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3VT2 Molded Case Circuit Breakers up to 250 A
Overcurrent releases
3/22
Siemens LV 36 · 2008
3
Tripping characteristics
20
200
2000
50
500
5000
10
100
1000
10000
t
[s]
L
I
NSO0_00221
1 2
5
20 50
10
0.1 0.2 0.5
x
I
n
0.01
0.02
0.05
0.1
0.2
0.5
1
2
5
TV
300
200
100
0
20
10
3
1
20
10
3
1
I
t
r
[s]
t
v
[ms]
I
r
L
S
I
sd
I
n
= 100 A
I
n
= 160 A
I
n
= 250 A
I
r
t
r
I
sd
t
v
min.
max.
3 x
I
r
9 x
I
r
5 x
I
r
I
n = 250 A
I
n = 160 A
I
n = 100 A
7 x
I
r
I
r
t
r
t
v
I
sd
I
n
20
200
2000
50
500
5000
10
100
1000
10000
t
[s]
NSO0_00222
1 2
5
20 50
10
0.1 0.2 0.5
x
I
n
0.01
0.02
0.05
0.1
0.2
0.5
1
2
5
n
20
15
8
3
20
15
8
3
I
n
= 100 A
I
n
= 160 A
I
n
= 250 A
t
v
[ms]
L
S
I
sd
I
n = 100 A
I
n = 160 A
I
n = 250 A
I
M
I
r
t
r
I
sd
t
v
t
r
[s]
300
200
100
0
I
r
min.
max.
I
r
t
r
t
v
I
sd
I
n
7 x
I
r
5 x
I
r
3 x
I
r
9 x
I
r