AC axial fan
W4E250-CH02-70
sickled blades (S series)
with full round nozzle
ebm-papst Mulfingen GmbH & Co. KG
Bachmühle 2 · D-74673 Mulfingen
Phone +49 7938 81-0
Fax +49 7938 81-110
info1@de.ebmpapst.com
www.ebmpapst.com
Limited partnership · Headquarters Mulfingen
County court Stuttgart · HRA 590344
General partner Elektrobau Mulfingen GmbH · Headquarters Mulfingen
County court Stuttgart · HRB 590142
Nominal data
Type
W4E250-CH02-70
Motor
M4E068-BF
Phase
1~
1~
1~
1~
1~
Nominal voltage
VAC
230
230
230
230
230
Frequency
Hz
50
50
60
60
60
Type of data definition
fa
fa
fa
fa
fa
Valid for approval / standard
CE
CE
UL 2111
CE
CE
Speed
min-1
1400
1350
1640
1640
1570
Power input
W
42
45
48
44
50
Current draw
A
0.20
0.22
0.22
0.20
0.23
Motor capacitor
µF
1.5
1.5
1.5
1.5
1.5
Capacitor voltage
VDB
400
400
400
400
400
Max. back pressure
Pa
20
35
27
27
50
Max. ambient temperature
°C
40
40
60
60
60
Starting current
A
0.33
0.33
0.34
0.33
0.33
ml = max. load · me = max. efficiency · fa = running at free air · cs = customer specs · cu = customer unit
Subject to alterations
Item no. 10655-5-9980 · Revision 68158 · Release 2010-11-11 · Page 1 / 5
ebm-papst Mulfingen GmbH & Co. KG · Bachmühle 2 · D-74673 Mulfingen · Phone +49 (0) 7938 81-0 · Fax +49 (0) 7938 81-110 · info1@de.ebmpapst.com · www.ebmpapst.com
AC axial fan
W4E250-CH02-70
sickled blades (S series)
with full round nozzle
Technical features
Mass
2.79 kg
Size
250 mm
Surface of rotor
Coated in black
Material of blades
Sheet steel, coated in black
Material of wall ring
Sheet steel, pre-galvanised and coated in black plastic
Material of guard grille
Steel, phosphated and coated in black plastic
Number of blades
7
Direction of air flow
"V"
Direction of rotation
Counter-clockwise, seen on rotor
Type of protection
IP 44; Depending on installation and position as per EN 60034-5
Insulation class
"B"
Humidity class
F5
Max. permissible ambient motor
temp. (transp./ storage)
+ 80 °C
Min. permissible ambient motor
temp. (transp./storage)
- 40 °C
Mounting position
Shaft horizontal or rotor on bottom; rotor on top on request
Condensate discharge holes
Rotor-side
Operation mode
S1
Motor bearing
Ball bearing
Touch current acc. IEC 60990
(measuring network Fig. 4, TN
system)
< 0.75 mA
Motor protection
Thermal overload protector (TOP) wired internally
Cable exit
Variable
Protection class
I (if protective earth is connected by customer)
Product conforming to standard
EN 60335-1
Approval
UL 2111; CSA C22.2 Nr.77
Item no. 10655-5-9980 · Revision 68158 · Release 2010-11-11 · Page 2 / 5
ebm-papst Mulfingen GmbH & Co. KG · Bachmühle 2 · D-74673 Mulfingen · Phone +49 (0) 7938 81-0 · Fax +49 (0) 7938 81-110 · info1@de.ebmpapst.com · www.ebmpapst.com
AC axial fan
W4E250-CH02-70
sickled blades (S series)
with full round nozzle
Product drawing
1
Connection line PVC, 4x brass lead tips crimped
2
Direction of air flow "V"
Connection screen
U1
blue
PE
green/yellow
Z
brown
U2
black
Item no. 10655-5-9980 · Revision 68158 · Release 2010-11-11 · Page 3 / 5
ebm-papst Mulfingen GmbH & Co. KG · Bachmühle 2 · D-74673 Mulfingen · Phone +49 (0) 7938 81-0 · Fax +49 (0) 7938 81-110 · info1@de.ebmpapst.com · www.ebmpapst.com
AC axial fan
W4E250-CH02-70
sickled blades (S series)
with full round nozzle
Charts: Air flow 50 Hz
Druck p f s[Pa]für Rho=1,2kg/m^3
100
200
qv[cfm]
400
300
500
600
700
90
85
80
75
70
65
60
pf s[Pa]
55
50
45
40
4
35
3
30
25
20
2
15
10
0
]
[Pa
pf s
5
1
0
100
200
300
400
500
600
700
qv[m^3/h]
800
900
1.000
1.100
1.200
0,38
0,37
0,36
0,35
0,34
0,33
0,32
0,31
0,3
0,29
0,28
0,27
0,26
0,25
0,24
0,23
0,22
0,21
0,2
0,19
0,18
0,17
0,16
0,15
0,14
0,13
0,12
0,11
0,1
0,09
0,08
0,07
0,06
0,05
0,04
0,03
0,02
0,01
0
1.300
Measurement: LU-60036
p fs_E[IN H2O]
95
0
Air performance measured as per ISO 5801
Installation category A. For detailed
information on the measuring set-up, please
contact ebm-papst. Suction-side noise
levels: LwA measured as per ISO 13347 /
LpA measured with 1m distance to fan axis.
