Mitsubishi NF-S Series Technical Notes page 16

CIRCUIT BREAKER SELECTION TABLE
Frame (A)
Type
Rated current In (A)
Rated insulation voltage Ui (V) AC
AC Breaking
capacity (kA rms)
IEC60947-2
Icu/Ics
Number of poles
Standard
Automatic tripping
device
Rating (A) and
Inst. (A)
Number of poles
Low-inst
Automatic tripping
device
Rating (A) and
Inst. (A)
Number of poles
Generator
Automatic tripping
device
Rating (A) and
Inst. (A)
Number of poles
Mag-Only
Automatic tripping
device
Rating (A) and
Inst. (A)
NF30-CS
3, 5, 10, 15, 20, 30
500
–
690V
500V –
440V 1.5/1.5 (415V)
1.5/1.5 (380V)
400V
230V 2.5/2 (240V)
2 3
Hydraulic-magnetic
Fixed ampere rating and
instantaneous
±
3 39
±
5 66
±
10 132
±
15 198
± 115
20 265
± 172
30 397
–
–
–
–
–
–
–
–
–
30
NF30-SP
3, 5, 10, 15, 20, 30
600
–
2.5/1
2.5/1
5/2
5/2
2 3
Hydraulic-magnetic
Fixed ampere rating and
instantaneous
±
17 3 33
±
28 5 55
±
57 10 110
±
86 15 165
±
20 220
± 105
30 330
–
–
–
–
–
–
2 3
Magnetic
Fixed ampere rating
instantaneous
±
3 30
±
5 50
±
10 100
±
15 150
±
20 200
±
30 300
50
NF50-CP
10, 15, 20, 30, 40, 50
600
–
2.5/1
2.5/1
5/2
5/2
2 3
Hydraulic-magnetic
Fixed ampere rating and
instantaneous
±
10 10 110
±
17 15 165
±
35 20 220
± 105
52 30 330
± 140
70 40 440
± 175
50 550
–
–
–
–
–
–
2 3
Magnetic
Fixed ampere rating
instantaneous
±
6 10 100
±
10 15 150
±
20 20 200
±
30 30 300
±
40 40 400
± 100
60 50 500
35
52
70
20
30
40
60
80
15