Post by Mogimus on May 12, 2015 9:40:45 GMT -8
Hello,
I just installed (2) 100W panels with a 20A MPPT controller to my Trailer. I have one main cutoff switch to the negative line for the trailer. When I installed the panels, I ran them direct to the batteries, overriding the cutoff switch.
The panels are setup to be mounted to the roof of the trailer or mounted on a frame placed on the ground with an extension cord when parked in the shade. I read that the MC4 connectors should not be disconnected under load which got me thinking about adding a cutoff switch to the system. The question is where? Can I simply connect the negative battery cable from the controller to the cutoff switch already installed for the camper or should I install an independent switch just for the solar system? And is the negative wire the right place to put it?
Thanks.
I just installed (2) 100W panels with a 20A MPPT controller to my Trailer. I have one main cutoff switch to the negative line for the trailer. When I installed the panels, I ran them direct to the batteries, overriding the cutoff switch.
The panels are setup to be mounted to the roof of the trailer or mounted on a frame placed on the ground with an extension cord when parked in the shade. I read that the MC4 connectors should not be disconnected under load which got me thinking about adding a cutoff switch to the system. The question is where? Can I simply connect the negative battery cable from the controller to the cutoff switch already installed for the camper or should I install an independent switch just for the solar system? And is the negative wire the right place to put it?
Thanks.
