Application industry
EC fans
EC fans that are environmentally friendly and energy-saving and operate quietly.
Digitalized control and management
World-leading German craftsmanship
The advantages of the high-efficiency EC fan
  • Integrate the high-efficiency fan, motor, and inverter in one to be specially used for the cooling tower EC fan.
  • The high overall unit efficiency (the overall unit consists of a fan, motor, and inverter) is in line with EU Energy Efficiency (ErP 2015).
  • Low vibration and noise; structurally compact, integration of rotating machinery in one.
  • Integrated protection function, phase failure and low voltage protection, motor and inverter over-temperature protection, equipment blocked rotor protection, etc.
  • Equipment is easy to use; plug-and-play; without belts; mechanical alignment not required.
  • Equipment is easy to maintain; monitoring of whole-machine status; peripheral integration with ease.
  • Digital and intelligent control, monitoring of equipment status (instant rotational speed, power consumption, temperature, etc.), ease-of-use smart functions.
Nominal data Size Nominal voltage
range
Frequency Speed Max.
power consumption
Max.
input current
Max.
input current
Max.
back pressure
Permissible
ambient
temperature
Weight Dimensions A Dimensions B Dimensions C
Type mm VAC Hz rpm W A Pa °C Kg mm mm mm
W3G 910-LV12-36 910 3~380-480 50/60 1,070 3,250 5.0 -25....+26 59 1,070 352 1,010
The advantage of continuous speed regulation: low power consumption.
Reduce energy consumption and increase the service life of equipment.
Compared to conventional on/off mode, speed control by load can significantly save energy.
On/off mode: Turn of half of the fans to reach 50% airflow.
Speed regulation mode: Reduce the speed of all the fans by half to reach 50% air flow, substantially decrease power consumption, and significantly increase the service life of equipment.
Pn~n3

Turn off half of the fans=50% air flow=50% power consumption

Regulate the speed of all the fans to 50%=50% air flow=12.5% power consumption.

Lower noise
Compared to conventional on/off modes, speed regulation by load can significantly reduce noises.
Lp [dB] = 50 x log (n1/n2)

Turn off half of the fans=50% air flow=noise reduction by 3dB(A).

Regulate the speed of all the fans to 50%=50% air flow=noise reduction by 15 dB(A).