question

The AC Out 2 relay has a delay of 2 minutes. Do you have something connected to AC Out 2?

I don't have anything on AC2 output. Later that day the power started to hold for several hours at a time. It seemed like maybe the park started to clear out a bit. maybe it was just overloaded. But it scares me cause I'm going to a campground is a couple weeks that I had allot of power issues last year. (before Mutiplus was Installed) so I'm hoping for a better experience. the 2:22 minuets tripping was very suspicious that maybe it was me somehow. But i cant imagine how.

My fist camp was at a park with 50 AMP and I had no issues at all. I said so in my original post. This was my first time on 30 Amp with this setup. I had the current limiter set at 30 - Then I tried 20 - then I tried 10. it didn't matter. Breaker still tripped. Has anyone ever heard of interference tripping breakers. and what interference would my system be creating.

Are you using PowerAssist? If not, then enabling PowerAssist in the Multiplus settings might help.

Yes I had assist enabled. And it was assisting when necessary. Since I had the current limiter set at 20 amps it assisted quite a bit. When the breaker was holding that is.

Okay so I camped again this last weekend and on 30 Amp again. Once again the breaker tripped about 5 different times. I had the current limit set at 23 Amps. This time it wasn't at the 2 minuets intervals. The first trip was at night right before bed. Again at 3 AM. And again later that day.

And it was pretty stable afterwards., I just cant figure out why its tripping. I wasn't pulling the 30 AMPS. Or even close. and most the time when it tripped the AC wasn't even on!!! and the batteries were almost fully charged. I was in Float charge at the time. and was using 304 watts from the Shore!! Could it have something to do with the Soft start on the AC? Anyone have any ideas.

This is such a pain to try and figure out!!

Oh and one thing is should mention. I have a power Watchdog in between the Shore and the Inverter input!!.

Not sure if this helps or not!!

Here is a Diagram of my Install!!

Was it the same campground? I briefly worked in a older campground where they put multiple sites not right next to each other on one 30a circuit because they didn't have the power to provide many 30a sites (so it could be a combination of you and someone else using the power) but still want to get the business and the higher $ so they will use the those sites for campers they didn't expect to be there frequently. (but deny it). I wasn't there long

I have the same problem you have when I’m connected to a 115 volt 15 amp circuit and also have the power watchdog. Have you resolved the problem yet?

I have been working with Victron to get it fixed. One of the solutions they recommended to try was to remove the Watchdog and run direct into the Victron. is yours a hardwire or Dogbone type.

Mine is hardwired so it will be a pain to bypass it!!!

Mine is hard wired also. Hope we can find a better solution than bypassing it.

Here’s what Victron said:

A standard 50A to 30A adaptor should work here. Since the unit works will with 120/240Vac I’m thinking this is something on the AC incoming side with the adaptor. Some options:

• Swap the adaptor with another one to rule that out.
• Bypass the existing input/wiring/adaptor and go directly from the 120Vac source to the MultiPlus to rule all of that out.
• Sounds like they have tried two different AC inputs, but it might worth trying a third AC source to rule that out.

Keep us posted on what you find out please.

Was there ever a solution to this? I have the same thing going on. Multi II and a watchdog EPO.

Works on 50amp great. On storage power it pops the outside breaker.

I had a somewhat similar issue. Using a 2000w inverter generator the Multiplus would draw so much power it would stall the generator. I ended up changing the battery charge current setting. This prevented the Multiplus from drawing too much current.

Well, well...so it's just not crazy me and my problem (or my son's same problem). Pretty much the exact same setup and tripping issues also w watchdog too. No problem on 50amp service. I have both my main breakers off in the trailer and batteries mostly full and Max AC charge set to 10amps on a household 20amp circuit. From what I gather here, it seems it can potentially be a ground issue involving the watchdog, maybe in combination w the 50/30 adapters...? Any other updates after the last August 24th post? Thx

It seems also like it's trying to recover by itself...but the of course the shore power circuit has tripped and there is no current there to recover.

In case you haven't found this other thread... https://community.victronenergy.com/questions/161020/multiplus-ii-2x120v-tripping-gfci.html