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Acoustically insulated (40 mm/88 kg/m³) centrifugal fan box
Application
BFA-R fans are used for ventilation in many applications where low noise levels have to be respected, such as offices, restaurants, technical rooms or other
Can be used for air supply or extraction
Indoor and outdoor installation possible without additional accessories
Composition
Casing procured from galvanised steel
Removable panel with mounted roof, fixed with screws for easy inspection of motor
Isolation: high performance wool (88 kg/m³) with fireclass A1 according to DIN EN13501-1
Fan with backwards curved blades, made of plastic
External rotor with maintenance-free ball bearing
Voltage: 230Vac 1 ph
Motor isolation class F - protection classes:
BFA-R 125 E2 K 01 - BFA-R 250 E2 K 01: motor protection class IP33, IP54 for the whole fan
BFA-R 355 E4 K 01 - BFA-R 400 E4 K 01: motor protection class IP44, IP54 for the whole fan
BFA-R 450 E4 K 01 - BFA-R 500 E4 K 01: motor protection class IP54, IP54 for the whole fan
Terminal box IP66 with cable glands
Thermische beveiliging:
BFA-R 125 E2 K 01, BFA-R 160 E2 K 01 and BFA-R 250 E2 K 01: Temperature operated switch mechanism with manual reboot, connected on the inside
BFA-R 200 E2 K 01, BFA-R 355 E4 K 01 and BFA-R 400 E4 K 01: Temperature operated switch mechanism with manual reboot, connected on the inside
BFA-R 450 E4 K 01 and BFA-R 500 E4 K 01: Temperature operated switch mechanism with manual reboot, to be connected externally by third party
Accessories
Auto transformer, type TSC(TK)-1
Electronic speed controller, type ESC(TK)
Flexible connection, type BMK
Text for tender
The centrifugal fan box shall be acoustically insulated with 40 mm rock wool fibrewith a density of minimum 88kg/m³. The closed motor shall be of the direct driven type, IP44, insulation class F, with thermal protection and voltage controllable with auto transformer
Cairox Type BFA-R
The centrifugal fan box shall be acoustically insulated with 40 mm rock wool fibrewith a density of minimum 88kg/m³. The closed motor shall be of the direct driven type, IP44, insulation class F, with thermal protection and voltage controllable with auto transformer
Cairox Type BFA-R
Order example
BFA 125 E2 K 01 + TSC-1-15
BFA = boxfan
R = mounted roof
125 = diameter
E = controlable via transformator speed controller
2 = number of poles
K 01 = version
TSC-1-15 = speed controller
Air performance data
Q [m³/h]
50 Pa
100 Pa
150 Pa
200 Pa
250 Pa
300 Pa
400 Pa
500 Pa
BFA-R 125 E2 K 01
307
283
243
211
170
130
-
-
BFA-R 160 E2 K 01
356
310
269
226
173
123
-
-
BFA-R 200 E2 K 01
675
614
550
485
422
361
229
-
BFA-R 250 E2 K 01
1044
991
918
830
765
709
585
385
BFA-R 355 E4 K 01
1982
1786
1640
1422
1253
1017
491
-
BFA-R 400 E4 K 01
2208
1977
1750
1532
1323
1046
462
-
BFA-R 450 E4 K 01
3403
3197
2978
2709
2413
2164
1443
800
BFA-R 500 E4 K 01
3639
3375
3126
2830
2552
2275
1497
481
Technical data
U [V]
P [W]
I [A]
SCT
SCE**
ŋt [%]
tm [°C]
tu [°C]
to [°C]
n [rpm]
Lwa [dB (A)]
Lwa 5
Lwa 6
Lwa 2
BFA-R 125 E2 K 01
230
50
0.3
TSC-1-15
ESC-15
24.6
70
70
-25
2386
55
68
54
BFA-R 160 E2 K 01
230
49
0.3
TSC-1-15
ESC-15
25.5
70
70
-25
2420
57
71
54
BFA-R 200 E2 K 01
230
100
0.5
TSC-1-15
ESC-15
29.1
80
80
-25
2480
64
76
59
BFA-R 250 E2 K 01
230
171
0.8
TSC-1-15
ESC-15
39
60
55
-25
2680
66
74
59
BFA-R 355 E4 K 01
230
237
1.3
TSC-1-15
ESC-15
38.5
45
45
-25
1368
66
75
61
BFA-R 400 E4 K 01
230
242
1.3
TSC-1-15
ESC-15
39.5
40
40
-25
1370
67
76
62
BFA-R 450 E4 K 01
230
451
2.6
TSCTK-1-40
ESCTK-5
41.3
65
65
-25
1374
73
82
67
BFA-R 500 E4 K 01
230
466
2.7
TSCTK-1-40
ESCTK-5
41.2
65
65
-25
1382
73
82
67
SCT = Transformer speed controller
SCE = Electronic speed controller
** Caution: an electronic controller can produce a magnetic noise
ŋt = Maximum total efficiency
Tm = Maximum air temperature
Tu = Maximum ambient temperature
To = Minimum operating temperature
Lwa 2 = Casing sound power level
Lwa 5 = Sound power level @inlet
Lwa 6 = Sound power level @outlet
The sound power levels are measured according to DIN 45635 part 2 & 38