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Replaced a one speed 230volt 1 phase electric motor with a two speed 230 volt 1 phase electric motor, now have extra wires which color wires do you use or cap??

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Look at the old motor and see what the rated rpm was. Next look at the new motor and see if it gives a speed for each wire. If it doesn't give the speed for each wire then look at the rated motor speed. That will be the Hi speed. Hook up the wire that matches the speed of the old motor and cap the other.

Posted on Jun 06, 2010

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