PRODUCTS
EShop-number
Password
Welcome to CAIROX BELGIUM

KRFI-SN • Insulated roof fans with vertical discharge

Roof fan with vertical discharge and acoustic insulation (40 mm)

Application

  • These fans are used for ventilation of industrial kitchens and for air extraction up to 120°C

Composition

  • Casing made out of AIMg3 aluminium that is resistant to seawater with protection grille.
  • 40 mm insulation with fire class A1 according to DIN 4102-1
  • Turbine with backward curved impeller with blades that are made of galvanised steel plate up to type 280 and of aluminium for all other types, balanced G6.3 according to DIN ISO 1940.
  • Voltage: 400 Vac 3ph (type D)
  • Swivel motor compartment.
  • Insulation class F
  • Motor protection class: IP55
  • Security switch
  • Equipped with integrated drain pan and evacuation.

Accessories

  • Acoustically insulated roof socket, type RAC-I
  • Roof socket, type RC-I
  • Adapter plate, type RAP
  • Backdraught shutter, type RAS
  • Matching flange, type RIF
  • Flexible connector, type RFC
  • Transformer controller with 5 steps, type TSCTK-1
  • Frequency converter 3x400V in / 3x400V out, type FIS(-C)-13-B
  • Frequency converter 3x400V in / 3x400V out, type FIS(-C)-44-B

Order example

  • KRFI-SN 400 E4 30

KRFI-SN = Type of fan

400 = Size

E = Single phase motor

4 = Number of poles

30 = Version

Air performance data

 Q [m³/h]
50Pa100Pa150Pa200Pa250Pa300Pa400Pa500Pa600Pa700Pa
KRFI-SN 280 D2 302640257025002425237523002150198017751500
KRFI-SN 315 D4 302900282527502675260025002275200016751300
KRFI-SN 355 D4 304000387537253575345033253050267522501650
KRFI-SN 400 D4 303800362534753300305028002220---
KRFI-SN 450 D4 306680644062256050583056505200475041003325
KRFI-SN 500 D4 307650740071506900664064005900536046303580
KRFI-SN 560 D4 3011481110821064610202975493418557765667475610
KRFI-SN 630 D4 3015092148401457314284140131373113122123371139710486
KRFI-SN 710 D6 30185421829917866172681652815707140101225496845659

Selection curves

Selection curves

Technical data

 U [V]P [W]I [A]SCŋT [%]tm [°C]tu [°C]To [°C]n [rpm]Lwa [dB(A)]
Lwa 5Lwa 6Lwa 2
KRFI-SN 280 D2 303x4006271.13FIS-4420E-0.75-B46.212050-2029208687-
KRFI-SN 315 D4 303x4002021.04FIS-4420E-0.75-B36.612050-2023608383-
KRFI-SN 355 D4 303x4003121.25FIS-4420E-0.75-B46.612050-2020608182-
KRFI-SN 400 D4 303x4004921FIS-4420E-0.75-B48.112050-2014808078-
KRFI-SN 450 D4 303x4009012.3FIS-4420E-1.5-B57.212050-2016408484-
KRFI-SN 500 D4 303x40013422.7FIS-4420E-1.5-B55.212050-2014858485-
KRFI-SN 560 D4 303x40024204.7FIS-4420E-2.2-B58.212050-2514408889-
KRFI-SN 630 D4 303x40041158.5FIS-4420E-4.0-B54.912040-2514559594-
KRFI-SN 710 D6 303x40027686.9FIS-4420E-4.0-B59.4512050-259808687-

  • SC = Speed controller
  • 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

 A [mm]B [mm]C [mm]D [mm]E [mm]F [mm][kg]
KRFI-SN 280 D265165351228633046445.9
KRFI-SN 315 D465165551228633045148.7
KRFI-SN 355 D4804-56543845062566.9
KRFI-SN 400 D4804-56543845062562.8
KRFI-SN 450 D4984-737438535683103.4
KRFI-SN 500 D4984-73743853568392
KRFI-SN 560 D410751113969605750928152
KRFI-SN 630 D410751113969605750928163
KRFI-SN 710 D61525-10036058401083270
HELPCopyrightSales conditionsCookie policyAirvance Group

Requesting information. Please wait a moment...