more than
triple the amperage:
most folks assume that 50a service is 20a more than 30a, but it is actually more than
TRIPLE the amount of a 30a service... here's why:
50a service is a DoublePole 50a Breaker with 50a to TWO sides, which equals 100amps.
Your main breaker box in your coach will have two different 50a breakers, which provides 50amps to each 'side' of your coach...
One 'side' might be the front A/C unit, the Microwave, the Furnace, and some receptacles...
The other 'side' might be the rear A/C unit, the Fridge, the lights, the TVs, other receptacles, etc.
50a service is actually 100amps of possible power.
(if needed, you can still 'dumb down' the 50a to 30a with an adapter, and to even 15/20a with another adapter, but you will be limited to those amperages throughout the coach, of course)