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B.1 All Brake Resistors & Brake Units Used in AC Motor Drives
Note: Please only use DELTA resistors and recommended values. Other resistors and values will void
Delta's warranty. Please contact your nearest Delta representative for use of special resistors. For
instance, in 460 V series, 100 HP, AC drive has 2 brake units with total of 16 brake resistors, so each
brake unit uses 8 brake resistors. There should be at least 10 cm away from AC drive to avoid
possible noise. Refer to the "Brake Unit Module User Manual" for further detail.
Applicable
Full
Motor
Load
Torque
HP
kW
KG-M
7.5
5.5
3.111
10
7.5
4.148
15
11
6.186
20
15
8.248
25 18.5 10.281
12.338 4800W 27.2Ω
30
22
40
30
16.497
50
37
20.6
24.745 9600W 13.6Ω
60
45
75
55
31.11
100
75
42.7
120
90
52.5
150 110
61
175 132
73.5
215 160
89
250 185
103
300 220
122.5
Revision July 2008, EG03, SW V1.06
Equivalent
Brake Unit
Resistors
Model VFDB
Specification
No. of Unit
for Each AC
Used
Drive
500W 100Ω
1000W 75Ω
1000W 50Ω
1500W 40Ω
4030
4800W 32Ω
4030
6000W 20Ω
4030
4045
9600W 16Ω
4045
12000W 10Ω
4030
4045
19200W 6.8Ω
13500W 5Ω
4132
21600W 4Ω
4132
21600W 4Ω
4132
21600W 3.4Ω
4132
27000W 2.5Ω
4132
27000W 2.5Ω
4132
Appendix B Accessories
Brake
Resistors Model
No. of Units Used
BR500W100
BR1K0W075
BR1K0W050
BR1K5W040
1
BR1K2W008
1
BR1K2W6P8
1
BR1K5W005
1
BR1K2W008
1
BR1K2W6P8
2
BR1K5W005
2
BR1K2W6P8 16
1
BR1K5W005
1
BR1K2W008 18
1
BR1K2W008 18
1
BR1K2W6P8 18
2
BR1K5W005 18
2
BR1K5W005 18
Minimum
Brake
Equivalent
Torque
Resistor Value
10%ED%
for Each AC
Drive
1
60Ω
125
1
45Ω
125
50Ω
1
125
40Ω
1
125
32Ω
4
125
27.2Ω
4
125
20Ω
4
125
16Ω
8
125
13.6Ω
8
125
10Ω
8
125
6.8Ω
125
9
120
5Ω
120
4Ω
100
4Ω
97
3.4Ω
115
2.5Ω
96
2.5Ω
B-1
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