BESF250 box fan

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Technical data, BESF250-4-1EC

BESF250-4-1EC

MODEL    BESF250-4-1EC
Fan data
Max. overall efficiency 53,5 %
ECO measurement set-up (A-D)  D
Efficiency requirements  49, N(2015)
ECO efficiency at optimal operating point 66,9
Motor

Motor

EC motor with integral VSD
Optimal operating point:
Absorbed power
Airflow
Total pressure
Rpm

 
357 W
1390 m3/h
495 Pa
1433 rpm

Nominal rpm (N) 1420 rpm 
Electric supply (U)   1 x 230 V ~ 50 Hz
Overload protection     Integrated in motor control

Max absorbed current* (I)

8.5 A
Max. absorbed power (P1)**  1.32 kW
Motor output (P2)**  1.10 kW 
Other data
Weight 32 kg 

 

 

Conditions:

  • * I is the maximum absorbed current throughout the control range - or the full load current if this is larger
  • ** P1 is the maximum absorbed power from the mains supply, where P2 is the motor's nominal output.
  • Stated data for for t = 20°C
  • Density = 1.2 /m3
  • Values are based on the use of a transition piece equivalent to OGSR
  • Gas temperature: min. -12°C, max. +60° C
  • Ambient temperature: Max. +40°C
  • Pressure ratio: < 1,11
  • other points in acc. with EC327/2011 - see product instructions
Technical data, BESF250-4-3

BESF250-4-3

MODEL    BESF250-4-3 OGSR
Fan data  
Max. overall efficiency 42,9 % 
ECO measurement set-up (A-D)
Efficiency requirements   49 N2015) 
ECO efficiency at optimal operating point 50,7 

Motor
 
Motor Three-phase motor designed for 1400 rpm or for an external frequency converter
Optimal operating point:
Absorbed power
Airflow
Total pressure
Rpm

585 W
1600 m3/h
564 Pa
1476 rpm 
 Nominal rpm 1400
Electric supply (U) 3x230D/400Y 
Overload protection     Must be overload-protected in accordance with applicable regulations 

Max absorbed current* (I)

5.0/2.9A 
Max. absorbed power (P1)** 1.47 kW
Motor output (P2)** 1.10 kW

Supply
 
Supply (power cable) No supply 
Supply (control cable)  
Length  

Other data
 
Weight 48 kg 

 

Conditions:

  • * I is the maximum absorbed current throughout the control range - or the full load current if this is larger
  • ** P1 is the maximum absorbed power from the mains supply, where P2 is the motor's nominal output.
  • Stated data for for t = 20°C
  • Density = 1.2 /m3
  • Values are based on the use of a transition piece equivalent to OGSR
  • Gas temperature: min. -12°C, max. +60° C
  • Ambient temperature: Max. +40°C
  • Pressure ratio: < 1,11
  • other points in acc. with EC327/2011 - see product instructions
Capacity diagrams

BESF250

 

BESF250-4-1EC

 

BESF250-4-1EC

 

BESF250-4-3

 

BESF250-4-3

 

Sound data

BESF250

 

 


Kw[dB]
K[dB(A)]
I-IV 63 125 250 500 1 k 2 k 4 k 8 k KWA KpA
Lw1 I 7 6 -1 -8 -5 -8 -10 -12
II 14 9 2 -7 -6 -11 -13 -17
III 11 7 1 -6 -5 -10 -12 -15
IV 16 10 3 -5 -8 -12 -14 -22
Lw2 I 6 7 2 -2 -1 -4 -9 -13 3
II 14 9 3 -4 -2 -8 -12 -17 2
III 7 7 2 -2 -2 -8 -11 -16 2
IV 18 10 2 -2 -5 -9 -13 -22 1
Lw3 I -17 -15 -22 -28 -21 -34 -35 -42 -20 -34
II -12 -12 -18 -24 -18 -27 -31 -37 -16 -30
III -13 -17 -13 -23 -30 -32 -35 -41 -19 -33
IV -8 -14 -13 -18 -24 -24 -28 -31 -15 -29
Dimensional drawing

BESF250

 

BESF250 målskitse

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