For 30 Amp Service (that works on 50A post as well), consider:
Good =
http://www.progressiveindustries.net/ssp_30.htmBetter =
http://www.progressiveindustries.net/ems_pt30c.htmBEST =
http://www.progressiveindustries.net/ems_hw30c.htmIf it were my RV and I plan to keep it for 5+ years, I'd seriously consider the
BEST. If purchase cost is distributed over 5+ years, it costs very little each year. And yes, this "hardwire" product does have a bypass feature. Bypass if needed.
In addition to above "main line" Surge Protection to stop RV entry, also buy Outlet area surge protection units as well. Outlet units help level surges caused within the RV. Especially on Coffee Pot, Microwave, Fridge and Television outlets. The low cost units I use is Monster LCD TV units -
- click here - Hope this helps.