It is more efficient, quieter and more reliable than other EC Blower products on the market giving better performance and a lower whole life cost. But if for no other reason, then because switching to EC technology will reduce carbon emissions by at least 30%.

What’s so special about an EC fan?

EC fans are generally recognised as being the latest thing in energy efficient air movement technology, but what is an EC fan and what makes it so special?

Although ebm-papst, the market leader in EC technology, is a German company, EC has nothing to do with the European Community! In this case, EC stands for Electronically Commutated which basically means it is a fan with a brushless DC motor.

DC motors

Basic DC motors rely on carbon brushes and a commutation ring to switch the current direction, and therefore the magnetic field polarity, in a rotating armature. The interaction between this internal rotor and fixed permanent magnets induces its rotation. In an EC Axial Fan , the mechanical commutation has been replaced by electronic circuitry, which supplies the right amount of armature current in the right direction at precisely the right time for accurate motor control. Matters are further simplified by using a compact external rotor design with stationary windings. The permanent magnets are mounted inside the rotor with the fan impeller attached.