HRFD 355/4
Axial high-performance fan
Axial high-performance fan pipe sleeve
cylindrical, double flanges,
directly driven.
Cylindrical tube made of galvanized steel
sheet, enclosing with impeller, on both
sides molded flange hole pattern
according to DIN 24155th With external terminal
terminal box.
Impeller with 7 blades made of thermoplastic.
High efficiency, low operating
noise. Vibration-free operation through
Dynamic balancing to grade G 6.3
VDI 2060 and DIN ISO 1940. Can be used in
The range of -30 to +60 degrees C.
Three-phase squirrel-cage motor with
controllable voltage speed reduction,
thermal contacts, closed design,
maintenance-free, sealed, low noise
ball bearing with long life oil.
Fan-data (default)

Vol.str. 0 Pa at 3000 m3 / h
Vol.str. Betr.pkt. m3 / h
Max pressure 92 Pa increase
Druckerh. Betriebspkt Pa
Funding density 1.2 kg/m3
Medium temperature 40 degC
Angle of 0 degrees
Operating time h
Speed ​​1420 1/min
aufgenomm.Leistung 0.29 kW
Weight 14 kg
Sound power 75 dB (A)

LWa sound power spectrum in dB (A)
Associated freq = frequency in Hz

Freq 250 500 1000 2000 4000 8000
LW 65 72 69 67 61 52

Voltage 400 Volt
Current consumption 1.12 Amp
AC / AC D
Frequency 50 Hz
B insulation
Degree of protection IP 55
Explosion protection N
Temperature class

Make: Helios
Item No.: 226
Type: HRFD 355/4 TK
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