False. It depends if Tiffin used the same transfer switch that it uses on larger units. That unit has some surge protection but it is limited. What you really want to protect your coach is what is known as an EMS unit. EMS protects you from over/under voltage, mis-wired pedestals, and surges. Progressive Industries would be the units I would recommend.
Roger & Mary
2017 Winnebago Navion 24V (Sold)
2014 Tiffin Phaeton 36GH (Sold)