Protistor DC fuses
Protistor DC fuses
SCDC44
DC Square-body Fuses
Sizes 300 - 302 - 2x302
gR Brackets size 300 - 1750 to 2000V DC
12/04
Dimensions
Main Characteristics
6
8
10
12
16
20
25
32
40
50
63
80
80
100
125
CC 17,5 gRC 300 QF 0006
CC 17,5 gRC 300 QF 0008
CC 17,5 gRC 300 QF 0010
CC 17,5 gRC 300 QF 0012
CC 17,5 gRC 300 QF 0016
CC 20 gRC 300 QF 0020
CC 20 gRC 300 QF 0025
CC 20 gRC 300 QF 0032
CC 20 gRC 300 QF 0040
CC 20 gRC 300 QF 0050
CC 20 gRC 300 QF 0063
CC 20 gRC 300 QF 0080
CC 20 gRE 300 QF 0080
CC 20 gRE 300 QF 0100
CC 20 gRE 300 QF 0125
Breaking
Capacity
@ 1750 V DC
30 kA
L/R = 30 ms
@ 2000 V DC
30 kA
L/R = 30 ms
@ 2000 V DC
30 kA
L/R = 14 ms
@ 1800 V=
100 kA
L/R = 20 ms
P083733
Q083734
M089435
R087898
N089436
R086932
S086933
T086934
V086935
W086936
X086937
Y086938
P075752
Q075753
R075754
Watts loss
0.8 ININ
(W) (W)
3.4
4.4
5.8
6
6.7
7.9
10
13.5
16
19
23.5
28.5
22
28
30
6
8
10.6
11
12
14
18
24
29
34
42.5
51.5
40
50
55
Size Current
rating
IN( A )
Designation Catalog Number
Ref.
Number
Pack:
1 piece
Microswitch: MC R 3E 1-5N Ref. Number: G310023
gRC-gRE from 6 to 125 A
Weight: 1150 g
3217
246
268
48
58
59.5 63
111
38 9
13
D300GC17C6QF
D300GC17C8QF
D300GC17C10QF
D300GC17C12QF
D300GC17C16QF
D300GC20C20QF
D300GC20C25QF
D300GC20C32QF
D300GC20C40QF
D300GC20C50QF
D300GC20C63QF
D300GC20C80QF
D300GE20C80QF
D300GE20C100QF
D300GE20C125QF
300
DC Square-body Fuses
Sizes 300 - 302 - 2x302
gR Brackets size 300 - 1750 to 2000V DC
SCDC45
Protistor DC fuses
Protistor DC fuses
12/04
gRC-gRE from 6 to 125 A
DC applications data
Time vs. current characteristics
Electrical characteristics Peak arc voltage
vs. working voltage
t (s)
L/R (ms)
I (A)
U (V)
10 10 2 10 3 10 4
1200
1600
2000
2200
100
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
10 12
16
20 25
32 40
50 63
80
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):
1,700 V with breaking capacity of 80 kA
Um(V)
U (V)
0
1000
2000
4000
2000
0
1
3
4
52
10 10
2 10 3 10 4
Above, left to 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
80
100
125
10 10 2 10 3 10 4
a= 130
A2=0.6
B1= 1.25
B2= 0.6
Cf3= 0.8
6
8
gRC gREgRC
3 Curve gRC 1750 V
4 Curve gRC 2000 V
5 Curve gRE 2000 V
Above: Curves indicate for various time constants
L/R the peak arc voltage which may appear across
fuse terminals, vs. DC working voltage
