1. There is no such thing as a 220/240 volt configuration.
2. There is absolutely no difference between a 240 RV service and a 240 Home range/dryer service. Both are exactly the same.
3. I tired of people saying: "RV service is different because it's two 120 legs" . Guess what? Your house is two 120 volt legs. You dryer is two 120 legs. Your range is two 120 legs. They are all the same.
4. The NEC Changed 30 years ago to require 4 wire systems for Dryers and Ranges.
5. Any 240 volt system that has a need for 120 volts has 4 wires. 2 hots, 1 neutral, and 1 ground.
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2011 Keystone Sprinter 323BHS. Retired Master Electrician. All Motor Homes are RV's. All RV's are not Motor Homes.
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