Mitsubishi NF-S Series - 6.7 Protective Coordination with Motor Starters

51
Fig. 6.17 600V Wire and MCCB Protection Compatibility
2000
1000
100
200
300
400
600
800
10
20
30
40
60
80
1
0.8
10 100 1000 10000
Current (A)
a) 50A-fream MCCB
Tripping time (s)
0.6
0.5
2
3
4
6
8
2000
1000
100
200
300
400
600
800
10
20
30
40
60
80
1
0.8
10 100 1000 10000
Current (A)
c) 225A-fream MCCB
Tripping time (s)
0.6
0.5
2
3
4
6
8
2000
1000
100
200
300
400
600
800
10
20
30
40
60
80
1
0.8
100 1000 10000 100000
Current (A)
d) 400A-fream MCCB
Tripping time (s)
0.6
0.5
2
3
4
6
8
2000
1000
100
200
300
400
600
800
10
20
30
40
60
80
1
0.8
10 100 1000 10000
Current (A)
b) 100A-fream MCCB
Tripping time (s)
0.6
0.5
2
3
4
6
8
MCCB rating
15A
MCCB rating
125A
MCCB rating
250A
300A
350A
400A
150A
175A
200A
225A
20A
30A
40A
50A
Wire size
1.0mm
2
Wire size
16mm
2
Wire size
50mm
2
70mm
2
95mm
2
120mm
2
150mm
2
25mm
2
35mm
2
50mm
2
70mm
2
MCCB rating
60A
75A
100A
Wire size
10mm
2
16mm
2
25mm
2
1.5mm
2
2.5mm
2
4.0mm
2
6.0mm
2