Trailer Electrical Ground/Frame and Solar
The negative terminal of the battery goes to the frame via 6ga wire. And I think the AC ground goes to the frame when we're not off-grid. I'll wire the MPPT controller with two 6ga wires going to...
Forum Discussion
BoonHauler wrote:brulaz wrote:
Rogue says to run a separate 10ga from the MPPT grd terminal to "a common location in the DC load center, and through a Ground Fault Protection Device (GFPD), to comply with NEC requirements".
What sort of GFPD are people using if anything? Could I just connect the grd to the neg wire in the load center? Or should i just ignore the Mppt grd terminal?
What model controller do you have? I'd like to see what context they're refering to.
As for Ground Fault Breakers, here's a Link
Here's what that link says for the MNDC-GFP63:
"The 2011 NEC requires a GFP now on all systems. It used to be that they were required only when PV panels were installed on the roof of a dwelling. Now even if you Solarize your doghouse, a ground fault protector is required in order to pass inspection."
Sort of agrees with the quote from Rogue above. It's a Rogue 3048.
I presume you would put this between the mppt grd and the frame? Maybe if I ever place another order to NAWS I'll get one.
EDIT: Maybe not.
They seem to be high amperage 63A,80A and designed for grnd faults between grounded solar panels and battery neg. Half the MNDC-GFP63 is a 63A breaker between the solar panel + and the mppt + in (with another regular 63A breaker in series) and the other half breaker of the MNDC-GFP63 is from the solar panel grnd to battery neg.
My system is only 15A max with un-grounded solar panels.
