
We used to use a portable Surge Guard to protect our coach from campground electrical issues, it served us very well. On one trip it suffered some plug damage to the female 50amp connector. Unfortunately that connector was part of a fully molded cable that terminated inside the “permanently” sealed case.
To fix it required complete disassemble of the unit to replace the damaged connector. Although I was successful in opening the “permanently” sealed case and replacing the damaged end, and fully re-weather proofing the unit, we knew it would have to be replaced, but we did get another year out of it!