TI120 Series Variable Frequency Drive
Specification and Model Selection
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VFD model
Circuit breaker (A)
Contactor (A)
TI120-4T500G/560L
1600
1250
TI120-4T560G/630L
1600
1250
TI120-4T630G/710L
2000
1600
TI120-4T710G/800L
2000
1600
8.2.2 Selection table of brake resistor
Table 8-6 Reference Table for Selection of Brake Resistor
VFD model
Brake
unit
Brake resistor
Standard power
Standard
resistor
Minimum limit
resistance
TI120-4T0.75G/1.5LB
Standard
built-in
110W
750Ω
125Ω
TI120-4T1.5G/2.2LB
260W
400Ω
100Ω
TI120-4T2.2G/3.7LB
320W
250Ω
100Ω
TI120-4T3.7G/5.5LB
800W
150Ω
66.7Ω
TI120-4T5.5G/7.5LB
1600W
100Ω
40Ω
TI120-4T7.5G/11LB
1600W
75Ω
40Ω
TI120-4T11G/15LB
2000W
50Ω
25Ω
TI120-4T15G/18.5LB
2000W
40Ω
25Ω
TI120-4T18.5G/22LB
4800W
32Ω
20Ω
TI120-4T22G/30LB
4800W
27.2Ω
20Ω
TI120-4T30G/37LB
6000W
20Ω
14Ω
TI120-4T37G/45L
Built-in
optional
9600W
15Ω
12Ω
TI120-4T45G/55L
9600W
15Ω
12Ω
TI120-4T55G
15000W
12Ω
10Ω
TI120-4T75G/90L
20000W
8Ω
5Ω
TI120-4T90G/110L
28800W
5Ω
4Ω
TI120-4T110G/132L
30000W
5Ω
4Ω
TI120-4T132G/160L
35000W
5Ω
4Ω
Braking resistor value must be higher than the minimum limit value shown as above; otherwise it
may damage the brake unit.
Try to choose aluminum resistor instead of corrugated resistor, the parasitic inductance of
corrugated resistance is higher; resistor presents negative temperature characteristics, after
braking resistor keep running a period of time, resistance value decreases with temperature rising,