I am sure glad this topic is still active,
Here is the deal, I have an older 5th we keep at a year around camp site at a lake it takes a 50 amp plug. For all kinds of reasonings wife and I bought a 21' Jayco TT to travel in and it has a 30 amp. Ok,,,I sure can see the advantage of a inside surge, and if it was just for the jayco this is the way I would go. But as of late, a couple of years now, every time we go to the 5th the LED clock is blinking its power has been shut of and restarted due to a power failer.
So this little voice keep saying you had better get a surge protector, but I ask myself for both !~!!! So if I bought one of these portable 50 amp models for the 5th year around, then when we traveled un plug the 5th 50 amp take along on the jayco. Plug one of these small 50 to 30 amp adapters into the male from the extension of the Jayco TT then into the lower 50 amp female portable then would I be ready to go for power to the 30 amp Jayco ??
Also, are these portable models to large not to be stuffed up into the inter part of these outside metal campground boxes ,and then shut the lid to lock at the bottom to hide. Outher wise I will have to disconect the 5th to store such, ever time we leave due to theft ?