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Blauberg Tower-H 250 2E

Roof centrifugal fans. Maximum air flow up to 1450 m³/h.
EAN codeEAN4058448017506
  • Description
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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-H 250 2Е (50 Hz) Tower-H 250 2Е (60 Hz) Measurement unit
Voltage 230 230 V
Phase 1 1 ˜
Frequency 50 60 Hz
Current 0.81 0.90 A
Power 184 232 W
RPM 2480 2320 min-1
Maximum air flow 403 367 l/s
Maximum air flow 1450 1320 m³/h
Sound pressure level at a distance of 3 m 54 53 dBА
Max. operating temperature -25…+50 -25…+50 °С
EC motor no no -
Ingress protection rating IPX4 IPX4 -
Motor IP rating IP44 IP44 -
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 12.7 12.7 kg
Mounting for roof for roof -
ErP 2018 -
Documents archieve
Documents archieve
Tower-H - data sheet (pdf 839.6Kb)
Tower-H - user's manual (pdf 4.04Mb)
Tower-H - image (png 485.5Kb)

Type Dimensions [mm]
∅D H H1 L L1
Tower-H 250 2Е 285 237 244 451 450
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