EC Motor Technology

EC motor technology is around 30% more efficient than AC motors due to the secondary magnetic field coming from permanent magnets rather than copper windings. An AC motor consumes additional energy solely to create a magnetic field by inducing a current in the rotor.

EC stands for Electronically Commutated, while DC motors rely on carbon brushes and a commutation ring to switch current direction and magnetic field polarity to induce rotation. In an EC motor the mechanical commutation has been replaced by electronic circuitry, this supplies armature current in the right direction at the right time to induce rotation and also allows accurate control of motor speed, increasing the potential to reduce energy consumption in fan applications.

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