If you search the forum and read on the Progressive Industries web site, you'll find a lot of information on this. (BTW - they're not just surge protectors. They are EMSs or electrical management systems that do SO much more.) Typically, the EMS is installed between the shore power inlet on the side of the trailer and the main power panel - usually behind the basement wall.
Also, welcome to the family! Now you can create a signature block with your RV and tow vehicle information (see mine below). That way you won't have to repeat that information whenever you post or ask a question. You can create a signature by going to:
Forum Actions (on menu bar) -> Edit Profile -> Edit Signature (under My Settings on the left)
Happy camping!
Rob
