantrex XW6048 inverter. We have a 48 volt dc battery box vent fan that we used to run through the relay on the old SW5548. The XW6048 has a 12 vdc aux output so I assume we need to install a relay to run the fan, 12vdc input, that will allow 48 vdc output Any suggestions on what relay to use? Thanks Larry Brown Sun Mountain _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
