This issue has been discussed LOTS. You may not get much response to a question that has been addressed so thoroughly other places. Look around on the forums and you will find your answers.
I’ve tried everyone I’ve found so far. I didn’t bother listing all of them but I have over 15 suggestions so far. The latest is to plug into a non-GFCI receptacle. The NEC requires GFCI for 15/20 amp Recepts.
Short answer is the multiplus transfer switch will create a ground fault for just long enough to trip a GFCI. Victron doesn’t make their products specifically for the North American market and doesn’t really care about NEC(apparently). Or maybe a less cynical way to say it would be they aren’t going to modify the entire Multiplus line just for north america(at least they haven’t yet). Solution is as stated above. Use a non GFCI outlet. If you don’t have one available you will need to install one. 30 and 50 amp RV outlets don’t need to be GFCI protected. All other solutions don’t work consistently or involve unsafely disabling the ground(don’t do that).
There, I just encapsulated 90% of the basics of the discussions about this topic and I’m not even Grok!
And not all 15 and 20 amp outlets need GFCI protection. Bathrooms, kitchens, garages and outside outlets only.
OGPS
(Ed @ Off-Grid Power Systems - offgridps.com)
8
Licensed electrical contractor here. You said:
That is incorrect, but as far as outside and garage outlets go, you are correct, in addition to other “wet” areas. See below for a summary. I’m already using 2026 code so that is what I’ll post a summary for.
You can either install a circuit that doesn’t have GFCI protection, run an extension cord to a non-GFCI receptacle, or install a 30A or 50A RV outlet. I won’t respond any further to this thread since you have all the answers. But I wanted to at least correct your misinformation.
Dude, I totally get your frustration. You purchase the top of the line equipment and then it seems uncanny that it wont work in one of the most basic and common circumstances you would us it in. Believe me, I have been around this issue myself a number of times now. Trust what you have read so far.
NEC Article 551.71(F) and referenced by 210.8(B), though specific exceptions allow for non-GFCI protection on larger 30/50A circuits, while 15/20A circuits at RV parks must be GFCId.
