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Blauberg Tower-V 355 4E

Roof centrifugal fan. Maximum air flow up to 2976 m³/h.
EAN codeEAN4058448017773
  • Description
  • Characteristics
  • Downloads
  • Dimensions
  • Additional characteristics
  • Designation key
  • Accessories

Extract ventilation systems installed in various premises.Roof mounting.For any types of roofs or vertical ventilation shafts.

Smooth speed control with an external thyristor controller or step speed control with an external auto transformer (both available upon separate order).


Steel casing with a special polymer atmospheric resistant coating.Vertical air exhaust.The fan is equipped with a terminal block for connection to power mains.The fan is rated for continuous operation.The upper cover is equipped with two eye bolts for easy fan lifting on the roof with hoisting mechanism.A connecting plate with an intake opening is designed to facilitate mounting to the roof surface.

Roof mounting directly above a ventilation shaft or air duct.The fan is connected to the air duct with the intake flange that is fixed to the fan base.The fan base has holes for fixing bolts that attach the fan to a stable level surface or a roof frame.Roof frame and intake flange available on separate order.Power is supplied through an external terminal box.


Two-, four- or six-pole asynchronous motor with external rotor and centrifugal impeller with backward curved blades.Single-phase (E) or three-phase (D) motor modifications.Dynamically balanced impeller.Equipped with ball bearings for longer service life.Overheating protection with built-in thermal switches with automatic restart or with leaded outside terminals for connection to external protecting controls.The thermal switch terminal leads are designed for connection to respective circuit of the overload relay or respective terminals of the autotransformer or thyristor speed controller.

Parameter Tower-V 355 4Е (50 Hz) Tower-V 355 4Е (60 Hz) Measurement unit
Voltage 230 230 V
Phase 1 1 ˜
Frequency 50 60 Hz
Current 0.96 1.33 A
Power 219 304 W
RPM 1420 1580 min-1
Maximum air flow 689 827 l/s
Maximum air flow 2480 2976 m³/h
Sound pressure level at 3 m 51 52 dBА
Max. operating temperature -25…+50 -25…+50 °С
Motor IP rating IP54 IP54 -
Ingress protection rating IPX4 IPX4 -
EC motor no no -
Casing material polymer-coated steel polymer-coated steel -
Outdoor mounting yes yes -
Sound-insulated casing no no -
Air duct for round air ducts for round air ducts -
Design centrifugal centrifugal -
Type Exhaust Exhaust -
Weight 26 26 kg
Mounting for roof for roof -
ErP 2018 - -
Documents archieve
Documents archieve
Select a document type
  • Catalogues
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Tower-V - data sheet (pdf 914.13Kb)
Tower-V - user's manual (pdf 4.42Mb)
Tower-V - image (png 551.11Kb)

Type Dimensions [mm]
∅D H L L1
Tower-V 355 4Е 438 300 738 598
Additional characteristics
Additional characteristics

Sound power level, A-weighted Total Octave frequency bands [Hz] LpA 3 m LpA 1 m
63 125 250 500 1000 2000 4000 8000
LwA to inlet [dBA] 69 42 43 50 62 64 64 62 53 49 59
LwA to environment [dBA] 72 36 43 56 66 67 67 60 44 51 61
Designation key
Designation key
Series Impeller standard size Motor Casing material
Number of poles Phase
Tower-V 190; 220; 225; 250; 280; 310; 355; 400; 450; 500; 560; 630; 710 2; 4; 6 E: single-phase
D: three-phase
_: steel with polymeric coating
A: aluminum
Flexible connectors for roof fans Counterflanges Mounting frames Silencers Backdraft air dampers
Air dampers
Speed controllers


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