The values given are valid under the
measuring conditions mentioned above and
may vary according to the actual installation
situation. With any deviation from the
standard set-up, the specific values have to
be checked and reviewed with the unit
installed.
Measured values
U
f
n
Pe
I
qv
pfs
V
Hz
min-1
W
A
m3/h
Pa
1
230
50
1400
42
0.19
1015
0
2
230
50
1385
43
0.20
900
15
3
230
50
1370
44
0.20
750
30
4
230
50
1350
45
0.22
640
35
U = Supply voltage · f = Frequency · n = Speed · Pe = Power input · I = Current draw · qv = Air flow · pfs = Pressure increase
Item no. 10655-5-9980 · Revision 68158 · Release 2010-11-11 · Page 4 / 5
ebm-papst Mulfingen GmbH & Co. KG · Bachmühle 2 · D-74673 Mulfingen · Phone +49 (0) 7938 81-0 · Fax +49 (0) 7938 81-110 · info1@de.ebmpapst.com · www.ebmpapst.com
AC axial fan
W4E250-CH02-70
sickled blades (S series)
with full round nozzle
Charts: Air flow 60 Hz
Druck p f s[Pa]für Rho=1,2kg/m^3
100
200
qv[cfm]
400
300
500
600
700
800
0,52
125
0,5
120
0,48
115
0,46
110
0,44
105
0,42
100
0,4
95
0,38
90
0,36
85
0,34
80
0,32
75
0,3
70
0,28
65
0,26
60
0,24
55
Air performance measured as per ISO 5801
Installation category A. For detailed
information on the measuring set-up, please
contact ebm-papst. Suction-side noise
levels: LwA measured as per ISO 13347 /
LpA measured with 1m distance to fan axis.
The values given are valid under the
measuring conditions mentioned above and
may vary according to the actual installation
situation. With any deviation from the
standard set-up, the specific values have to
be checked and reviewed with the unit
installed.
0,22
4
50
0,2
45
0,18
3
40
0,16
35
0,14
30
0,12
25
0,1
2
20
0,08
15
0,06
10
0,04
0,02
]
[Pa
pf s
5
0
Measurement: LU-60037
p fs_E[IN H2O]
pf s[Pa]
130
0
1
0
100
200
300
400
500
600
700
800
qv[m^3/h]
900
1.000
1.100
1.200
1.300
0
1.400
Measured values
U
f
n
Pe
I
qv
pfs
V
Hz
min-1
W
A
m3/h
Pa
1
230
60
1630
45
0.20
1200
0
2
230
60
1625
47
0.21
1045
20
3
230
60
1570
49
0.21
860
40
4
230
60
1570
50
0.23
700
50
U = Supply voltage · f = Frequency · n = Speed · Pe = Power input · I = Current draw · qv = Air flow · pfs = Pressure increase
Item no. 10655-5-9980 · Revision 68158 · Release 2010-11-11 · Page 5 / 5
ebm-papst Mulfingen GmbH & Co. KG · Bachmühle 2 · D-74673 Mulfingen · Phone +49 (0) 7938 81-0 · Fax +49 (0) 7938 81-110 · info1@de.ebmpapst.com · www.ebmpapst.com