Emerson E300 Series - Page 95

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E300 Design Guide 95
Issue Number: 1
4.14.1 Minimum resistances and power ratings for the braking resistor at 40 °C (104 °F)
Table 4-18 Braking resistor resistance and power rating (200 V)
Table 4-19 Braking resistor resistance and power rating (400 V)
Table 4-20 Braking resistor resistance and power rating (575 V)
Overload protection
When an external braking resistor is used, it is essential that an overload protection device is incorporated in the braking resistor circuit;
this is described in Figure 4-29 Typical protection circuit for a braking resistor on page 96.
Model
Minimum resistance * Instantaneous power rating
Continuous
power rating
Ω kW kW
03200050
20 8.5
1.5
03200066 1.9
03200080 2.8
03200106 3.6
04200137
18 9.4
4.6
04200185 6.3
05200250 16.5 10.3 8.6
06200330
8.6 19.7
12.6
06200440 16.4
07200610
6.1 27.8
20.5
07200750 24.4
07200830 4.5 37.6 32.5
Model
Minimum resistance * Instantaneous power rating
Continuous
power rating
Ω kW kW
03400025
74 9.2
1.5
03400031 2.0
03400045 2.8
03400062 4.6
03400078
50 13.6
5.0
03400100 6.6
04400150
34 19.9
9.0
04400172 12.6
05400270 31.5 21.5 16.2
05400300 18 37.5 19.6
06400350
17 39.8
21.6
06400420 25
06400470 32.7
07400660
9.0 75.2
41.6
07400770 50.6
07401000 7.0 96.6 60.1
Model
Minimum resistance * Instantaneous power rating
Continuous
power rating
Ω kW kW
05500030
80 12.1
2.6
05500040 4.6
05500069 6.5
06500100
13 74
8.7
06500150 12.3
06500190
16.3
0650023
0 19.9
0650029
0 24.2
06500350 31.7
07500440
8.5 113.1
39.5
07500550 47.1
WARNING