Protistor DC fuses
Protistor DC fuses
SCDC38
DC Square-body Fuses
Sizes 120- 122 - 2x122
SR 2000V DC
12/04
Dimensions
Main Characteristics
20
25
32
40
50
63
80
100
125
160
200
215
CC 20 SRC 120 QF 0020
CC 20 SRC 120 QF 0025
CC 20 SRC 120 QF 0032
CC 20 SRC 120 QF 0040
CC 20 SRC 120 QF 0050
CC 20 SRC 120 QF 0063
CC 20 SRC 120 QF 0080
CC 20 SRC 120 QF 0100
CC 20 SRC 120 QF 0125
CC 20 SRC 120 QF 0160
CC 20 SRC 120 QF 0200
CC 20 SRC 120 QF 0215
Breaking
Capacity
J079450
K079451
L079452
M079453
N079454
P079455
Q079456
R079457
S079458
T079459
V079460
W079461
Watts loss
0.8 ININ
(W) (W)
8
12.5
14.5
17.5
20.5
26
30
35
43
49
49.5
52
16
25
29.5
36
42
53.5
61.5
70.5
87.5
99
101
106
Size Current
rating
IN( A )
Designation
D120SC20C20QF
D120SC20C25QF
D120SC20C32QF
D120SC20C40QF
D120SC20C50QF
D120SC20C63QF
D120SC20C80QF
D120SC20C100QF
D120SC20C125QF
D120SC20C160QF
D120SC20C200QF
D120SC20C215QF
Catalog Number
Ref.
Number
Max. I2t
@ 1600 V
L/R = 15 ms L/R = 45 ms
(A2S) (A2S)
180
180
350
580
1030
1600
3100
5800
9200
19200
45000
55000
310
310
610
1000
1800
2800
5400
10000
16000
33200
78500
95000
Size 120
SRC from 20 to 215 A
Weight : 900 g
3
170
195
217
39
38 9
13
63
59.5
111
Microswitch: MCR 3E 1-5N BS Ref. Number : G310023
120 @ 2000 V=
100 kA
L/R = 15 ms
Pack:
1 piece
DC Square-body Fuses
Sizes 120- 122 - 2x122
SR 2000V DC
SCDC39
Protistor DC fuses
Protistor DC fuses
12/04
Size 120
SRC from 20 to 215 A
t (s)
I (A)
10 10 2 10 310 210 3 10 4
10 4
10 3
10 2
10
1
10 -1
10 -2
10 -3
10 -4
20 25
32 40
50
63100
160
215
C
C'
10 210 3 10 4
80
125
200
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
a= 130
A2=0.6
B1= 1.25
B2= 0.6
Cf3= 0.8
DC applications data
Time vs. current characteristics
Electrical characteristics
L/R (ms)
U (V)
1000
1200
1400
1600
1800
2000
2200
2400
90
80
70
60
50
40
30
20
10
0
Above: Curve indicates the maximum permissible value
of time constant L/R as a function of the DC working
voltage
1 : L/R = 45 ms
2 : L/R = 15 ms
Max. AC voltage (50/60 Hz):
1500 V with breaking capacity of 100 kA
Um(V)
U (V)
0
400
800
1200
1600
2000
4000
3500
3000
2500
2000
1500
1000
1
2
Above: Curves indicate for various time constants
L/R the peak arc voltage which may appear across
the fuse terminals, vs. DC working voltage
Peak arc voltage
vs. working voltage
Protistor DC fuses
Protistor DC fuses
SCDC40
DC Square-body Fuses
Sizes 120- 122 - 2x122
SR 2000V DC
12/04
Dimensions
Main Characteristics
60
200
250
315
400
CC 20 SRD 122 QF 0160
CC 20 SRD 122 QF 0200
CC 20 SRD 122 QF 0250
CC 20 SRD 122 QF 0315
CC 20 SRD 122 QF 0400
Breaking
capacity
D076639
X079462
Y079463
Z079464
A079465
Watts loss
0.8 ININ
(W) (W)
52.5
61.5
69
74
87
100
118
131
150
175
Size Current
rating
IN( A )
Designation
D122SD20C160QF
D122SD20C200QF
D122SD20C250QF
D122SD20C315QF
D122SD20C400QF
Catalog Number
Ref.
