Here are the top three most popular and well-rated autoformer brands that deliver a consistent and top-notch quality result. There are only a few of them, so picking the right one is essential.
- Hughes Autoformers – founded by an RV enthusiast in 1995. Hughes, the founder, also experienced himself the low voltage and even fluctuating supply that can be provided by RV campsites. He also had to deal with damaged electrical devices, so he created his autotransformer, which eventually also helped thousands of other RVers. The results of his highly reliable autoformers are results of his first-hand experiences.
- Southwire – this company has a wide array of electrical connections and devices used for transmission. They have various cords and connectors, including voltage regulators.
- InnoTechRV – their single autoformer, the Power Master VC-50, is worth checking. It is a reliable combo of an auto-transformer and a surge protector"
Note:
1. Multiple manufacturers define their product as "autoformers". Hughs uses the terms "autoformer" and "autotransformer" interchangeably for the same product, technically incorrect, or is it?. No manufacturer designates either term with a copywrite symbol that indicates a BRAND or copywrite name.
2. More germane to the issue is the lack of mention of Ground Fault Interrupters (GFI). All modern RV pedestals have GFI's and ganged GFI's are used somewhere on the 220VAC distribution. One contributor explained how modern circuit breakers work, GFI's work on the ground/neutral wires. I'll bet that there isn't a GFI on the park grounds.