Surge Protector For 2012 Cougar 5th Wheel RV To Help With Power Dips At Crowded Campground

Updated 10/23/2025 | Published 09/23/2025

Question:

Does the HU84ZR actually boost voltage automatically, or do I have to switch it on? Our 2012 Cougar fifth wheel keeps tripping on low power in Texas. sometimes AC stops for awhile til power is good again.

asked by: Cheryl

Expert Reply:

Hey Cheryl, the # HU84ZR Power Center has an automatic voltage booster built in which kicks in whenever incoming park voltage drops below about 113 volts. You don’t have to flip a switch since it senses and adds roughly 10% to bring it back into the safe zone. That’s why so many folks report running their A/Cs in crowded campgrounds without brownouts.

You’ll also get the full suite of surge protection and app monitoring, so you’ll see in real time what’s happening. Have you noticed if it’s just your A/C that suffers, or are lights/appliances dimming too?

expert reply by: Andrew N

Mark

10/23/2025

Hey Cheryl and Andy. We mostly do full hookups on weekends and that’s when the AC hates life. I’ve been using a basic surge protector and a 30’ extension sometimes (pedestals are weirdly far at a few parks). If I go with the HU84ZR, will it still help if I’m using that long cord, or am I just asking for voltage drop no matter what?

Cheryl

10/23/2025

@Mark Hey Mark! Just saw you replied lol. Yes, the watchdog fixed it for us. Before, the AC would trip in the afternoon but now it handles the low-voltage dips and I could actually see the boost kick in on the app. We’re 30-amp, and I didn’t have to flip any switches. just plugged it in at the pedestal and then our RV to it.

Andrew N.

10/23/2025

@Cheryl That’s perfect feedback, Cheryl; thanks for confirming that real-world experience! And yes Mark, even with that 30’ cord, the # HU84ZR will still help stabilize voltage - just keep it as close to the pedestal as possible for best results.