Thanks Dennis. I had pin and sleeve devices in mind too.
The only problem is, these have to fit either in or on the decorative base of a light pole. And of course, the client wants something small and simple and inexpensive.
I did find some Pass & Seymour twist lock receptacles that have weather protective boots. They aren't 60A, but they are 50A. That may have to suffice.
I never thought of looking for marine versions. They have some recepacles with premolded cords attached that I'd like to use if they aren't too expensive.
The only problem is, these have to fit either in or on the decorative base of a light pole. And of course, the client wants something small and simple and inexpensive.