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KBF-N D T • Frequention regulation simple suction centrifugal boxfans for hoods

Frequention regulation simple suction centrifugal boxfans with motor outside of the airflow

Application

  • Used for extraction of industrial hoods and industrial exhaust systems up untail 17540 m³/h

Composition

  • Double walled galavanised casing with removable panels and lever included for:

      • Simple inspection of the engine
      • Change of discharge direction (left or up), standard version : right
  • 30mm isolation with fireclass A1 according to DIN 4102-1
  • Round and square intake, square outlet
  • Condensation and grease draining
  • Voltage : 3ph 400Vac (Type D - frequention regulation engine)
  • Engine outside airflow (type T) – Engineside standard opened (to be equipped with engine protectionplate MB KBF or variant)
  • Turbine with backwards curved blades
  • Isolation class F
  • Protecting class engine: IP54

Accessories

  • Panel with round connection for KBF-N, type USM

  • Roof tile for KBF-N, type RD KBF
  • Rain hood with grill for KBF-N, type WSH KBF
  • Engine protection plate for KBF-N, type MB KBF
  • Base frame for KBF-N, type GR KBF
  • Round/square transition pieces, type RV
  • Fitting clamp, type BMK
  • Frequention regulator 3x400V, type FIS(-C)-44-B

Alternative products

  • Simple suction centrifugal boxfans for hoods, type KBF-N EC T

  • Plug&play compensation- and pulsiongroups for kitchen application, type EVENTYS 5

Order example

  • KBF-N 225 D2 T30 + FIS-44

Explination:

KBF-N = Type of fan

D = Type motor (frequency controlled)

2 = number of poles

T = motor outside of airflow

30 = version

FIS-44 = frequency controller

Air performance data

 Q [m³/h]
100 Pa200 Pa300 Pa400 Pa500 Pa600 Pa700 Pa800 Pa900 Pa1000 Pa1100 Pa1200 Pa
KBF-N 225 D2 T401889175516391529139412341077858----
KBF-N 250 D2 T40250223622223207319181792166314591179730--
KBF-N 280 D2 T4026882525235922072061189516691341664---
KBF-N 315 D2 T4039703801363134643289310829162707246621481615553
KBF-N 315 D4 T403081285426272369207017121223-----
KBF-N 355 D4 T404291393836113292294025131748-----
KBF-N 400 D4 T404304387133422684941-------
KBF-N 450 D4 T406713626057115083470641583008-----
KBF-N 500 D4 T4076517115659160665424466335121053----
KBF-N 560 D4 T4012642120851141610737100229114807168914648775--
KBF-N 630 D4 T401710916460156051463513740129531204510971996187887220933
KBF-N 710 D6 T401936618438168431493113002102462450-----
KBF-N 800 D6 T402188420372193401837517329161541444611709----

Selection curves

Selection Curves

Technical data

 U [V]P [W]I [A]SCFŋt [%]Tm [°C]Tu [°C]To [°C]n [rpm]Lwa [dB(A)]
Lwa 5Lwa 6Lwa 2
KBF-N 225 D2 T403x4004400.9FIS-4420E-0.75-B40.212060-203520858875
KBF-N 250 D2 T403x4006921.2FIS-4420E-0.75-B44.412060-203490888975
KBF-N 280 D2 T403x4006861.3FIS-4420E-0.75-B44.812060-202920889177
KBF-N 315 D2 T403x40012082.5FIS-4420E-1.5-B49.512060-202950909379
KBF-N 315 D4 T403x4002211.1FIS-4420E-0.75-B44.112060-202360838670
KBF-N 355 D4 T403x4003381.4FIS-4420E-0.75-B53.212060-202060868980
KBF-N 400 D4 T403x4005641.1FIS-4420E-0.75-B50.912060-201470808270
KBF-N 450 D4 T403x4009672.5FIS-4420E-1.5-B53.712060-201630879077
KBF-N 500 D4 T403x40014402.9FIS-4420E-1.5-B52.212060-201485909081
KBF-N 560 D4 T403x40014705FIS-4420E-2.2-B56.612060-201470919379
KBF-N 630 D4 T403x40043258.8FIS-4420E-5.5-B56.612060-201480939884
KBF-N 710 D6 T403x40027617FIS-4420E-4.0-B6612060-20990879076
KBF-N 800 D6 T403x40047729.9FIS-4420E-5.5-B58.112060-20990879076

  • SCF = Frequency converter
  • ŋt = Maximum total return
  • Tm = Maximum airtemperature
  • Tu = Maximum casing temperature
  • To = Minimum working 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

 A [mm]B [mm]C [mm]D [mm]E [mm][kg]
KBF-N 225 D2 T40500417386552Ø250 - (6x) M635
KBF-N 250 D2 T40500417386552Ø250 - (6x) M635
KBF-N 280 D2 T40500417386552Ø280 - (6x) M636
KBF-N 315 D2 T40500417386552Ø315 - (6x) M641
KBF-N 315 D4 T40500417386552Ø315 - (6x) M640
KBF-N 355 D4 T40700617586752Ø355 - (6x) M663
KBF-N 400 D4 T40700617586752Ø395 - (8x) M865
KBF-N 450 D4 T40700617586752Ø450 - (8x) M873
KBF-N 500 D4 T40700617586752Ø500 - (8x) M875
KBF-N 560 D4 T40900817786952Ø560 - (12x) M8127
KBF-N 630 D4 T40900817786952Ø620 - (12x) M8140
KBF-N 710 D6 T401200111710861252Ø690 - (12x) M8235
KBF-N 800 D6 T401200111710861252Ø770 - (16x) M8235
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