I'm not aware of any of the general production brands of RVs that come with built-in EMSs or electrical management systems (they are so much more than surge protectors). In both of our fifth wheels, I have installed the Progressive Industries EMS-HW50C hard-wired EMS with remote read-out and switch. The EMS saved us thousands of dollars in appliance damage on at least two occasions in our previous RV. We haven't been in the new RV long enough yet - nor stayed in enough places with the pandemic shut-down - to run into those types of situations. It's there when we need it, though.
Rob
