Displaying 30 amps is telling me that you most likely are not on a true 50 amp/240V
service (12000 watts or two 120V legs on opposite phases), but actually 50 amps of 120V giving you 6000 watts, Split accross both legs going into the coach.
Just one part of the puzzle.
Spencer & Tracie RVM#62
2013 RAM 3500DRW 4x4 Laramie, Cummins, 385HP,850FTLBS Aisin Trans
2014 DRV Elite Suite 41RESB4
Spare puller:2004 RAM3500DRW Cummins (DW's truck)