DC Ferrule Fuses
36x190
gR 1500V DC
SCDC15
Protistor DC fuses
Protistor DC fuses
12/04
t (s)
I (A)
U (V)
10 10 210 310 4
500
1000
1500
2000
2500
3000
0
500
1000
1500
2000
2500
90
80
70
60
50
40
30
20
10
0
10 4
10 3
10 2
10
1
10 -1
10 -2
10 -3
10 -4
40 50
63 80
100
Above: Curve indicates maximum permissible
value of time constant L/R as a function of DC
working voltage
1- L/R = 45 ms
2- L/R = 15 ms
U (V)
Um (V)
Above: Curves indicate for various time constants
L/R the peak arc voltage which may appear across
fuse terminals, vs. DC working voltage
Max. AC voltage (50/60 Hz):
3000 V with breaking capacity of 50 kA
a= 130
A2=0.6
B1= 1.25
B2= 0.6
Cf3= 0.8
± 9% tolerance for mean
pre-arcing current
DC applications data
Time vs. current characteristics
Electrical characteristics Peak arc voltage
vs. working voltage
L/R (ms)
Above: Curves indicate, for each
rated current, pre-arcing time vs.
R.M.S. pre-arcing current.
gRC - gRD from 40 to 100 A
A
A: with trip-indicator
B: without trip-indicator
B4000
3000
2000
1000
0
1
2