EC Backward Curved Centrifugal

Product description:
EC centrifugal fans with backward-curved blades and covers a diameter range of models from φ133 to φ400, with maximum air volume up to 3,400 m3/h and maximum static pressure up to 600 Pa comprehensive ranges for every application. This external rotor fan series has a compact structure, operates reliably and is both energy saving and efficient. 100% speed control via analog or serial interface. Quiet operation with flow control and sophisticated EC motor commutation. Start-up made easy by perfectly coordinated components: Control system/motor/fanIt is designed with low noise, a long service life, and is easy to install. This series of axial fans has EC AC and DC available, Available input power sources for EC series are 115VAC, 230VAC and 380VAC; EC motors make the fans more efficient, it is easier to control the fan and flexibly meet customers’ control requirements. EC motors come with a variety of control solutions and protection functions - to achieve intelligent control, energy savings and environmental protection at the same time. For both the smart home and Industry.

Data Sheet
Detailed Parameters
Model No. & Category
Model No. RA-ECC250
Product Types Backward Curved Centrifugal Fan
Product Types EC Motor

Basic Parameters
Model: Voltage  (V) Current  (A) Power(W) Speed(RPM) Pressure (Pa) Air Flow(m³/h) Air Flow(CFM) Noise  (dB)
220M 220 0.36 40 2000 261 733.97 432 67
220H 220 0.46 67 2300 389 861.39 507 70

Product Information
Bearing Type Ball OR Sleeve
Impeller and Fram PBT PLASTIC
Approvals UL CE CCC
Speed Control PWM VSP Temperature Control Fix Speed with Pressure Intermittent
Protected Lock Auto-start Overload
Out Signal FG RD LD
Insulation Class B
Insulation Resistance 10MΩ/500V DC
Dielectric Strength 2Min/500V AC/5mA
Insulation Class F
Relative Humidity 20%-85%
Working Temperature -10℃/+60℃
Max Life 8000 hours