Originally Posted by RSchleder
As long as you understand you'll have 40% less amperage capacity, all will be well.
RSchleder, in actuality a 50 amp service is a 50 amp 120/240 volt split phase service. What this means is you have TWO legs of 120 volt power, EACH at 50 amps, for a total of 100 amps. So you have a lot bigger difference than just 50 to 30. This is often times confusing.
If you will notice in the pic below, a 50 amp service has a double pole breaker, that controls TWO 50 amp legs....while a 30 amp service has a single pole breaker controlling ONE 30 amp leg.
A 30 amp service at 120 volts = 3600 watts
A 50 amp service at 120 volts = 12000 watts ( 2 legs at 6000 watts each)
Better reading below than my probable more confusing explanation:
Electrical Tutorial - Chapter 3 - 30 Amp versus 50 Amp
RV Electrical Systems