I installed a 30A outlet on my house when I moved in, and already owned a 25' TT. I've since purchased a 35' Class A, which uses 50A. I'm currently using a 30A to 50A adapter.
I recently purchased a 50A breaker from my local Home Depot. Took an old breaker with me to make sure I got the right kind to fit. Bought the fat feed wire, and a 50A RV outlet too:
https://www.homedepot.com/p/GE-50-Amp-Temporary-RV-Power-Outlet-U054P/100193650I didn't bother with the outside breaker. Didn't see much need for it since I power down the RV electrical appliances before connecting or disconnecting.
I wish I would have put in the 50A to begin with. At least I can use the old wire in the wall to pull the newer (larger gauge) wire.
