
R4E310-AQ31-12
Nominal data
Type R4E310-AQ31-12
Motor M4E074-EI
AC centrifugal fan
backward-curved, single-intake
ebm-papst Mulfingen GmbH & Co. KG
Phase 1~ 1~
Nominal voltage VAC 230 230
Frequency Hz 60 60
Method of obtaining data fa fa
Valid for approval/standard CE UL
Speed (rpm) min-11700 1700
Power consumption W 225 240
Current draw A 1.13 1.06
Capacitor µF 5 5
Capacitor voltage VDB 450 450
Capacitor standard S0 (CE) UL
Min. back pressure Pa 0 0
Min. back pressure in. wg 0 0
Min. ambient temperature °C -25 -25
Max. ambient temperature °C 50 50
ml = Max. load · me = Max. efficiency · fa = Free air · cs = Customer specification · ce = Customer equipment
Subject to change
Item no. 13313-5-9980 · ENU · Change 96942 · Approved 2018-04-26 · Page 1 / 4
ebm-papst Mulfingen GmbH & Co. KG ·

R4E310-AQ31-12
AC centrifugal fan
backward-curved, single-intake
Technical description
Weight 4.5 kg
Size 310 mm
Motor size 74
Rotor surface Painted black
Impeller material Sheet aluminum
Number of blades 6
Direction of rotation Clockwise, viewed toward rotor
Degree of protection IP44; installation- and position-dependent as per EN 60034-5
Insulation class "F"
Moisture (F) / Environmental (H)
protection class
Max. permitted ambient temp.
for motor (transport/storage)
Min. permitted ambient temp. for
motor (transport/storage)
Installation position Shaft horizontal or rotor on bottom; rotor on top on request
Condensation drainage holes On rotor side
Mode S1
Motor bearing Ball bearing
Touch current according to IEC
60990 (measuring circuit Fig. 4,
TN system)
Motor protection Thermal overload protector (TOP) internally connected
With cable Variable
Protection class I (with customer connection of protective earth)
Conformity with standards EN 60335-1; CE
Approval CSA C22.2 No. 100; UL 1004-1
H1
+ 80 °C
- 40 °C
< 0.75 mA
Item no. 13313-5-9980 · ENU · Change 96942 · Approved 2018-04-26 · Page 2 / 4
ebm-papst Mulfingen GmbH & Co. KG ·

R4E310-AQ31-12
Product drawing
AC centrifugal fan
backward-curved, single-intake
1 Accessory part: inlet ring 31050-2-4013, not included in scope of delivery. Short nozzle 31051-2-4013 on request.
2 Max. clearance for screw 10 mm
3 Cable PFA AWG20, 4x crimped splices
Connection diagram
U1 blue Z brown U2 black
PE green/yellow
Item no. 13313-5-9980 · ENU · Change 96942 · Approved 2018-04-26 · Page 3 / 4
ebm-papst Mulfingen GmbH & Co. KG ·

R4E310-AQ31-12
Curves: Air performance 60 Hz
pfs @ rho=1,2 kg/m³
460
440
420
400
380
pfs [Pa]
360
340
320
300
280
260
240
220
200
180
160
140
120
100
80
60
40
20
0
4
qv [CFM]
qv [m³/h]
AC centrifugal fan
backward-curved, single-intake
1.4001.2001.00080060040020000
3
2
1
2.5002.0001.5001.00050000
1,8
1,7
1,6
1,5
1,4
1,3
1,2
1,1
1
0,9
0,8
0,7
0,6
0,5
0,4
0,3
0,2
0,1
pfs [InH2O]
Measurement: LU-58260-1
Air performance measured according to ISO
5801 installation category A. For detailed
information on the measurement setup,
contact ebm-papst. Intake sound level:
Sound power level according to ISO 13347 /
sound pressure level measured at 1 m
distance from fan axis. The values given are
valid under the specified measuring
conditions and may vary due to conditions of
installation. For deviations from the standard
configuration, the parameters have to be
checked on the installed unit.
Measured values
U
V
1
2
3
4
U = Voltage · f = Frequency · n = Speed (rpm) · Pe= Power consumption · I = Current draw · qV= Air flow · pfs= Pressure increase
230
230
230
230
f
Hz
60
60
60
60
n
min
1700
1675
1655
1675
P
-1
W
225
256
276
257
I
e
A
1.13
1.24
1.31
1.24
q
V
m3/h
2505
2065
1570
1010
p
Pa
0
140
260
340
q
fs
V
cfm
1475
1215
925
595
p
fs
in. wg
0.00
0.56
1.04
1.36
Item no. 13313-5-9980 · ENU · Change 96942 · Approved 2018-04-26 · Page 4 / 4
ebm-papst Mulfingen GmbH & Co. KG ·