50 Amp Voltage Booster with Surge Protection | Hughes Autoformers

50 Amp Voltage Booster with Surge Protection

Price:$859.00 $756.00

In-Stock - Orders placed by 12 PM PST, Ships Same Business Day!

Introducing the World’s Only “All-in-One” RV Power Solution.

The legendary, original, and patented RV voltage booster, now with the world’s most advanced surge protection.

The all new Hughes Autoformer 50 amp RV power boosting autoformer (RV220-50SP) has the same performance and reliability of the original RV220-50 but now has advanced surge protection. The unit constantly monitors incoming power to protect against spikes or surges. As an extra feature the surge / spike protection module is also replaceable. In the event of a massive spike, the surge unit will take the hit ensuring your booster and more importantly, your RV is not damaged.

The Hughes Autoformer is the only U.S patented Voltage boosting solution available today. All others are imitations.

The unit automatically starts boosting 10% if the voltage drops to 113 or below. It will boost 10% until the voltage gets to 90 volts which is the minimum amount of volts for the unit.

  • 50 Amp – 12,000 Watts capacity
  • Fully automatic 10% boost when needed
  • Complete LED Park Power Diagnostics
  • Boost indicator light
  • 4800 Joules of Advanced Surge Protection Built-in
  • Replaceable Surge Protection Module
  • Voltage Booster & Surge Protection all in one!
  • Comes with free cable lock to help prevent theft
  • Size: 12”H x 8 ½“ W x 5½” D
  • Cord length – 4 1/2 feet (approx. 54″) long
  • Heavy Duty 6/3 gauge copper wire
  • Weight: 35 Lbs.
  • Three-year limited warranty – keep out of heavy rain/water
  • Made in U.S.A.
  • Note – Not compatible park poles with GFCI outlets 
  • YES, it is compatible with adapter, “dog bone” cables

SPECIAL BONUS OFFER – If your surge module is ‘used up’ within the first 2 years of purchase, Hughes Autoformers will mail you one FREE replacement. (One free replacement offer only within the first 2 years of purchase. Proof of purchase required, proof of used up surge module also required)


Additional Information

Weight 32 lbs
Dimensions 13 × 11 × 15 in


Product Videos

Download User Instructions

3 reviews for 50 Amp Voltage Booster with Surge Protection

  1. 5 out of 5


    I am currently in an old RV park, the voltage ranges from 104v to 114v. The other RVs have only a Surge Protection that turns the electric off when the voltage gets too low, and turns back on when the voltage increases. When I installed the Hughes Autoformer the voltage increased to a range of 112v to 120v. With the internal surge protection I don’t need to purchase an additional product. I am very satisfied with the Hughes Autoformer.

  2. 5 out of 5


    I had to send my autoformer in for repair, the service tech was very interested in the reason. He did not try to blow me off. We talked for about twentu minutes to insure the problem would be addressed. My unit was repaired three days after they received it and I was informed of the problem. I have nothing but great things yo say about this company when so many are only after your money. Great product and I hope when I talk to other RV’s they try this product. I am a RV Tech , best insurance you’ll ever buy for surge protection and low power/Brown outs

  3. 5 out of 5


    I keep my Newmar RV in my garage. The power sometimes lights up all three lights. Without this Autoformer I would never know about the poor power supply. With Hughes I sleep well at night.

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