Max.
70
m /h
3
AC axial fans
92 x 25 mm
– Material:
– Possible special versions:
Housing: Die-cast aluminum
(See page 12)
Impeller: Mineral-reinforced
- Moisture protection
PA plastic
Direction of air flow:
Exhaust over struts
Direction of rotation:
Counterclockwise,
looking towards rotor
Connection:
Via 2 flat plugs 2.8 x 0.5 mm
grounding lug for M4
Weight:
280 g
Note:
Please note our new ACmaxx series.
With identical mounting dimensions and voltages, this
series achieves greater energy efficiency.
See page 189.
Sound pressure level
Sintec sleeve bearings
Ball bearings
Power consumption
Sound power level
Temperature range
–
–
–
–
–
Nominal voltage
Series 3900
Service life L10
at 40 °C
Nominal speed
Frequency
at T max
Air flow
Air flow
Nominal data
Type
3950 L
3956 L
3950 M
3956 M
3950
3956
3900 L
3906 L
3900 M
3906 M
3900
3906
Subject to change
m
3
/h
31
31
45
45
59
59
39
39
53
53
70
70
cfm
18.2
18.2
26.5
26.5
34.7
34.7
23.0
23.0
31.2
31.2
41.2
41.2
VAC
230
230
230
230
230
230
115
115
115
115
115
115
Hz
50
50
50
50
50
50
60
60
60
60
60
60
dB(A)
24
24
29
29
35
35
27
27
34
34
40
40
Bel(A)
3.8
3.8
4.2
4.2
4.7
4.7
4.0
4.0
4.6
4.6
5.1
5.1
/
Watts
6.0
6.0
6.0
6.0
11.0
11.0
5.0
5.0
5.0
5.0
9.0
9.0
rpm
-1
1 550
1 550
2 150
2 150
2 650
2 650
1 850
1 850
2 600
2 600
3 150
3 150
°C
-10...+80
-40...+80
-10...+80
-40...+80
-20...+80
-40...+80
-10...+80
-40...+80
-10...+80
-40...+80
-20...+80
-40...+80
Hours
Hours
70 000 / 27 500
70 000 / 27 500
70 000 / 27 500
70 000 / 27 500
55 000 / 20 000
55 000 / 20 000
70 000 / 27 500
70 000 / 27 500
70 000 / 27 500
70 000 / 27 500
60 000 / 22 500
60 000 / 22 500
Air performance measured according to: ISO 5801.
Installation category A, without contact protection.
Noise: Total sound power level L
W
A ISO 103002
measured on a hemisphere with a radius of 2 m.
Sound pressure level LpA measured at 1 m distance
from fan axis.
The values given are applicable only under the specified
measuring conditions and may differ depending on the
installation conditions.
In the event of deviation from the standard configura-
tion, the parameters must be checked after installation!
For detailed information see
http://www.ebmpapst.com/general conditions
2016-01
208
Finger guards
from p. 242
Cables
P. 255
Curve
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√
√
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stm32/stm8
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