ebm-papst DC fans Series 250 Catalog Page

max. 4,5 m

1

2

10

20

3

4

m³/h

2

1

3

30

40

50

0 0,4 0,8 1,2 1,6 2,0 2,4

0,15

0,10

0,05

Pa

CFM

[in H

2

O

]



HH

PP

3

/h

DC axial fans

Series 250 25 x 25 x 8 mm

Highlights:

– Compact fan with low power consumption.

General characteristics:

– Material: fibreglass-reinforced plastic. Impeller PA, housing PBT.
– Fully integrated electronic commutation.
– Protected against reverse polarity and locking.
– Connection via single strands AWG 28, TR 64. Bared and tin-plated.
– Air exhaust over struts. Direction of rotation counter-clockwise, seen on rotor.
– Mass: 5 g.

∆

(20 °C)

(60 °C)

10

10

Nominal data

Nominal voltage

Air flow

Air flow

Voltage range

Sound power level

Sound pressure level

Sintec sleeve bearings

Power input

Ball bearings

Nominal speed

Temperature range

ebm-papst Standard

Service life L

Service life L

Type m3/h CFM VDC VDC dB(A) Bel(A) / Watts RPM °C Hours Hours P. 110

255 M 2,1 1,2 5 4,5...5,5 5 < 3 0,2 6 000 -10...+70 45 000 / 14 000 45 000 1
255 N 3,2 1,9 5 4,5...5,5 16 < 3 0,4 9 600 -10...+70 40 000 / 12 000 40 000 2 /2
255 H 4,5 2,6 5 4,5...5,5 23 4,4 0,6 12 000 -10...+55 35 000 / 12 000* 30 000 3 /2

10

ebm-papst Standard

Life expectancy L

Curve

(40 °C) see P. 15

InformationDC axial fans

Specials

252 N 3,2 1,9 12 10...14 15 < 3 0,5 9 000 -10...+70 40 000 / 12 000 40 000 2 /2
252 H 4,5 2,6 12 10...14 23 4,4 0,7 12 000 -10...+55 35 000 / 12 000* 30 000 3

* at 55 °C

ACmaxx / i-maxx

AC axial fans DC centrifugal fans

Accessories

23

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