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Explosion-proof low pressure axial fans (wall installation)

HQD 250/4 EX

HQD 250/4 EX

High efficiency axial fan, 3-ph., explosion-proof II 2G Ex h IIB + H2 T3 Gb, with guard

Ref.-No. 01144

Features

Square plate high efficiency axial fan with inlet cone, directly driven, explosion proof according to ATEX. Square mounting plate with drawn bell mouth inlet in galvanised sheet-steel. High efficient, profiled impeller with 7 blades, dynamically balanced to DIN ISO 1940 and VDI 2060 class 6.3, manufactured from impact resistant anti static polymers. Suitable for -30°C to +40°C. Electrical resistance of less than 1 Ohm. Totally enclosed, maintenance free 3-phase squirrel cage motor, low noise sealed for life ball bearings, not controllable. Explosion proof execution according to ATEX.

Technical Data

General Information
Ref.-No.:01144
Type:HQD 250/4 EX
Flow rate free-blowing:950 m³/h
RPM:1355 min-1
Number of poles:4
Voltage:400 V , 3 W , 50 ph
Rated current (FLC) uncontrolled:0.37 A
Nominal power:120 W
Max. air flow temperature (uncontrolled):40 °C
Explosion proof:
IP protection category:55
Insulation class:F
PRODUCT_DETAILPAGE_wheel_diameter:250
Weight:9.8 kg
Wiring diagram no.:470
Acoustic data
Case breakout 44 dB(A) in 4 m