A few words of warning.. by the way, as I type this I"m in a 50 amp rig on a 30 amp site.
Some parks the electrical power is... Well... Not all that good (This one for example) I have many times seen voltmeters at the pedistal show low voltages (Like mid 80's) (I am not kidding) my RV can adjust for SOME of that.
But tonight I had my normal electronics on (Around 3-5 amps) a steamer (same amp range) one AC, the converter and fridge.. The water heater is OFF. and click went the breaker..... Inverter held till I got it reset.
I ran the generator before I brought up the Microwave.