AW 355 D4-2-EX Axial fan ATEX - Systemair

AW 355 D4-2-EX Axial fan ATEX

Art. no.: 5969

Certified according to ATEX

Speed-controllable

Integral thermal contact

Explosion proof

The AW - EX fans have speed controllable external rotor motors. The fans have a square plate for wall mounting and are painted in standard black. The casing and impeller is manufactured from sheet steel. To protect the motor from overheating, integral thermistors are fitted with external leads which must be connected to the U-EK230E motor protection relay.

The AW-Ex fan motor is approved according to ATEX. Useful for Zone 1 and 2, groups IIA, IIB and temperature class T1, T2, or T3 (AW 355 and AW 420 also T4). Ignition protection "e".

Accessories for Ex-fans only on request.

Technical parameters

Nominal data
Voltage (nominal) 400 V
Frequency 50 Hz
Phase(s) 3~
Input power 286 W
Input current 0.493 A
Impeller speed 1,341 rpm
Air flow max 720 L/s
Temperature of transported air max 40 °C
Max temperature of transported air, when speed controlled 40 °C
Sound data
Sound pressure level at 3m (20m² Sabin) 62 dB(A)
Protection/Classification
Enclosure class, motor IP44
Insulation class F
Explosion proof marking II 2G c Ex e IIB T4
Certificate ZELM 05ATEX0279X
Data according to ErP
ErP ready Not ErP relevant
Controller and Sensors
Ambient and duct temperature -20 to 40 °C
Dimensions and weights
Weight 9 kg
Others
Motor type AC

U1

brown

V1

blue

W1

black

U2

red

V2

grey

W2

orange

K

white

PE

green/yellow

Test-voltage on temperature sensor max. 2,5V.

A B C D E F G H I J

AW 355 EX

138

48

70

16

350.5

356

125

4x12

385

423

The box is made out of electroplated steel plate, powder- coated. Including protection guard. The installation is possible in each fitting position. The fan has an axial impeller with airfoils made out of electroplated, powder- coated steel plate. The actuation is carried out by an explosion- proofed, speed- controllable external rotor motor with completed barretter. A D/Y- capability of connection allows an double- rotation operation of the motor. For annealing the motor is situated inside the air flow. Impeller according to VDI 2060, quality class Q 6,3 and dynamically weigh heavy in two levels. Tested according to ATEX- Guideline 94-9-EG,conform to ATEX Directive 2014/34/EU. For the extraction of potentially explosive atmosphere of zone 1, category 2G and zone 2, category 3G. The fans are in zone 1, 2 and for the temperature levels T1, T2 and T3 applicable. The explosion group is "e" elevated safety Eexe II, T3. Appurtenances for the Ex- fan is available on enquiry.

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