I installed a Progressive Industries EMS-HW30C Surge Protector in my Fleetwood Jamboree.
I too consider it inexpensive insurance and also a resale value increaser.
Here's the shore power cord storage compartment-
The outlet on the left is where you plug the shore cord into when not hooked up to external power. This allows the coach to be powered by the generator. Next to that are connections for cable tv & telphone - installed by the previous owner.
Here's the EMS-HW30C mostly installed with it's cover off. In order to orient the unit with the output on the left & the input on the right (the shore cord) I mounted it upside down-
Then I plugged it in to household power and got 120 volt, 60 hz & no error messages-
I installed the cover right-side up (it will install either way) so that I could read the error codes . I installed the remote display above the surge suppressor as I thought it would be best to have the display in the compartment so I could read it when hooking up power. I also secured the main cable with a steel/rubber adel clamp-
In the last image you can see that I have the cord stowed & plugged into the receptacle. Now the surge suppressor reads & protects the generator output.