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Dimensions
Section 12
Short-circuit current limiting (cont.)
Technical advice
NG125a, N, H, L
1P / 2P / 3P / 4P
Peak current
DB124298
Prospective short-circuit current (kA eff.)
Peak current (kA)
1
2
10
1
2
4
10
3
5
8
6
7
9
20
5 6 7 8 9
4 3
100
50 40 30
20
15
4
3
2
6
5
7
8
9
1
cos phi = 0.3
= 0.5
= 0.7
= 0.8
= 0.9
= 0.95
b
b
Circuit breaker type in accordance with the mark:
v
v
1: NG125a
v
v
2: NG125N
v
v
3: NG125H
v
v
4: NG125L
v
v
5: 10-16 A
v
v
6: 20-25 A
v
v
7: 32-40 A
v
v
8: 50-63 A
v
v
9: 80-125 A
Thermal stress
DB405606
Prospective short-circuit current (kA eff.)
Thermal stress (A²s)
1
2
3
4
10A
16A
40A
125A
100A
80A
63A
50A
32A
25A
20A
10ms
10
10
10
10
10
6
5
2
4
3
0.1
1
10
100
5
5
5
5
5
b
b
Circuit breaker type in accordance with the mark:
v
v
1: NG125a 80-100-125 A
v
v
2: NG125N
v
v
3: NG125H
v
v
4: NG125L
Limitation curves for network
Ue: 220-240 V AC (Ph/N 110-130 V AC)