Operating instructions
K2E250-RA50-11
Translation of the original operating instructions
3.2 Nominal data
Motor
M2E068-EC
Phase
1~
1~
Nominal voltage / VAC
230
230
Frequency / Hz
50
60
Method of obtaining
data
ml
ml
Valid for approval/
standard
-
-
Speed (rpm) / min
-1
2500
2450
Power consumption / W
210
285
Current draw / A
0.93
1.25
Capacitor / µF
5
5
Capacitor voltage / VDB
400
400
Min. back pressure / Pa
0
0
Min. ambient
temperature / °C
-25
-25
Max. ambient
temperature / °C
70
30
Starting current / A
1.5
1.4
ml = Max. load · me = Max. efficiency · fa = Free air
cs = Customer specification · ce = Customer equipment
Subject to change
3.3 Technical description
Weight
3.7 kg
Fan size
250 mm
Rotor surface
Painted black
Impeller material
PA plastic
Housing material
PA plastic
Number of blades
7
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
H1
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)
< 0.75 mA
Electrical hookup
With plug
Motor protection
Thermal overload protector (TOP)
internally connected
with cable
Variable
Protection class
I (with customer connection of protective
earth)
Motor capacitor
according to EN 60252-
1 in safety protection
class
S0
Conformity with
standards
EN 60335-1
Approval
UL 1004-3; CSA C22.2 No. 77
With regard to cyclic speed loads, note that the rotating parts of
the device are designed for a maximum of one million load
cycles. If you have special questions, consult ebm-papst for
support.
;
Use the device in accordance with its degree of protection.
Information on surface quality
The surfaces of the products conform to the generally applicable industrial
standard. The surface quality may change during the production period.
This has no effect on strength, dimensional stability and dimensional
accuracy.
The color pigments in the paints used perceptibly react to UV light over
the course of time. This does not however in any way affect the
technical properties of the products. The product is to be protected against
UV radiation to prevent the formation of patches and fading. Changes in
color are not a reason for complaint and are not covered by the warranty.
3.4 Mounting data
Strength class of
screws
8.8
For screw clearance, see Chapter 3.1 Product drawing
;
Secure the screws against unintentional loosening (e.g. use self-
locking screws).
Any further mounting data required can be taken from the product
drawing or Section Chapter 4.1 Mechanical connection.
3.5 Transport and storage conditions
Max. permitted
ambient temp. for
motor (transport/
storage)
+ 80 °C
Min. permitted
ambient temp. for
motor (transport/
storage)
- 40 °C
Item no. 11921-5-9970 · ENU · Change 96928 · Approved 2017-10-26 · Page 5 / 10
ebm-papst Mulfingen GmbH & Co. KG · Bachmühle 2 · D-74673 Mulfingen · Phone +49 (0) 7938 81-0 · Fax +49 (0) 7938 81-110 · [email protected] · www.ebmpapst.com