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System Manual – MOVITRAC® 07
Selection of the braking resistor
Project Planning
Example
When an intermittent braking power of 3 kW is needed with a cyclic duration factor of 40
%, this requires a braking resistor with a continuous power of 1.5 kW, for example
BW018-015.
Flat-type 400/500
V
Braking resistor type
BW018-015
BW018-035
BW018-075
BW915
Load capacity
100 % cdf
1.5 kW
3.5 kW
7.5 kW
16 kW
Resistance value
R
BW
18
Ω
±
10 %
18
Ω
±
10 %
15
Ω
±
10 %
Trip current of F16
I
F
4.0 A
RMS
8.1 A
RMS
14 A
RMS
28 A
RMS
Enclosure
IP20 (when mounted)
For MOVITRAC
®
07A...-2..
2
×
parallel with 110
Braking resistor type
BW012-025
BW012-050
BW012-100
BW106
BW206
Load capacity
100 % cdf
2.5 kW
5.0 kW
10 kW
13 kW
18 kW
Resistance value
R
BW
12
Ω
±
10 %
6
Ω
±
10 %
Trip current of F16
I
F
10 A
RMS
19 A
RMS
27 A
RMS
38 A
RMS
42 A
RMS
Enclosure
IP20 (when mounted)
For MOVITRAC
®
07A...-2..
055/075
150 and 2
×
parallel with 220/300
05812AXX
Figure 50: Flat-type 230 V
P = Intermittent power [kW]
cdf = Cyclic duration factor of the braking resistor [%]
100 % cdf = Continuous power [kW]
