ETAMASTER EC fans are designed for use with round channels. Since the diameter of the channel is hardly exceeded by the fan housing, the ETAMASTER EC fan can be used in confined spaces.
The specially designed 3-dimensionally shaped rotor and stator blades ensure that they are correctly inflowed, so that the pressure profile on the surface of the blade is achieved much more effectively and with fewer losses. The highly efficient stator will also ensure that lost energy due to rotation-loaded flow at the rotor output (dynamic pressure) is converted into usable energy (static pressure). This combination results in a duct fan with the highest efficiency of its kind, as a result of which the ETAMASTER EC fans will reduce the operational costs enormously.
Because the motor is built into the stator hub, outside the air flow, the ETAMASTER EC fans can be used for slightly polluted air.
The EC technology (Electronic Commutation) is an intelligent technology that, by using the internal electronic control, eliminates slip losses in the motor and ensures that the motor always runs at the optimum voltage. This EC technology also guarantees that the efficiency of the energy used is many times higher, so that energy consumption is also much lower compared to AC motors.
The ETAMASTER EC fan is equipped with an energy-efficient EC motor, saving up to 35% compared to an ETAMASTER with a normal AC motor.
The EC technology makes easy speed control possible, without loss of efficiency. This means that the energy consumption of the ETAMASTER EC will also be many times lower at partial load compared to the AC motor.
They are used for ventilation in offices, schools, parking garages, industrial applications.
The compact housing has a mounting base and integrated connection box
Air performance data
Pressure loss diagram
SCEC = EC controller
ŋt = Maximum total efficiency
tm = Maximum temperature of the air
tu = Maximum ambient temperature
to = Minimum operating temperature
Lwa 2 = Sound power level environment
Lwa 5 = Sound power inlet
Lwa 6 = Exhaust sound power
The sound power levels were measured in accordance with DIN 45635 part 2 & 38