Just the breaker to the A/C flips in the panel and shuts off all electric in rv
The AC should be on a dedicated breaker but it seems you have additional loads on that breaker.
A simple plug in digital voltmeter inside the rig would be a good step to determining the voltage. If the pedestal has both 20A and 30A plugs then most likely the 20A plug voltage will be the same as the 30A plug.
A 30A plug should run one AC and other loads like a coffee pot, but add refer, charger and maybe not.
First step: What is your voltage?
Second step: What does the AC nameplate show for amps?
