Foretravel Owners' Forum For owners and Fans of Foretravel Motorcoaches February 28, 2026 ...

Why not the 120x2 version?

We really don't need 2 leg output (we don't boondock) and our installation would also be what Scott had to do if we did 120x2. 

A little concerned with some of his last reported issues with the inverter itself, which is why I'm hoping for an update/recommendation.

Well It was a lot of retro work to install the double leg inverter. I have been extremely dissatisfied with it and its operation. I'm confident I'll be able to sort it out but actually put it on the back burner. I think it will end up going back to Victron and I'm confident they will take care of my issues. It is not internally switching from different powers sources and in there schematics they show an internal relay in the neutral circuit and I don't think it is switching causing my GFI issues. Still not being able to kneel happily makes working on it no fun. So disconnecting the L2 leg ( the reason I wanted it) more less resolves most of my issues. 20/20 hindsight its a hard pass for me. I so wanted to be able to mooch dock at a couple of our family destinations and currently it will not participate on a 15amp GFI outlet so it's junk to me. Hopefully I'll be more motivated next year. Non issue most of the way we use the coach boondocking.

We long ago removed the bath GFCI outlet and replaced with a regular non-GFCI outlet. Too many problems made the change practical. We are aware of how GFCI outlets work, but RVs are a different animal and the GFCI downleg fed other outlets, that may have contributed to issues.

plug the coach into a 20 110=v circuit that we never had issues with before and it trips the GFI as soon as the load control is set above one amp.  So as a workarounds to that we went to a non GFI and it worked normally. In looking in the logic it grounds the neutral during DC battery inverter use. This explains the GFI issue. I personally really like what a GFI provides.

Wire I'm using

I'm curious.
I installed my Victron 3000 multi 12v several years ago. All was fine until I had to move the coach to my street to allow construction on the house. I thought no big deal,I will use my 50 amp to 120v power cord to keep all the batteries charged for the few days I'm parked on the street. I used this cord numerous times when I still had the original Freedom inverter installed and never a problem.
I plugged the 120v cord in and immediately blew a breaker in the house. I then tried another outlet/circuit in the house and the same problem. I eventually gave up on the idea of using the 120v power cord.
I had a Mobile RV tech come and check my set-up to see if I did something wrong, he found no problems with my install. I put this issue on the "way back burner" to someday address.
Scott, does this sound like the same issue you have with your Victron, won't work with 120v power source cord plugged into the 50amp outlet with an adapter?

@dsd  How did you end up running that wire?  Did you try and run it in the floor cable run that goes from the foot of the bed to the closet space, or did you run it out of the back of the utility/tank bay / under the coach and up into the engine compartment?

Also has anyone relocated the mains/generator transfer switch from the foot of the bed (for those coaches that have it there) to another location?  I was thinking that if moved it would open up space in the floor cable run to allow room for those new 6/4 cables to/from the inverter as the existing 6/3 lines would no longer be in that space.

Here's a few thoughts for you.  I don't have a Victron, I still have the Xantrex Freedom SW3000 unit.  While boondocking, I wanted to be able to run off a 2000w inverter generator, mainly to bring the batteries back up without having to run the PowerTech.  I have a 50a to 110v adapter as well.  I did need to add a binding plug that binds the neutral and common to get it to work.  I also set the power share on the Xantrex to 10a as when the unit would first come on, it will surge 3-5 amps more than this setting.  At 15a, it would pop the overload on the generator, so 10a setting it was.  The next issue was that when the charger started charging, it was set for maximum output (150a DC).  I had to reduce the charger output % to 50% to keep it from trying to pull too much from the generator.  I assume the Victron also has a charger max charge % setting too.  You may need to reduce this to get it to work off 110v.

So to follow up I did install the 40 amp DC to DC charger to protect the coach alternator. I had checked every thing and thought it was working correct. Couple days before our departure date I double, triple checked that it was working correct. On ground power 220 volt working correct. On battery working correct. On generator I came across an issue. It was creating the L2 output by consuming L1 power. It was not passing power from the generator L2 to output of Inverter L2. Rechecked everything and put a service call into Victron. At this point I was wondering if I had programed the inverter wrong? Double checked programming and saw nothing about inverter input, although the manual shows the different internal switching for different configurations. Next day still no call back and we are getting close top a hard departure time. Being that the inverter will not manage the L2 leg I decided to do a work around by disconnecting the L2 output from the inverter and jumper int L2 from my surge protector back to the L2 in the circuit breaker panel. I would now manage L1 and saw no load for L2 because it was disconnected and worked okay. BUT I now was only using half of what I wanted and lost all the reasons to purchase and install this thing.

I checked mine today and my multiplus gets both legs from the generator and powers both legs. Attached picture is from it running on the generator.