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Exhaust centrifugal fan. Maximum capacity - 390 m3/h.

  • Description
  • Characteristics
  • Capacity diagram
  • Downloads
  • Modifications
  • Dimensions
  • Additional diagrams
  • Legend
  • Exhaust ventilation systems for commercial, office and other public or industrial premises for extraction of air with temperatures up to 55°С. 
  • Direct air exhaust is provided.
  • Steel casing with polymeric coating ensures motor protection against direct humidity exposure in case of the unit outdoor mounting. 
  • The fan bottom has a bird and rodent proof guard.
  • Air is exhausted vertically down.
  • The centrifugal impeller with backward curved blades is powered by the single-phase motor with external rotor and overheating protection with automatic restart.
  • The motor is equipped with ball bearings for long service life designed for at least 40 000 hours. 
  • For precise features, safe operation and low noise, each turbine is dynamically balanced while assembly.
  • Motor protection rating IP 44.
  • Smooth or step speed control with a thyristor or autotransformer speed controller. 
  • Several fans may be connected to one speed controller provided that the total power and operating current do not exceed the rated speed controller parameters.
  • The fan is designed for outdoor surface wall mounting and connection to round duct of the respective diameter.
  • The fan is powered through the external terminals.
  • Electric connection and mounting shall be performed in compliance with the manual and wiring diagram provided in unit operation manual.
VENTS VCN fan catering ventilation example
VENTS VCN fan WC ventilation example
Parameter VCN 125
50 Hz
VCN 125 K
50 Hz
VCN 125
60 Hz
VCN 125 K
60 Hz
Measurement unit
Backdraft damper no yes no yes -
Voltage 230 230 230 230 V
Frequency 50 50 60 60 Hz
Sound pressure level at 3 m distance 54 54 54 54 dBА
Power consumption 75 75 98 98 W
Current 0.33 0.33 0.43 0.43 A
Maximum air capacity 485 450 500 465 m³/h
Max. transported air temperature 55 55 55 55 °С
RPM 2475 2475 2570 2570 min-1
Protection rating IP X4 IP X4 IP X4 IP X4 -
Duct diameter 125 125 125 125 mm
Weight 3.82 3.82 3.82 3.82 kg
Design centrifugal, protecting screen centrifugal, protecting screen centrifugal, protecting screen centrifugal, protecting screen -
Casing material polymer coated steel polymer coated steel polymer coated steel polymer coated steel -
Outdoor mounting yes yes yes yes -
SEC Class B B B B -
Duct for round air ducts for round air ducts for round air ducts for round air ducts -
Type exhaust exhaust exhaust exhaust -
Mounting outdoor mounting, wall mounting outdoor mounting, wall mounting outdoor mounting, wall mounting outdoor mounting, wall mounting -
Capacity diagram
Capacity diagram
  • Selection method:
  • Air flow:
  • Pressure:
Operating point
  • Air flow: --
  • Pressure: ---
Files archieve
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Certificate GS "VCN" (pdf 170.25Kb)
"VENTS VCN (EC)" user's manual 08-2020 (V06EN-04) (pdf 1.18Mb)
"VENTS VCN" product description 03-2021 (pdf 1.34Mb)
Download high quality image "VENTS VCN (ErP 2018)" (psd 3.89Mb)
Declaration of сonformity "VCN" (pdf 1.57Mb)
Certificate LVD "VCN" (pdf 151.59Kb)
Download image "VENTS VCN (ErP 2018)" for your website (png 264.49Kb)
Modification name
VCN 125
VCN 125 K
Modification name
VCN 125
VCN 125 K
Parameter Value Measurement unit
∅D 124 mm
B 260 mm
H 355 mm
L 138 mm
Additional diagrams
Additional diagrams
Sound-power level Octave-frequency band [Hz]
  Hz General 63 125 250 500 1000 2000 4000 8000
LwA to inlet dBA 58 48 54 59 56 57 52 42 29
LwA to environment dBA 59 41 41 52 55 58 54 46 35
Fan series Flange diameter, mm
VENTS VCN 100; 125; 150; 160; 200
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