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Marathon Three Phase Motors

Since 1913, Marathon Motor's name has been recognized for engineering excellence, custom-designed products and an extensive product line of industrial quality motors.

In a three-phase system, three active conductors carry three alternating currents, of the same frequency, which reach their instantaneous peak values at different times. Taking one conductor as the reference, the other two currents are delayed in time by one-third and two-thirds of one cycle of the electrical current. This delay between phases has the effect of giving constant power transfer over each cycle of the current, and also makes it possible to produce a rotating magnetic field in an electric motor.

How do I read a Marathon Model Number off the Nameplate?

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