ICP-S Technical Manual
Overcurrent Protection Elements
Rev.A
8/13
0.001
0.01
0.1
1
10
100
1000
10000
0.01
Time (msec)
I
2
t (A
2
- ms)
0.1
1
10
100
1000
10000
100000
I
2
t-t
Characteristic Curve (ICP-S1.0)
Graph 1
Ta=25
°
C
B :Effective pulse critical line
(with no margin)
C :Effective pulse recommended
critical line (with margin)
0.001
0.01
0.1
1
10
100
1000
10000
0.01
Time (msec)
I
2
t (A
2
- ms)
0.1
1
10
100
1000
10000
100000
I
2
t-t
Characteristic Curve (ICP-S1.0)
Graph 2
Ta=25
°
C
A :Effective pulse breaking
line (with no margin)
B :Effective pulse critical line
(with no margin)
C :Effective pulse recommended
critical line (with margin)
DC 5A
DC 2A
DC 1A
61 (A
2
ms) at 20ms
A :Effective pulse breaking
line (with no margin)
