Originally Posted by MHammy
Newbie question here. I am trying to make reservations at a campground in Missouri. The only spaces with full services offer only 50 amp electric. I have a 27 fb International on order and we have 30 amp in the trailer. Is it safe to use the adapter that converts 50 amp to 30 amp?
Yes, it is safe to use a 50-to-30 dogbone adapter. In fact, I use mine regularly at State Parks that have side-by-side 50-amp and 30-amp connections, because the 30-amp sockets are usually worn so that the plug is a loose fit, which leads to tripped breakers. But the 50-amp socket on the park's pedestal usually doesn't see as much use, isn't as worn, and eliminates the problem.
If you're concerned about rain getting into the connection between your cord and the adapter, my solution is one of those wide postal rubber bands. Put it over the plug before hooking up (may have to double-wrap the rubber band to get it tight), then once the plug and the adapter are joined, maneuver the rubber band to cover the joint between them. Not quite as good as an O-ring seal, but it works well enough to keep water out of the dogbone's 30-amp socket.