Protistor DC fuses
Protistor DC fuses
SCDC48
12/04
DC Square-body Fuses
Sizes 300 - 302 - 2x302
gR Brackets size 302 - 2000V DC
Dimensions
3
246
268
74
77
152
86.5
2860
9
ø13
gRC-gRE from 100 to 280 A
Weigth: 4400 g
228
Main Characteristics
100
125
160
160
200
250
280
CC 20 gRC 302 QF 0100
CC 20 gRC 302 QF 0125
CC 20 gRC 302 QF 0160
CC 20 gRE 302 QF 0160
CC 20 gRE 302 QF 0200
CC 20 gRE 302 QF 0250
CC 20 gRE 302 QF 0280
Breaking
Capacity
@ 2000 V DC
30 kA
L/R = 30 ms
@ 2000 V DC
30 kA
L/R = 14 ms
@ 1800 V DC
100 kA
L/R = 20 ms
N086929
P086930
Q086931
S075755
T075756
V075757
W075758
Watts loss
0.8 ININ
(W) (W)
30
37
47.5
42
48
57
60
58.5
72
93
70
80
95
100
Size Current
rating
IN( A )
Designation Catalog Number
Ref.
Number
D302GC20C100QF
D302GC20C125QF
D302GC20C160QF
D302GE20C160QF
D302GE20C200QF
D302GE20C250QF
D302GE20C280QF
Microswitch MC 2R 3E 1-5N BS Reference number: J310025
302
DC Square-body Fuses
Sizes 300 - 302 - 2x302
gR Brackets size 302 - 2000V DC
SCDC49
Protistor DC fuses
Protistor DC fuses
gRC-gRE from 100 to 280 A
DC applications data
Time vs. current characteristics
Electrical characteristics Peak arc voltage
vs. working voltage
t (s) t (s)
I (A)
I (A)
10210 3 10 410 5
10 4
10 3
10 2
10
1
10 -1
10 -2
10 -3
10 -4
10 4
10 3
10 2
10
1
10 -1
10 -2
10 -3
10 -4
100
125
160
10 210 3 10 410 5
Above, left and right: Curves indicate, for each rated current,
pre-arcing time vs. R.M.S. pre-arcing current
a= 130
A2=0.6
B1= 1.25
B2= 0.6
Cf3= 0.8
a= 130
A2=0.6
B1= 1.25
B2= 0.6
Cf3= 0.8
±10% tolerance for mean pre-arcing current
160
200
250
280
gRC gRE
U (V)
100
90
80
70
60
50
40
30
20
10
0
Above: Curves indicate maximum permissible value of
time constant L/R as a function of DC working voltage 1 Curve gRC : L/R = 30 ms
2 Curve gRE : L/R = 15 ms
Max. AC voltage (50/60 Hz):
1700 V with breaking capacity of 80 kA
Um(V)
U (V)
0
1000
2000
4000
2000
0
1
3
42
Above: Curves indicate for various time constants
L/R the peak arc voltage which may appear across
the fuse terminals, vs. DC working voltage
3 Curve gRC 2000 V
4 Curve gRE 2000 V
L/R (ms)
12/04
1200
1600
2000
2200
