AC axial fan
straight blades (A series)
with guard grille for full nozzle
S4S250-BA20-56
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 S4S250-BA20-56
Motor M4S068-CF
Phase 1~ 1~
Nominal voltage VAC 115 115
Frequency Hz 60 60
Type of data definition fa fa
Valid for approval / standard CE UL 2111
Speed min-1 1550 1550
Power input W 75 80
Current draw A 1.1 1.12
Min. ambient temperature °C -25 -25
Max. ambient temperature °C 40 40
ml = max. load · me = max. efficiency · fa = running at free air · cs = customer specs · cu = customer unit
Subject to alterations
Item no. 12222-5-9980 · Revision 76115 · Release 2012-03-06 · 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
straight blades (A series)
with guard grille for full nozzle
S4S250-BA20-56
Technical features
Mass 2 kg
Size 250 mm
Surface of rotor Coated in black
Material of impeller Sheet steel, coated in black
Material of guard grille Steel, coated in black plastic (RAL9005)
Number of blades 5
Direction of air flow "V"
Direction of rotation Counter-clockwise, seen on rotor
Type of protection IP 44; Depending on installation and position
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 Any
Condensate discharge holes None
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 Lateral
Protection class I (if protective earth is connected by customer)
Product conforming to standard EN 60335-1; CE
Approval CSA; UL
Item no. 12222-5-9980 · Revision 76115 · Release 2012-03-06 · 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
straight blades (A series)
with guard grille for full nozzle
S4S250-BA20-56
Product drawing
1 Direction of air flow "V"
2 Connection line PVC 3G AWG20, 3x brass lead tips crimped
3 Connection line Raychem AWG24, 3x brass lead tips crimped
Item no. 12222-5-9980 · Revision 76115 · Release 2012-03-06 · 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
straight blades (A series)
with guard grille for full nozzle
S4S250-BA20-56
Connection screen
1 Fan connection diagram
L Blue
N brown
PE green / yellow
TOP Thermal overload protector
2 Hall IC circuit
2.1 Hall IC
2.2 Red (+5V)
2.3 White (out)
2.4 Black (0V)
Item no. 12222-5-9980 · Revision 76115 · Release 2012-03-06 · 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
straight blades (A series)
with guard grille for full nozzle
S4S250-BA20-56
Charts: Air flow 60 Hz
Druck p f s[Pa]für Rho=1,2kg/m^3
qv [m³/h]
1.3001.2001.1001.0009008007006005004003002001000
qv [cfm]
750700650600550500450400350300250200150100500
p fs[Pa]
130
125
120
115
110
105
100
95
90
85
80
75
70
65
60
55
50
45
40
35
30
25
20
15
10
5
0
psf [IN H2O]
0,52
0,5
0,48
0,46
0,44
0,42
0,4
0,38
0,36
0,34
0,32
0,3
0,28
0,26
0,24
0,22
0,2
0,18
0,16
0,14
0,12
0,1
0,08
0,06
0,04
0,02
0
p fs[Pa]
1
2
3
4
Measurement: LU-55103
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
1
2
3
4
U
V
115
115
115
115
f
Hz
60
60
60
60
n
min-1
1600
1575
1560
1560
Pe
W
63
65
66
66
I
A
0.87
0.89
0.90
0.90
qv
m3/h
1030
945
840
720
pfs
Pa
0
15
30
40
U = Supply voltage · f = Frequency · n = Speed · Pe= Power input · I = Current draw · qv = Air flow · pfs = Pressure increase
Item no. 12222-5-9980 · Revision 76115 · Release 2012-03-06 · 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
