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Can I Use 2 Surge Protectors On RV 30A At One Time For Extra Protection?  

Published 09/23/2025



Question:

I’ve got a 30 amp HU72VR now. Can I add the HU84ZR booster later and run them together for extra protection?

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Expert Reply:

Rick, you won’t need to double up. Both the 30A # HU72VR and the 30A # HU84ZR already have full surge protection, emergency shutoff, and monitoring built in. Running them in series could actually create more hassle and even issues perhaps.

If you mainly want voltage boosting (to keep A/Cs happy in hot campgrounds), then the # HU84ZR is the better fit. If you just want hardwired, permanent surge protection and monitoring, the # HU72VR is perfect. But you don’t need to run both at once - just pick the one that matches your style of camping.

Do you usually camp in hotter areas where voltage drop is an issue, or are you more concerned with other issues?

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Andrew N
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