Blowing 50a shore power breakers

[justinm001]

I keep having issues with blowing breakers when at campgrounds when I set my Victron inverters to 50a. Someplaces I'm able to set to 45a and others have to be below 40a. I know NEC has a 80% rule but that's over 3 hours and usually it trips within 30 minutes. I believe Victron should limit it to 80% anyways.

Does this have anything to do with freezing temperatures? Maybe just faulty breakers?

 

[HighTechLab]

RV parks typically have weak breakers that have seen every kind of abuse that you can throw at them. I would not set AC current limit to anything over 40A.

 

[justinm001]

RV parks typically have weak breakers that have seen every kind of abuse that you can throw at them. I would not set AC current limit to anything over 40A.

Yeah totally agree. This campground I set to 45 and max was like 42a and it blew after 20 mins, switched it to 40 and 40mins later blew at 37, now set to 30 and holding steady. Yesterday's campground it blew at 45 but worked at 40.