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The fan casing made of galvanised steel is reliably protected against corrosion. The Canal-VENT-P-EC casing for all sizes has a service cover for direct access to the impeller and motor during installation or maintenance.
The fan impellers with backward curved blades are carefully static and dynamically balanced.
EC-MOTORS (electronically commutated) - DC motors with external rotor, with permanent magnets, equipped with control function, also called BLDC (brushless DC motors), i.e. brushless DC motors.
PRINCIPLE OF OPERATION OF THE EU-MOTOR. Permanent magnets embedded in the rotor create a force field. Control of the current direction in the stator winding allows to change the magnetic field vector. An inbuilt switching controller generates maximum torque on the shaft by applying voltage to the motor phases. The controller calculates and signals the polarity of the current to the stator winding, and provides continuous rotation...