Number
Max. I2t
@ 1600 V
L/R = 15 ms L/R = 45 ms
(A2S) (A2S)
15000
26000
50000
117000
219000
25000
44000
87000
200000
380000
Pack:
1 piece
Microswitch: MCR 3E 1-5N BS Ref. Number : G310023
Size 122
SRD from 160 to 400 A
Weight : 1810 g
3
173
195
217
28
60
9
ø13
60
77
128 80.5
65
122
@ 1800 V DC
100 kA
L/R = 30 ms
@ 2000 V
DC
100k A
L/R = 15 ms
DC Square-body Fuses
Sizes 120- 122 - 2x122
SR 2000V DC
SCDC41
Protistor DC fuses
Protistor DC fuses
12/04
Size 122
SRD from 160 to 400 A
DC applications data
Electrical characteristics Peak arc voltage
vs. working voltage
t (s) t (s)
L/R (ms)
I (A)
I (A)
U (V)
102103 10 4
1000
1200
1400
1600
1800
2000
2200
2400
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 4
10 3
10 2
10
1
10 -1
10 -2
10 -3
10 -4
200
315
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
Max. AC voltage (50/60 Hz):
1500 V with breaking capacity of 100 kA
Um(V)
U (V)
0
400
800
1200
1600
2000
4000
3500
3000
2500
2000
1500
1000
1
2
160
250
400
C
C'
10 210 3 10 4
Above: Curves indicate for various time constants
L/R the peak arc voltage which may appear across
fuse terminals, vs. DC working voltage
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= 1.3
B2= 0.6
Cf3= 0.8
a= 130
A2=0.6
B1= 1.3
B2= 0.6
Cf3= 0.8
C
C'
Time vs. current characteristics
Protistor DC fuses
Protistor DC fuses
SCDC42
DC Square-body Fuses
Sizes 120- 122 - 2x122
SR 2000V DC
12/04
Dimensions
Main Characteristics
500
630
800
CC 20 SRD 2122 QF 500
CC 20 SRD 2122 QF 630
CC 20 SRD 2122 QF 800
Breaking
capacity
E076640
F076641
V096066
Watts loss
0.8 ININ
(W) (W)
145
155
182
274
314
367
Size Current
rating
IN( A )
Designation
D2122SD20C500QF
D2122SD20C630QF
D2122SD20C800QF
Catalog Number
Ref.
Number
Max. I2t
@ 1600 V
L/R = 15 ms L/R = 45 ms
(A2S) (A2S)
200000
468000
876000
348000
800000
1.520000
Pack:
1 piece
Microswitch: MCR 3E 1-5N BS Ref. Number : G310023
Size 2x122
SRD from 500 to 800 A
Weight : 3350 g
2x122
@ 1800 V DC
100 kA
L/R = 30 ms
@ 2000 V
DC
100k A
L/R = 15 ms
3
195
141
163
76.5
51
159.5 86.5
65
60 28
9
66
ø13
DC Square-body Fuses
Sizes 120- 122 - 2x122
SR 2000V DC
SCDC43
Protistor DC fuses
Protistor DC fuses
12/04
Size 2x122
SRD from 500 to 800 A
DC applications data
Electrical characteristics Peak arc voltage
vs. working voltage
t (s) t (s)
L/R (ms)
I (A)
I (A)
U (V)
102103 10 4
1000
1200
1400
1600
1800
2000
2200
2400
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 4
10 3
10 2
10
1
10 -1
10 -2
10 -3
10 -4
500
800
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
Max. AC voltage (50/60 Hz):
1500 V with breaking capacity of 100 kA
Um(V)
U (V)
0
400
800
1200
1600
2000
4000
3500
3000
2500
2000
1500
1000
1
2
630
C
C'
10 210 3 10 4
Above: Curves indicate for various time constants
L/R the peak arc voltage which may appear across
fuse terminals, vs. DC working voltage
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= 1.3
B2= 0.6
Cf3= 0.8
a= 130
A2=0.6
B1= 1.3
B2= 0.6
Cf3= 0.8
CC'
Time vs. current characteristics
