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VAR high pressure fans

VARD 250/4/2 TK

VARD 250/4/2 TK

IN-LINE MIXED-FLOW FAN 250 MM 3 PH, POLE SWITCHING DAHLANDER

Ref.-No. 06773

Features

High pressure in-line mixed-flow fan, cylindrical duct with flanges on both ends, direct driven. Cylindrical pre-galvanised sheet-steel casing with a rolled flange at both ends Dimensions and flange fixing holes to DIN 24155, page 2. With guide vanes for improved performance. Mixed flow impeller with 8 spatially curved blades made from impact resistant polymers. Dynamically balanced to class G 6.3 VDI 20060 and DIN ISO 1940. Totally enclosed, 3-phase squirrel cage motor, 2-speed (pole switching with Dahlander windings). Maintenance free with low-noise sealed for life ball bearings.

Technical Data

General Information
Ref.-No.:06773
Type:VARD 250/4/2 TK
Flow rate free-blowing:2400 m³/h
Air noise level max. (LWA):84 dB(A)
Speed control:TRAFO / ELECTRIC
RPM:1425 / 2750 min-1
Number of poles:4 / 2
Voltage:400 / 400 V , 3 ph , 50 Hz
Rated current (FLC) uncontrolled:0.24 / 0.94 A
Nominal power:75 / 490W
Max. air flow temperature (uncontrolled):60 °C
IP protection category:54
Insulation class:B
PRODUCT_DETAILPAGE_wheel_diameter:250 mm
Weight:13 kg
Wiring diagram no.:472
Acoustic data
Sound in-duct 64 dB(A) in 4 m