Tec Tip From ErieTec: 2 Wire Versus 3 Wire Control

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ErieTec's Industrial Electrical Specialist Brian Davis is here to remove the confusion over a common question - what is the difference between 2 wire and 3 wire control?

If you need help with your application, call our expert team of Industrial Electrical Specialists.

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Can a 2 wire pump have only one one of the 120V leads switched and not affect pump operation? Other lead would always be hot.

benw