Going to my son's and he has had a 50 amp plug put in for us. I am a little concerned about whether he has attached it to a 220 line or 110. The breaker has two 50 switches. Can't afford to fry my 5th wheel.
The best "surge" protectors, check the voltage BEFORE they connect your RV to the source. If it is under or over or has improper grounding, it will not connect.