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Blauberg Centro 250

Inline centrifugal fan. Maximum air flow up to 1090 m³/h.
EAN codeEAN4058448014802
  • Description
  • Characteristics
  • Capacity diagram
  • Downloads
  • Dimensions
  • Additional characteristics
  • Designation key
  • Accessories

Supply and extract ventilation systems installed in various premises. Mounting in kitchens, bathrooms and other humid premises. Compatible with Ø 100 up to 315 mm round air ducts.

Smooth speed control with a built-in electronic speed controller (option FR1). Smooth speed control with an external thyristor controller or step speed control with an external auto transformer (both available upon separate order). Centro V2 series: two-speed control with the external CDP-2/5 or CDP-2/10 speed switch (available upon separate order).


High-quality durable plastic casing. Aerodynamically shaped casing. Airtight mounting box. Centro 150 is compatible with 150 and 160 mm air ducts.


max: high-powered motor. L: low-powered and low-noise motor. FR1: smooth speed controller adjustable from 0 to 100 % and power cable with mains plug.

G1 speed controller, temperature controller with external temperature sensor (cable length 4 m), power cable with mains plug.

GI1: speed controller, temperature controller with integrated temperature sensor and power cable with mains plug.The G and GI modifications enable automatic speed control depending on indoor temperature. The optimal ventilation solution for premises requiring permanent temperature control as greenhouses, orangeries, etc.V: built-in speed switch (for two-speed models). W1 power cable with mains plug.


Single-phase external rotor motor with a centrifugal impeller with backward curved blades. Equipped with ball bearings for longer service life. Integrated thermal protection with automatic restart. Dynamically balanced impeller. Some standard sizes have high-powered motors (Centro max). For ventilation of premises with high requirements to noise level low-noise modifications are available (Centro L). Centro V2 is equipped with the two-speed asynchronous motor with external rotor and centrifugal dynamically balanced impeller with backward curved blades.


Due to compact design the fan is the ideal solution for mounting in limited spaces. Any mounting position. Wall or ceiling mounting with fixing brackets supplied as a standard or with a wire frame Halter Centro (available upon separate order). Flexible air ducts are fixed on the fan spigots with clamps.

Parameter Centro 250
50 Hz
Centro 250
60 Hz
Measurement unit
Voltage 230 230 V
Phase 1 1 ˜
Frequency 50 60 Hz
Power 173 207 W
Current 0.76 0.9 A
RPM 2090 2120 min-1
Maximum air flow 300 303 l/s
Maximum air flow 1080 1090 m³/h
Sound pressure level at 3 m 49 50 dBА
Max. operating temperature -25...+55 -25...+50 °С
Motor IP rating IP44 IP44 -
Ingress protection rating IPX4 IPX4 -
EC motor no no -
Weight 4.30 4.30 kg
Casing material plastic plastic -
Outdoor mounting no no -
Sound-insulated casing no no -
Air duct for round air ducts for round air ducts -
Connection diameter 250 250 mm
Design centrifugal centrifugal -
Type Exhaust, Supply Exhaust, Supply -
SEC class B -
Mounting Inline Inline -
ErP 2018 2018 -
Capacity diagram
Capacity diagram
  • Selection method:
  • Air capacity:
  • Pressure:
Operating point
  • Air capacity: --
  • Pressure: ---
Documents archieve
Documents archieve
Select a document type
  • Catalogues
  • Technical documentation
  • Certificates
Centro - data sheet (pdf 1.22Mb)
Centro - user's manual (pdf 1.2Mb)
Centro - image (png 433.17Kb)
Centro - certificate GS (pdf 221.72Kb)
Centro - certificate LVD (pdf 149.53Kb)
Centro 250 - energy label (pdf 54.65Kb)
Centro 250 - specification (pdf 33.87Kb)

Model Overall dimensions [mm]
ØD ØD1 B L L1 L2 L3
Centro 250 250 340 354 265 30 30 40
Additional characteristics
Additional characteristics

To comply with ErP 2018 it is necessary to use a speed controller and local demand control typology (connect the sensor).

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] 90 61 78 85 83 85 81 77 65 70 80
LwA to outlet [dBA] 88 64 77 73 82 84 82 77 63 68 78
LwA to environment [dBA] 69 35 49 61 64 64 62 50 39 49 59
Designation key
Designation key
Series Duct diameter [mm] Motor modifications Options


100; 125; 150*; 200; 250; 315

max: high-powered motor
L: low-powered motor
V2: two-speed motor
FR1: smooth speed controller adjustable from 0 to 100 % and power cable with mains plug
G1: speed controller, temperature controller with external temperature sensor, power cable with mains plug
GI1: speed controller, temperature controller with integrated temperature sensor and power cable mains plug
V: built-in speed switch (for two-speed models)
W1: power cable with mains plug

* Centro 150 (V2) model is compatible with the air ducts both Ø 150 and 160 mm

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VK / VKA CDT E1.8 / CDP-2/5(10)
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