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BFA • Fan casing - 40 mm insulation

Acoustically insulated (40 mm/88 kg/m³) centrifugal fan box

Application

  • BFA fans are used for ventilation in many applications where low noise levels have to be respected, such as offices, restaurants, hotels or others.

Composition

  • Casing procured from galvanised steel
  • Removable panel with clips for easy inspection of the motor
  • Isolation: high performance wool (88 kg/m³) with fireclass A1 according to DIN EN13501-1
  • Fan with backwards curved blades
  • Fan procured from galvanized steel, except 1BFA 125 E2 20 and BFA 160 E2 20 with steel layer and plastic blades
  • External rotor with maintenance-free ball bearing
  • Voltage: 230Vac 1 ph
  • Isolationclass F - protection classes:
    • BFA 125 E2 20 - BFA 200 E2 11: engine protection class IP33, IPX4 for the whole fan
    • BFA 355 E4 20 - BFA 400 E4 20: engine protection classIP44, IPX4 for the whole fan
    • BFA 450 E4 20 - BFA 500 E4 20: engine protection class IP54, IPX4 for the whole fan
  • Connection boxIP44 with turnbuckle
  • Thermische beveiliging:
    • BFA 125 E2 20 - BFA 160 E2 20: Temperature operated switch mechanism with manual reboot, connected on the inside
    • BFA 200 E2 11 - BFA 400 E4 20: Temperature operated switch mechanism with manual reboot, connected on the inside
    • BFA 450 E4 20 - BFA 500 E4 20:Temperature operated switch mechanism with manual reboot, to be connected externally by third party

Accessories

  • Roof, type RD-BFA
  • Auto transformer, type TSC-1
  • Electronic speed controller, type ESC
  • Flexible connection, type BMK

Text for tender

Kopiëren
  • 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

Selection curves

Selection curves

Air performance data

 

Q [m³/h]

50 Pa100 Pa150 Pa200 Pa250 Pa300 Pa400 Pa500 Pa
BFA 125 E2 20307283243211170130--
BFA 160 E2 20356310269226173123--

BFA 200 E2 11

675614550485422361229-

BFA 355 E4 20

198217861640142212531017491-

BFA 400 E4 20

220819771750153213231046462-

BFA 450 E4 20

3403319729782709241321641443800

BFA 500 E4 20

3639337531262830255222751497481

Technical data

 U [V]P [W]I [A]SCTSCE**ŋt [%]tm [°C]tu [°C]to [°C]n [rpm]Lwa [dB (A)]
Lwa 5Lwa 6Lwa 2
BFA 125 E2 20230500.3TSC-1-15ESC-1524.67070-252386556854
BFA 160 E2 20230490.3TSC-1-15ESC-1525.57070-252420577154
BFA 200 E2 112301000.5TSC-1-15ESC-1529.18080-252480647659
BFA 355 E4 202302371.3TSC-1-15ESC-1538.54545-251368667561
BFA 400 E4 202302421.3TSC-1-15ESC-1539.54040-251370677662
BFA 450 E4 202304512.6TSC-1-40ESC-3041.36565-251374738267
BFA 500 E4 202304662.7TSC-1-40ESC-3041.26565-251382738267

  • 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

Dimensions

 Ø N [mm]
A [mm]B [mm]C [mm]D [mm]E [mm]F [mm]G [mm][kg]
BFA 125 E2 2012437838023211913642638411.6
BFA 160 E2 2015937838023213713342638411.8
BFA 200 E2 1119946048028716516850846617.7
BFA 355 E4 2035465068049223427369865641.8
BFA 400 E4 2039965068049225626369865641.0
BFA 450 E4 2044980078054727628384780567.5
BFA 500 E4 2049980078058730229384780569.5
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