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System Manual – MOVITRAC® 07
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Selection of the braking resistor
Project Planning
Wire resistor
400/500 V
Example
For an intermittent braking power of 7 kW with a cyclic duration factor of 30%, you will
have to use a braking resistor with a continuous power of 2 kW, such as the BW247.
05815AXX
Figure 51: Wire resistor 400/500 V
P = Intermittent power [kW]
cdf = Cyclic duration factor of the braking resistor [%]
100 % cdf = Continuous power [kW]
Braking resistor type
BW100-005
BW100-006
BW168
BW268
BW147
BW247
BW347
Load capacity
100 % cdf
0.45 kW
0.6 kW
0.8 kW
1.2 kW
1.2 kW
2.0 kW
4.0 kW
Resistance value
R
BW
100
Ω
±
10 %
68
Ω
±
10 %
47
Ω
±
10 %
Trip current of F16
I
F
0.8 A
RMS
1.8 A
RMS
2.5 A
RMS
3.4 A
RMS
3.5 A
RMS
4.9 A
RMS
7.8 A
RMS
Enclosure
IP54
IP20 (when mounted)
For MOVITRAC
®
07A...-5..
015/022
015 ... 040
055/075