Specifications

B
VFD-G Series
DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED
B-1
ACCESSORIES
B.1 All Braking Resistors & Braking Units Use in AC 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 braking units with total of 16
braking resistors, so each braking unit uses 8 braking resistors. There should be at least 10 cm
away from AC drive to avoid possible noise. Refer to the “Braking Unit Module User Manual”
for further detail.
Applicable
Motor
Voltage
HP kW
ÌFull
Load
Torqu e
KG-M
Equivalent
Resistors
Specification
for Each AC
Drive
Braking Unit
Model VFDB
No. of Unit Used
Braking Resistors
Model No. of Units Used
Braking
Torque
10%ED%
Minimum
Equivalent
Resistor
Value for
Each AC
Drive
7.5 5.5 3.111
500W 100
Ω
BR500W100
1
125
60
Ω
10 7.5 4.148
1000W 75Ω
BR1K0W075
1
125
45Ω
15 11 6.186
1000W 50Ω
BR1K0W050 1 125
50Ω
20 15 8.248
1500W 40Ω
BR1K5W040 1 125
40Ω
25 18.5 10.281
4800W 32
Ω
4030 1
BR1K2W008 4 125
32
Ω
30 22 12.338
4800W 27.2
Ω
4030 1
BR1K2W6P8 4 125
27.2
Ω
40 30 16.497
6000W 20Ω
4030 1
BR1K5W005 4 125
20Ω
50 37 20.6
9600W 16Ω
4045 1
BR1K2W008 8 125
16Ω
60 45 24.745
9600W 13.6Ω
4045 1
BR1K2W6P8 8 125
13.6Ω
75 55 31.11
12000W 10
Ω
4030 2
BR1K5W005 8 125
10
Ω
460V Series
100 75 42.7
19200W 6.8
Ω
4045 2
BR1K2W6P8 16 125
6.8
Ω
Note:
1. Please select the factory default resistance value (Watt) and the frequency value (ED%)
2. If damage resulted in the drive or other equipments due to the fact that the braking resistors and the braking
modules in use are not provided by Delta, the warranty will be void.
3. Take into consideration the safety of the environment when installing the braking resistors.
4. If the minimum resistance value is to be utilized, consult local dealers for the calculation of the Watt figures.
5. Please select thermal relay trip contact to prevent resistor over load.
6. When using more than 2 braking units, equivalent resistor value of parallel braking unit can’t be less than the
value in the column “
Minimum Equivalent Resistor Value for Each AC Drive” (the right-most column in
the table).