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Low pressure axial fans (wall installation)

HWD 250/4

HWD 250/4

High efficiency axial fan 3-ph., 400 V, 50 Hz, TK with safety guard, controllable

Ref.-No. 01016

Features

Circular plate high efficiency axial fan with inlet cone, directly driven. Circular mounting plate with drawn bell mouth inlet in galvanised sheet steel and finished with two coats of papyrus white paint. Motor with terminal box and motor side guard. Highly efficient, profiled blade impeller from polymers, aerodynamically optimised to the application, dynamically balanced. Suitable for -30 °C to +60 °C. Totally enclosed 3-phase squirrel cage motor with built-in thermal contacts, maintenance-free, speed controllable by voltage reduction, with low-noise sealed for life ball bearings.

Technical Data

General Information
Ref.-No.:01016
Type:HWD 250/4
Flow rate free-blowing:950 m³/h
Speed control:TRAFO / FREQUENCY
RPM:1390 min-1
Number of poles:4
Voltage:400 V , 3 W , 50 ph
Rated current (FLC) uncontrolled:0.15 A
Nominal power:55 W
Max. air flow temperature (controlled):40 °C
Max. air flow temperature (uncontrolled):60 °C
IP protection category:54
Insulation class:B
PRODUCT_DETAILPAGE_wheel_diameter:250
Weight:6.5 kg
Wiring diagram no.:469
Acoustic data
Case breakout 44 dB(A) in 4 m