Despite it being a 6000 watt genset, it appears that 30A (3600 watts) is the max you are going to get out of it. The 240V/30A output does you no good, so 120v/30A = 3600 watts is what you get. Or you can get 2x 120v/20A. Is that enough for your RV?
2004 American Tradition; 2014 Buick LaCRosse
Homebase in the Ocala Nat'l Forest near Ocala, FL