Seg WI Series - Page 282

11.2.1.2.4 Fuse Characteristic of a Full Range Fuse (FR-Fuse) – Phase Overcurrent Protection
»Char« = FR Fuse
Remark: This characteristic is sometimes also called the “Sweden curve”.
0.01
0.1
1
10
100
1000
10000
100000
1 10 100
I / I> (multiples of pickup)
wiPDOC_Z15
0.05
0.1
0.2
0.3
0.4
0.6
1
2
3
4
6
10
tChar=
t / s
Fig. 84: FR Fuse: trip delay, I > I
>
, example for I
Dyn.Lim.
= 20⋅I
>
.
See ╚═▷ “Explanation for All Characteristics (I>, I>>, I>>>)” and ╚═▷ “11.2.1.2 Inverse-
Time Characteristics (I>, I>>, I>>>)” for details.
Reset Delay
The reset modes “instantaneous” or “de󰊟nite time” are available. For this characteristic,
there is no reset mode with dynamic reset delay.
282 WIC1 WIC1-1.0-EN-MAN
11 Appendix
11.2.1.2.4 Fuse Characteristic of a Full Range Fuse (FR-Fuse) – Phase Overcurrent Protection