HRFD 25/4/2 angular High Performance Axial Fan High Performance Fan Duct sleeve cylindrical, double flanges, driven directly. Cylindrical tube made of galvanized sheet steel, enclosing with impeller, both sides formed flange, hole pattern to DIN 24
55thWith external terminal box. Impeller with 7 blades made ​​of thermoplastic. High efficiency, low operating noise. Vibration-free operation with dynamic balancing to grade G 6.3 2 6 VDI and DIN ISO
94th Can be used in the range of -3 to +6 degrees C. Three-phase squirrel-cage motor with Dahlander windings (pole-changing), closed design, maintenance-free, sealed, low noise ball bearing with long life oil. Fan-data (default) Vol.str. at 2 Pa m3 / h Vol.str. Betr.pkt. m3 / h Max pressure increase
65 Pa. Druckerh. Betriebspkt Pa funding density
.2 Kg/m3 medium temperature 6 degrees angle degree C Operating time h speed
4/27
/ min aufgenomm.Leistung, 45 /,
kW Weight 8.5 kg 83 Sound Power dB (A) sound power spectrum LWa in dB (A) Freq = frequency in Hz corresponding Freq 25 5
2 4 8 8 74 76 LW
75 72 64 Voltage 4 volts power consumption, 2 /, 4 Amp AC / AC frequency 5 Hz D B insulation IP 55 Explosion protection class N Temperature Brand: Helios No.: 39 Type: HRFD 25/4/2 TK ______________________________________