240 is single phase from one side of the hot incoming service to the other. It is also single phase to neutral, but 120 volts. When looked at from the 120 volt point of view, there are 2 branches that are out of phase to each other. When loading the distribution breaker panel, every other 120 breaker from top to bottom is on the opposite branch. When a 240 load is connected, the double breaker attaches to both branches automatically. Best practices splits the intended heavier 120 circuit breakers so they are on opposite branches. Keeping the applied load balanced to reduce the load on the neutral, and share the load through the mains. Jim
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Today's Featured Article - Tractor Hydraulics - The Basics - by Curtis Von Fange. Hydraulics was one of the greatest inventions for helping man compound the work he can do. It’s amazing how a little floor jack can lift tons and tons of weight with just the flick of a handle. What’s even more amazing is that all the principals of hydraulic theory can be wrapped up in such a small package. This same package applies to any hydraulic system from the largest bulldozer to the oldest and smallest tractor. This short series will take a look at the basic layout of a simple hydraul
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