AXCBF-EX 250-6/28°-2

Cod produs: 33021

Stock range, standart series short delivery time

aerodynamic impeller

Die cast aluminium hub and blades

Casing, hot dip galvanized steel, to EN ISO 1641

Aluminium anti-spark ring

Spun flanges for high rigidity, to Eurovent standard

Single and three phase motors, IP55, insulation class F, in accordance with EN 60034, IEC 85.

Admissible ambient temperatures from -20°C to +60°C

With motor outside the airstream

The Systemair AXCBF-EX range of bifurcated medium pressure axial fans has been developed for applications with an atmosphere which would either require special motors or reduce the lifetime of a standard motor. The Ex(d) motors of AXCBF-EX are out of the airstream. Available in sizes from 250 up to 800 mm impeller diameter. The stock range offers a standard selection with maximum airflow for the installed motor power. The fans could be used for zones 1 or 2, field of application II, for gases of groups IIA, IIB and IIC and for temperature classes T1 to T4. The fans are classified to category 2G. The fans are certified under the no Sira 07ATEX6341X. The Ex d motors are equipped with PTC thermistors for optimum motor protection. The motor is speed controllable by frequency converter. AXCBF-EX bifurcated axial fan casings are heavy gauge, hot dip galvanized, with spun flanges for high rigidity. The extended leads on the motor, allows a flexible connection to an external terminal box (see accessories). Single or three phase B3 foot mounted motors, totally enclosed and fan cooled.

Technical parameters

Norminal data
Voltage (nominal) 415 V
Frequency 50 Hz
Phase(s) 3~
Input power 224 W
Input current 0.691 A
Impeller speed 2958 r.p.m.
Air flow max 1440 m³/h
Temperature of transported air max 60 °C
Protection/Classification
Enclosure class, motor IP55
Insulation class F
Explosion proof marking II 2G Ex h db eb IIC T4 Gb
Certificate Sira 07ATEX6341X
Controller and Sensors
Ambient and duct temperature -20 to 60 °C
Dimensions and weights
Duct dimension; Circular, inlet 250 mm
Duct dimension; Circular, outlet 250 mm
Weight 34.5 kg
Others
Duct connection type Circular
Motor type AC
Images Wiring - AXCBF-EX 250-6/28°-2 - Systemair
Motor cable classification without terminal box

Wire designation nr.

Connection designation

Extra note

1

U1

2

V1

3

W1

4

W2

5

U2

6

V2

7

12

PTC

8

13

PTC

Hz Tot 63 125 250 500 1k 2K 4K 8K

LwA inlet /outlet

dB(A)

82

54

64

72

77

77

74

70

63

Measuring point: qv = 0,3 m3/s, Ps = 196 Pa

Mid-frequency band, Hz

Images Dimensions - AXCBF-EX 250-6/28°-2 - Systemair

A

ø B

ø C

ø D

ø E

ø F

ø H

I

AXCBF-EX 250

535

448

328

250

238

280

10

4 x 90°

• The fan casing from hot-dip galvanized steel in accordance with EN ISO 1461. Flanges press formed on inlet and outlet side of casing. Flanges and hole pattern in accordance with Eurovent standard.

• Adjustable impeller manufactured from die cast aluminium. Balanced statically and dynamically in accordance with DIN ISO 1940-1, to quality Q = 6,3. Air direction: over motor.

• Additional motor nameplate in metal at the outer fan casing.

• Single or three phase explosion proof IEC motor, ATEX certified, stock range in Ex d with motor cable cast to the

motor, single or dual speed. Insulation class F; protection class IP 55; design B3.

• AXCBF-EX: Bifurcated motor outside the air stream;

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