Datasheet

Product Data Sheet 255 M
07/10/2017 page 4 of 8
3 Operating Data
3.1 Electrical Operating Data
Measurement
conditions:
Normal air density = 1,2 kg/m3; Temperature 23°C +/- 3°C; Motor axis horizontal; warm-up
time before measuring 5 minutes (unless otherwise specified). In the intake and outlet area
should not be any solid obstruction within 0,5 m.
∆p = 0: corresp. to free air flow (see chapter aerodynamics)
I: corresp. to arithm. mean current value
Features
Condition
Symbol
Values
Voltage range U 4,5 V 5,5 V
Nominal voltage U
N
5 V
Power consumption
∆p = 0
0010
P
0,15 W 0,25 W 0,25 W
Tolerance
+- 17,5 % +- 12,5 % +- 15 %
Current consumption
∆p = 0
0010
I
36 mA 50 mA 42 mA
Tolerance
+- 17,5 % +- 12,5 % +- 15 %
Speed
∆p = 0
0010
n
5.800 1/min 6.500 1/min 7.400 1/min
Tolerance
+- 12,5 % +- 10 % +- 10 %
Starting current
consumption
60 mA
3.2 Electrical Features
Electronic function None
Reversed polarity protection Impedance
Max. residual current at U
N
I
F
<= 5 mA
Locked rotor protection Impedance protected
Locked rotor current at U
N
I
block
approx. 60 mA