EN-12
Wiring Main Circuit Inputs
Installing Fuses
To protect the inverter, it is recommended to use semiconductor fuses like they are shown in the
table below.
Table 4 Input Fuse Selection
Consider the following precautions for the main circuit power supply input.
•
If a moulded case circuit breaker is used for the power supply connection (R/L1, S/L2, and T/L3),
ensure that the circuit breaker is suitable for the Inverter.
Inverter Type
Rated Inverter
Output
Current (A)
Fuse Selection
Selection Example (Ferraz)
Voltage (V)
Current (A)
I
2
t (A
2
s)
Model
Rating
I
2
t (A
2
s)
20P4
3.2
240
10
12~25
A60Q12-2
600V / 12A
17
20P7
4.1
240
10
12~25
A60Q12-2
600V / 12A
17
21P5
7.0
240
15
23~55
A60Q15-2
600V / 15A
26
22P2
9.6
240
20
34~98
A60Q20-2
600V / 20A
41
23P7
15
240
30
82~220
A60Q30-2
600V / 30A
132
25P5
23
240
40
220~610
A50P50-4
500V / 50A
250
27P5
31
240
60
290~1300
A50P80-4
500V / 80A
640
2011
45
240
80
450~5000
A50P80-4
500V / 80A
640
2015
58
240
100
1200~7200
A50P125-4
500V / 125A
1600
2018
71
240
130
1800~7200
A50P150-4
500V / 150A
2200
2022
85
240
150
870~16200
A50P150-4
500V / 150A
2200
2030
115
240
180
1500~23000
A50P200-4
500V / 200A
4000
2037
145
240
240
2100~19000
A50P250-4
500V/ 250A
6200
2045
180
240
300
2700~55000
A50P300-4
500V / 300A
9000
2055
215
240
350
4000~55000
A50P350-4
500V / 350A
12000
2075
283
240
450
7100~64000
A50P450-4
500V / 450A
20000
2090
346
240
550
11000~64000
A50P600-4
500V / 600A
36000
2110
415
240
600
13000~83000
A50P600-4
500V / 600A
36000
40P4
1.8
480
5
6~55
A60Q10-2
600V / 10A
10
40P7
2.1
480
5
6~55
A60Q10-2
600V / 10A
10
41P5
3.7
480
10
10~55
A60Q12-2
600V / 12A
17
42P2
5.3
480
10
18~55
A60Q15-2
600V / 15A
26
43P7
7.6
480
15
34~72
A60Q20-2
600V / 20A
41
44P0
8.7
480
20
50~570
A60Q30-2
600V / 30A
132
45P5
12.5
480
25
100~570
A60Q30-2
600V / 30A
132
47P5
17
480
30
100~640
A60Q30-2
600V / 30A
132
4011
24
480
50
150~1300
A70P50-4
700V / 50A
300
4015
31
480
60
400~1800
A70P70-4
700V / 70A
590
4018
39
480
70
700~4100
A70P80-4
700V / 80A
770
4022
45
480
80
240~5800
A70P80-4
700V / 80A
770
4030
60
480
100
500~5800
A70P100-4
700V / 100A
1200
4037
75
480
125
750~5800
A70P125-4
700V / 125A
1900
4045
91
480
150
920~13000
A70P150-4
700V / 150A
2700
4055
112
480
150
1500~13000
A70P200-4
700V / 200A
4800
4075
150
480
250
3000~55000
A70P250-4
700V / 250A
7500
4090
180
480
300
3800~55000
A70P300-4
700V / 300A
11000
4110
216
480
350
5400~23000
A70P350-4
700V / 350A
15000
4132
260
480
400
7900~64000
A70P400-4
700V / 400A
19000
4160
304
480
450
14000~25000
0
A70P450-4
700V / 450A
24000
4185
370
480
600
20000~25000
0
A70P600-4
700V / 600A
43000
4220
506
480
700
34000~40000
0
A70P700-4
700V / 700A
59000
4300
675
480
900
52000~92000
0
A70P900-4
700V / 900A
97000