[KeithInUpstateNY]

Yes, the main breaker inside your camper should be a 30 amp breaker in most cases. The AC breaker inside the TT should be a 20 amp breaker assuming you have 13500 BTU rooftop AC. The remaining breakers are usually 15 amps.

It sounds from your last post like it is a 15 amp circuit that you are plugging the TT power cord into and it is a 15 amp breaker servicing the outlet that you are plugged into that is tripping. If that is the case, yes a 20 amp protected circuit should solve the problem IF the wiring for the circuit is appropriate for a 20 amp load, you have a 20 amp outlet to plug into, you have a 30 to 20 amp adapter for your power cord, and you have no other major draws in the TT as noted in previous posts. If any one of these components is rated for less than 20 amps you have the potential for that component to overheat and cause a fire. That's a lot of ifs, it may require the services of s professional electrician to get the setup you want.