KRFI-SN • Roof exhaust units

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

• 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.
• External rotor motor with speed control and overheat protection to be cabled by third parties (up to and including KRFI-SN 250 E2 30)
• Voltage: 230 Vac, 1 ph and 400 Vac 3 ph. (type D)
• Swivel motor compartment.
• Insulation class F
• Motor protection class:
• KRFI-SN 225 E2 30 - KRFI-SN 280 E2 30: IP54
• KRFI-SN 280 D2 30 - KRFI-SN 710 D6 30: IP55
• Security switch
• Equipped with integrated drain pan and evacuation.

• 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

• KRFI-SN 400 E4 30

KRFI-SN = Type of fan

400 = Size

E = 1x230V

4 = Number of poles

30 = Version