wnjj wrote:
Thanks for the pictures; that clears things up. 4-wire is what you have and what you want.
You have a total of 60A available (30A per leg) at 120V.
You must have one of these breakers:

Yes, that is the breaker. They advertise that their garages have a 30 amp RV plug. I was incorrect in saying the add said 120v. They just say 30 amp RV plug. I guess this will accommodate both 30 amp and 50 amp RVs assuming they have the correct adapter. All I will be powering is a dehumidifier during the summer months and the fridge a day or two before we take a trip.
Burch