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Low pressure axial fans (duct installation)

HRFD 630/4/4 TK

HRFD 630/4/4 TK

High efficiency axial fan 3-ph., 2 speed, star/delta - motor air flow direction "B"

Ref.-No. 00245

Features

High efficiency axial fan with cylindrical duct with flanges on both ends, directly driven. Cylindrical duct in galvanised sheet steel covering impeller with two flanges on both ends. Dimensions and flange fixing holes to DIN 24155. Terminal box on outer casing. Highly efficient, profiled impeller with 7 blades, dynamically balanced (Class G 6.3 to VDI 2060) and manufactured from impact resistant polymers. Suitable for -30°C to +60°C. Totally enclosed, 3-phase squirrel cage motor, 2-speed star/delta switching. Maintenance free, low-noise sealed for life ball bearings.

Technical Data

General Information
Ref.-No.:00245
Type:HRFD 630/4/4 TK
Flow rate free-blowing:17000 m³/h
Speed control:TRAFO / ELECTRIC / FREQUENCY
RPM:1170/1390 min-1
Number of poles:4 / 4
Voltage:400 / 400 V , 3 W , 50 ph
Rated current (FLC) uncontrolled:2.3/3.8 A
Nominal power:900/1570 W
Max. air flow temperature (uncontrolled):40 °C
IP protection category:55
Insulation class:F
PRODUCT_DETAILPAGE_wheel_diameter:630
Weight:35 kg
Wiring diagram no.:520
Acoustic data
Case breakout 65 dB(A) in 4 m