Centrifugal backward curved impeller
CRT Series


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Single inlet direct-drive centrifugal fans, manufactured from anti-corrosion steel sheet with polyester paint, centrifugal backward curved impeller and dynamically balanced, three phase motor, IP55, Class F.

2 or 4 pole depending on version, IE 2 high efficiency.
Supply voltage:
Three phase 230/400V-50Hz, up to 3 kW.
400V-50Hz for more power.

Additional information
Standard orientation: LG270.
Designed to continuously circulate air up to 120ºC.

On request
Manufactured from different materials.
RD versions.
Versions with no stand (MB – Motor Flange).
60 Hz versions.
6 pole motors.
2-speed motors.
High-temperature versions (up to 250ºC. Versions R, with cooling impeller).
Inspection door, draining, weather seal on scroll and shaft access.


ATEX Versions
Explosion proof versions in accordance with ATEX Directive, for 3 phase models.
For ambient working temperatures from -20ºC to +40ºC.
-ATEX Flameproof - Gas
II 2G Exd IIC T4
II 2G Exd IIB T5
-ATEX Increased safety - Gas
II 2G Exe II T3
-ATEX Non-sparking motor -Gas
-ATEX - Dust
II 3D Ex tD 125ºC or 135ºC

To select CRT ATEX refer to performance curves, or Easyvent.
Note electrical data may vary for ATEX motors.


  • CRTbdp506

    Inspection door
    On request for models from 251 to 562.
    In standard for models 631 and bigger.

  • CRTbdp487

    Scroll position
    Can be modify on construction site for models up to 562. Supplied from factory at the choosen positionning with no possibilty to modify for models 631 and bigger.

  • CRTbdp481


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