I believe your size tt is a 30 amp. Good news is that you don't have to pay extra for the 50amp that many bigger units have to pay for in some campgrounds
Rule of thumb that we have learned..... Look at the plug on the shore power cord. If three prongs, 30 amp. If 4 prongs, 50 amp. You can use EVERYTHING on 50 amp (100 amps of 120 VAC available). You are somewhat limited on what you can run on 30 amp (30 amps available).
Anyhow, with our (little?) tt, we do fine w/available 30amp