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Hughes Autoformers protect your RV from low-voltage damage while boosting weak campground power to usable levels. Unlike surge protectors that simply cut power when voltage drops, an Autoformer uses transformer technology to increase voltage by up to 10%—turning marginal 108-volt power into the 120 volts your air conditioner and appliances need. This added protection prevents compressor damage, motor overheating, and premature appliance failure caused by brownout conditions.

What to Know Before You Buy

  • Match the Autoformer to your service: 30-amp models for smaller RVs, 50-amp models for larger rigs with multiple ACs.
  • Hughes Autoformers include surge and spike protection, so you get comprehensive electrical defense in one unit.
  • Hardwired models install permanently; portable versions work great for those who want protection they can move between rigs.
  • The voltage boost feature is especially valuable at older campgrounds and fairgrounds where electrical infrastructure is often overloaded.

Not sure if you need an Autoformer or a standard surge protector? Contact us—we'll help you understand the difference and choose the right protection.

Free shipping on most orders $99+ (US lower 48). Expert support and 90-day returns.

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