267 
Appendix 2 Braking Components   
1. Definition of external braking unit model 
DBU -X -XXX
Braking
unit
Code Voltage
2 AC 200V
4 AC 400V
6 AC 600V
Code Power
015 15kW
022 22kW
030 30kW
045 45kW
110 110kW
220 220kW
AC voltage level
Power of matched 
drive when ED10% 
 
Attached Fig. 2-1    Definition of brake unit model 
Note: ED10% in the above figure means the brake utilization rate is 10%.   
2. External brake module configuration (configuration for working conditions of 10% braking utilization rate 
and 760V braking action voltage) 
Attached Table 2-1  External brake module configuration 
Motor rated 
power (kW) 
Brake unit model and 
parallel number 
Brake resistor 
configuration 
Braking torque (%)
90 DBU-4045C*2 9600W/13.6Ω*2 
120 
110 DBU-4030D*3 6000W/20Ω*3 
100 
132 DBU-4045C*3 9600W/13.6Ω*3 
130 
160 DBU-4220B*1 40kW /3.4Ω*1 
140 
200 DBU-4220B*1 60KW /3.2Ω*1 
120 
220 DBU-4220B*1 60KW /3.2Ω*1 
110 
280 DBU-4300*1  60KW/2Ω*1 
110 
 
Note: The above configuration suggestions are suitable for most applications. For specific applications or 
other braking working conditions, please consult our company.   
3. Brake resistor configuration of the built-in brake unit drive (The application working condition is 10% braking 
utilization rate)   
Attached Table 2-2    Brake resistor accessory   
Motor rated power 
(kW) 
Braking resistor model 
Braking torque (%) 
0.75 70W/750Ω 120 
1.5 260W/400Ω 120 
2.2 260W/250Ω 140