Eaton Industrial Switchgear - XEnergy XPole Energy distribution, switching and protection

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Circuit-breakers, fuses
Tripping characteristics for miniature circuit-breakers
2010 CA08103002Z-EN
19/57
Miniature circuit-breakers (MCB)
FAZ...
Tripping characteristics at 30 °C: Tripping characteristics at 30 °C:
S according to IEC/EN 60947 Z according to IEC/EN 60947
FAZT AZ...
Tripping characteristics FAZ at 30 °C Tripping characteristics at 30 °C:
B, C, D to IEC/EN 60898 C, D according to IEC/EN 60898
0.0005
1 2 3 4 5 6 7 8 9 10 15 20 30 40 50
0.001
0.002
0.005
0.01
0.02
0.05
0.1
0.2
0.5
10
t[s]
30
60
120
300
600
1200
3600
7200
1
2
5
1.051.30
Specified
non-tripping current
nt = 1.05x n
for t > 1 h
Specified
tripping current
t = 1.30 x
n
for t < 1 h
I
I
I
I
x rated current
0.0005
1 2 3 4 5 6 7 8 9 10 15 20 30 40 50
0.001
0.002
0.005
0.01
0.02
0.05
0.1
0.2
0.5
1
2
5
10
t[s]
30
60
120
300
600
1200
3600
7200 1.051.30
Specified
non-tripping current
nt = 1.05x n
for t > 1 h
Specified
tripping current
t= 1.30 x
n
for t < 1 h
I
I
I
I
x rated current
B C
0.01
0.1
1
10
10
1
100
2 1 3 4 6 8 10 20
t[s]
D
n x I
0.0005
1 2 3 4 5 6 7 8 9 10 15 20 30 40 50
0.001
0.002
0.005
0.01
0.02
0.05
0.1
0.2
0.5
1
2
5
10
t[s]
30
60
D C
120
300
600
1200
3600
1.131.45
7200 Specified
non-tripping current
nt = 1.13X
n
for t > 1 h
Specified
tripping current
t = 1.45X n
for t < 1 h
I
I
I
I
X rated current
FAZ, FAZT