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Cabinet
The cabinet is made of sheet steel, coated with black lacquer. Operating temperature -40 to +40 ˚C (depending on type up to +60 ˚C). The motor is in airflow.
Running wheel
The impeller is made of sheet steel, the shape is specially optimized for maximum flow and pressure with minimum noise. The impeller is pressed directly onto the motor.
Motor
The motor is asynchronous with resistive armature, external rotor and start-up capacitor. Class F insulation, IP44 protection. Lifetime grease-filled ball bearings.
Flow direction
Flow direction is from stator to impeller.
Clamps
The terminal block is located on the motor, for a wall mounted TREB fan the cable from the terminal block is routed through a rubber grommet in the wall of the fan housing.
Speed control
Speed control is carried out by electronic or transformer regulators by changing the voltage.
Noise
The noise emitted by the fan is measured at a distance of 1.5 m in the axis of the fan on the suction side.
Mounting
Fans are mounted in each position of the motor axis.
Instructions
The fans are suitable for short ducts with low pressure drop, or to wall and vent directly through the wall. The two-pole design is suitable for ducts with relatively higher pressure drop.
