Operating instructions
W3G300-ER38-45
Translation of the original operating instructions
3.2 Nominal data
Motor
M3G074-CF
Nominal voltage / VDC
27.5
Nominal voltage
range / VDC
15 .. 32
Type of data definition
fa/cu
Speed (rpm) / min
-1
3320
Power input / W
335
Current draw / A
12.2
Min. ambient
temperature / °C
-40
Max. ambient
temperature / °C
70
ml = Max. load · me = Max. efficiency · fa = Running at free air
cs = Customer specs · cu = Customer unit
Subject to alterations
3.3 Data in accordance with ecodesign regulation EU 327/
2011
Actual
Request 2015
01 Overall efficiency η
es
/ %
41.3
30.9
02 Measurement category
A
03 Efficiency category
Static
04 Efficiency grade N
50.4
40
05 Variable speed drive
Yes
06 Year of manufacture
The year of manufacture is specified on the
rating plate on the product.
07 Manufacturer
ebm-papst Mulfingen GmbH & Co. KG
County court Stuttgart · HRA 590344
D-74673 Mulfingen
08 Type
W3G300-ER38-45
09 Power input P
e
/ kW
0.36
09 Air flow q
v
/ m³/h
2010
09 Pressure increase total p
fs
/
Pa
243
10 Speed (rpm) n / min
-1
3255
11 Specific ratio
*
1.00
12 Recycling/disposal
Information on recycling and disposal is
provided in the operating instructions.
13 Maintenance
Information on installation, operation and
maintenance is provided in the operating
instructions.
14 Additional components
Components used to calculate the energy
efficiency that are not apparent from the
measurement category are detailed in the
CE declaration.
*
Specific ratio = 1 + p
fs
/ 100 000 Pa
Data definition with optimum efficiency. The indicated efficiency values for obtaining
conformity with the Ecodesign Directive EU 327/2011 were achieved with defined air
conduction components (e.g. inlet nozzles). The dimensions are to be requested from ebm-
papst. If other air guide geometries are used on the installation side, the ebm-papst
evaluation loses its validity/conformity must be confirmed again. The product does not fall
within the scope of Regulation (EU) 2019/1781 due to the exception specified in Article 2(2a)
(motors completely integrated into a product).
3.4 Technical features
Mass
2.5 kg
Size
300 mm
Motor size
74
Material of impeller
PBT plastic
Material of wall ring
PP plastic
Number of blades
5
Direction of air flow
A
Balance quality per
DIN ISO 21940-11
G 10
Direction of rotation
Clockwise, seen on rotor
Type of protection
Motor IP24 KM
Insulation class
"B"
Humidity (F) /
environmental
protection class (H)
H2
Note ambient
temperature
Occasional start-up between -40 °C and -
25 °C is permissible. For continuous
operation at ambient temperatures below -
25 °C (e.g. refrigeration applications), a
fan version with special low-temperature
bearings must be used.
Mounting position
Any
Cooling bore / aperture
Rotor-side
Operation mode
S1
Motor bearing
Ball bearing; (sealed)
Life expectancies
25,000 h (depending on load profile and
ambient conditions)
Technical features
- Start at 85 °C (2 min permitted)
-Load dump protection
- Motor current limit
- Soft start
- Control input 0-5 VDC
- Standstill upon cable break
- Overvoltage detection
- Over-temperature protected electronics
- Line undervoltage detection
Electrical connection
Connector with connection line; Standby
current less than 500 µA
Motor protection
Reverse polarity and locked-rotor
protection
Cable exit
Lateral
Safety classification
III; Requires supply with safety extra-
low voltage SELV.
This component to be built-in can have
several local protection class ratings. The
specification refers to the basic design of
this component.
The final protection class is based on
the intended installation and connection of
the component.
Approval
E1; EAC
Remark
Type approval number - 036433
;
Use the device in accordance with its protection type.
Item no. 50908-5-9970 · ENG · Revision 234450 · Release 2022-03-31 · Page 5 / 11
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
