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VENTS Boost 400 EC

Inline fan. Maximum air flow - 5700 m3/h.

  • Description
  • Characteristics
  • Downloads
  • Dimensions
  • Overall dimensions of brackets
  • Additional technical data
  • Designation key
  • Inline fans for supply and extract ventilation of various commercial and industrial premises requiring powerful air flow.
  • The fans are compatible with Ø 150, 200, 250, 315, 355 and 400 mm air ducts.
  • The casing is made of polymer (for models 315, 355 and 400, the casing is additionally reinforced with a metal housing).
  • Due to the conically-shaped polymer impeller with specially profiled blades the air stream circular velocity increases, which results in higher air flow and pressure as compared to characteristics of standard axial fans.
  • The specially designed diffuser, impeller and airflow rectifier at the fan outlet provide smooth air flow distribution and enable the best combination of high air flow, increased pressure and low noise.
  • The fan casing is equipped with an airtight terminal box for connection to power mains.
  • The units are equipped with highly efficient electronically commutated DC motors. These state-of-the-art motors are the most advanced solution in energy efficiency today. 
  • EC motors are characterised with high performance and optimum control across the entire speed range.
  • In addition to that, the efficiency of the electronically commutated motor reaches very impressive levels of up to 90 %.
  • The fan is controlled using a 0-10 V control signal. 
  • When the control signal value changes, the EC fan changes its rotation speed and provides air flow required for the ventilation system.
  • Several fans can be integrated into a single computer-driven control system. Custom designed software provides high accuracy control of the fans integrated into a network. The computer display shows all the system parameters and the operation mode can be set individually for each fan in the network.
  • The fans can be mounted at any place and at any angle within the ductwork system.
  • Several fans can be installed in one system in parallel to attain higher air flow or in series to increase operating pressure in the system.
  • The fan casing is equipped with fixing brackets for floor, wall or ceiling mounting.
  • The fans can be mounted using KM-Boost brackets of the appropriate size (purchased separately, available for 315, 355 and 400 models).
Parameter Boost 400 EC
Measurement unit
Voltage 1~230 V
Frequency 50 Hz
Current 3.23 A
Sound pressure level at 3 m distance 60 dBА
Power 726 W
Maximum air capacity 1583 l/s
Maximum air capacity 5700 m³/h
RPM 2580 min-1
Max. transported air temperature -25...+55 °С
Protection rating IP X4 -
Motor protection rating IP44 -
Duct diameter 400 mm
Design mixed-flow -
Casing material polymer -
Duct for round air ducts -
Mounting Inline -
Files archieve
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  • Technical documentation
"VENTS BOOST 315/355/400 / VENTS BOOST 315/355/400 EC" user's manual 12-2021 (V208EN-06) (pdf 1.53Mb)
Download image "VENTS BOOST / VENTS BOOST EC (ErP 2018)" for your website (png 353.29Kb)
Download high quality image "VENTS BOOST / VENTS BOOST EC (ErP 2018)" (psd 4.22Mb)
"VENTS BOOST EC" product description 05-2023 (pdf 1.36Mb)
Download image "VENTS BOOST / VENTS BOOST 200 EC (ErP 2018)" for your website (png 359.49Kb)
Download high quality image "VENTS BOOST / VENTS BOOST 200 EC (ErP 2018)" (psd 4.13Mb)
"VENTS BOOST 150/160/200/250 / VENTS BOOST 150/160/200/250 EC" user's manual 06-2023 (V208-1EN-03) (pdf 1.28Mb)
VENTS Boost 400 EC
Parameter Value Measurement unit
A 388 mm
∅D 395 mm
ØD1 441 mm
H 500 mm
Overall dimensions of brackets
Overall dimensions of brackets

Model Dimensions [mm]
A A1 H H1 B
KM-Boost 400 EC 563 624 235 228 180
Additional technical data
Additional technical data
Sound-power level, A -filter Octave-frequency band [Hz] LpA, 3 m dBA LpA, 1 m dBA
  Hz Gen. 63 125 250 500 1000 2000 4000 8000
LwA to inlet dBA 87 70 77 78 81 81 79 74 67 66 76
LwA to outlet dBA 88 62 76 78 83 84 80 75 66 68 78
LwA to environment dBA 80 59 66 69 74 77 72 67 58 60 70
Designation key
Designation key
Series Air duct diameter [mm] Motor Options
VENTS BOOST ЕС 150, 200, 250, 315, 355, 400 ЕС: electronically commutated synchronous motor
S: high-powered motor;
Un: speed controller with electronic thermostat and external temperature sensor fixed on 4 m cable;
К: mounting bracket;
R: power cable with a mains plug;
P: built-in smooth speed controller.
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