DRV uses the transfer switch as the "whole house surge protection system". Why, I have no idea because it does not provide over or under voltage protection. Hence, no time delay. I did two factory tours and saw them installing TRC surge protection units and assumed that was what was installed in my unit. Not so!! When I realized I had no time delay, I looked to see why.
I have no on board generator so a transfer switch is pretty much useless. I replaced it with a Progressive Industries 50 Amp Surge Protection Unit and I really like it. I also installed their remote meter unit so thatI can monitor usage inside and outside the coach.
As a side note, my unit had cable slack on both ends. So, it was easy to put the unit closer to the sliding door.
Later, Vern
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