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Keystone got back to me with the exactly where my surge protection is contained and which model I have. As stated in a earlier response, the surge protection is provided as part of the transfer switch. The model I have is a is a Progressive Dynamics PD52DCS. According to the Progressive Dynamics spec sheet for the transfer switch, it has open neutral, reverse polarity, under voltage, over voltage, and surge protection. I am not sure how good it really protects the electronics. I purchased a surge protector that plugs into the power pole just to give me added assurance and it gives me indication at the power source if there is a problem with the campground wiring when I hook up. Out of curiosity, is there a difference between Progressive Industries referenced earlier and Progressive Dynamics?
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