Catalog Add On: BETA Low-Voltage Circuit Protection ...

4
BETA Protecting
SITOR Semiconductor Fuses
SITOR, LV HRC design
Series 3NE6 4.., 3NE9 4..
Operational class: aR, gR
Rated voltage: 600 V AC (1250 A),
800 V AC (710 A, 1250 A,),
900 V AC (710 A)
Rated current: 710 ... 1250 A
Time/current characteristic curves diagrams
[s]
vs
Virtual pre-arcing time
10 4
6
4
2
10 3
6
4
2
10 2
6
4
2
10 1
6
4
2
10 0
6
4
2
10 -1
6
4
2
10 -2
6
4
2
102 10 -3
4/36
2
% )
& # )
4 6 10
p
3 8 2 4 6 104 8 2 4 6 105 8
10 2
Prospective short-circuit current [A]
p
2
10 -3
4 6 103 8 2 4 6 104 8 2 4
Prospective short-circuit current [A]
Siemens ET B1 AO · 2008, Characteristic curves
© Siemens AG 2007
I2_11436
[s]
vs
Virtual pre-arcing time
10 4
6
4
2
10 3
6
4
2
10 2
6
4
2
10 1
6
4
2
10 0
6
4
2
10 -1
6
4
2
10 -2
6
4
2
' )
# )
I2_11437
6 105 8