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Blauberg Box 80x50 4D


Supply and exhaust ventilation systems installed in various premises.
Maximum air flow up to 7800 m³/h.
EAN codeEAN
  • Description
  • Characteristics
  • Capacity diagram
  • Downloads
  • Designation key
  • Dimensions
  • Additional characteristics
  • Accessories
Description
Description
USE

Supply and exhaust ventilation systems installed in various premises. Compatible with 400x200 up to 1000x500 mm rectangular air ducts.

MOTOR

Two- or four-pole asynchronous motor with external rotor and centrifugal impeller with backward curved blades. Single-phase (E) or three-phase (D) motor modifications. Equipped with ball bearings for longer service life. Dynamically balanced impeller. Overheating protection by 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 contacter, overload relay or respective terminals of the autotransformer or thyristor speed controller.

SPEED CONTROL

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

  DESIGN

Atmospheric resistant galvanized steel casing. The fan is rated for continuous operation. Fitted with standard 20 mm connecting flanges for connection to rectangular air ducts. Access cover on the casing for inspection and maintenance operations. The fan is equipped with a built-in terminal box with a leaded outside sealed electrical lead-in for connection to power mains.

MOUNTING

The fan is designed for mounting inside rectangular air ducts and can be installed in any position. The fan flanges are connected to the air ducts through the bolts inserted into the flange holes. The fan is suitable for mounting into round duct at intake flange with a round reducer (available upon separate order). If vibration-absorbing flexible connectors are used to connect the fan to the air ducts provide their fixation to mounting structures with supports or brackets. While mounting provide enough space for accessing the cover for service operations.

Characteristics
Characteristics
Parameter Box 80x50 4D Measurement unit
Voltage 400 V
Phase 3 ˜
Frequency 50 Hz
Power 1508 W
Current 2.71 A
RPM 1440 min-1
Maximum air flow 7800 m³/h
Sound pressure level at 3 m 58 dBА
Motor IP rating IP44 -
Transported air temperature -30...+60 °С
Ingress protection rating IPX4 -
Casing material galvanized steel -
Air duct for rectangular air ducts -
Design centrifugal -
Type Exhaust, Supply -
Weight 54.0 kg
Mounting Inline -
ErP 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
Name
Box (rectangular) - data sheet (pdf 1.27Mb)
Box - image (png 699.03Kb)
Box - user's manual (pdf 3.6Mb)
Designation key
Designation key
Series Flange size (width x height) [cm] Motor
Number of poles Phase
Box 40x20; 50x25; 50x30; 60x30; 60x35; 70x40; 80x50; 100x50 2; 4; 6 E: single-phase
D: three-phase
Dimensions
Dimensions

Model Overall dimensions [mm]
B B1 H H1 H2 L
Box 80x50 4D 800 840 500 540 540 903
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] 90 63 83 79 82 85 82 78 74 70 80
LwA to outlet [dBA] 99 64 87 90 94 94 90 83 77 78 88
LwA to environment [dBA] 79 61 75 72 71 70 66 58 52 58 68
Accessories
Accessories
Silencers Filter boxes Electric heaters Water heaters Air dampers Gravity dampers Flexible antivibration connectors Speed controllers
                
SD KFBK / KFBT EKH  WKH

SL

VG EVA CDTE 1.8