For a MH
30 amps: 1 branch120 volts 30 amps. Total 30 amps
50 amp: 2 branches each 120 volts 50 amps. Total 100 amps
For residential homes a 30 amps circuit is (most of the times) 240 volts.
Never think you can connect to a 30 amp circuit, like a dryer, to a 30 amp MH. You will fry all of you appliances and electronics.
Your MH needs to be connected correctly.
On this site Iggy has great information on how to connect a 30 amp circuit for your MH. Just run a search.
I'll try to find some articles and post them.
2013 Georgetown XL 378
2008 Honda CR-V