Solar install
My day has finally come! I've been piecing together a system over the last 6 mos and am ready to begin the install. I have 4 105ah agm wired in parallel, 2-210w Evergreen 12v panels and 2-145w DM...
Forum Discussion
One charge controllers without ground fault fuses the PV - and Batt. - terminals are common. This is not the case with the Xantrex unit. In wiring up the panels to the controller you must connect the + and - PV input wires directly to the controller. You cannot connect the - straight to the battery. The + and - battery terminals in the controller will connect to the battery. Inside the Xantrex controller is a ground fault fuse. It will blow if more than 1 amp of current flows on the ground. This would indicate that your positive or negative PV wire was leaking current to ground somewhere. In order for the fuse to detect this the controller's ground terminal must be connected to chassis ground. It will work fine this way, or, you could not ground the chassis of the controller, thus disabling the ground fault detection feature, and it will work fine that way too.
Ground fault detection is required for NEC compliant residential installations. I don't know if it applies to RV's or not but I assume you're not getting the RV inspected.
The Xantrex XW is a great controller. I've installed around 20 of those with no problems at all.
Ground fault detection is required for NEC compliant residential installations. I don't know if it applies to RV's or not but I assume you're not getting the RV inspected.
The Xantrex XW is a great controller. I've installed around 20 of those with no problems at all.
