as stated, the 110v fridge operation is in line with the 110v receptacles.
So, if you are running the fridge on 110v, this will use about 5 amps of the
15 amps allowed on the receptacles circuit. That leaves about 10 amps for
the receptacles, and if you want to use a hair dryer, electric grille, or electric
heater(on high), you will overload the circuit.
I taped a 16/3 extension cord to the camper 110v main feed wire. It plugs into
the auxilliary 110v receptacle at the campground power box at one end, and into a
110v power strip on the counter in the camper. Works great!