Protistor DC fuses
Protistor DC fuses
SCDC52
DC Square-body Fuses
Sizes 300 - 302 - 2x302
SR Brackets size 300 - 2400V DC
12/04
Dimensions
Main Characteristics
Pack:
1 piece
SRE from 20 to 180 A
3217
246
268
48
58
47.5 63
129
38 9
13
Microswitch MC 2R 3E 1-5N BS Ref. Number: J310025
Weight: 1150 g
20
25
32
40
50
63
80
100
125
160
180
CC 24 SRE 300 QF 0020
CC 24 SRE 300 QF 0025
CC 24 SRE 300 QF 0032
CC 24 SRE 300 QF 0040
CC 24 SRE 300 QF 0050
CC 24 SRE 300 QF 0063
CC 24 SRE 300 QF 0080
CC 24 SRE 300 QF 0100
CC 24 SRE 300 QF 0125
CC 24 SRE 300 QF 0160
CC 24 SRE 300 QF 0180
Breaking
Capacity
X075299
W075298
G079471
H079472
J079473
K079474
L079475
M079476
N079477
P079478
Q079479
Watts loss
0.8 ININ
(W) (W)
18
21
22
26
32
35
38
41
49
50
51
36
42
43
51
62
69
75
80
95
96
98
Size Current
rating
IN( A )
Designation
D300SE24C20QF
D300SE24C25QF
D300SE24C32QF
D300SE24C40QF
D300SE24C50QF
D300SE24C63QF
D300SE24C80QF
D300SE24C100QF
D300SE24C125QF
D300SE24C160QF
D300SE24C180QF
Catalog Number
Ref.
Number
Max. I2t
@ 2000 V
L/R = 15 ms L/R = 45 ms
(A2S) (A2S)
150
260
310
530
750
1650
3700
8000
14000
34000
57000
260
460
540
920
1300
2900
6500
14000
25000
60000
100000
300
@ 2400 V DC
100 kA
L/R = 15 ms
@ 2000 V DC
100 kA
L/R = 45 ms
DC Square-body Fuses
Sizes 300 - 302 - 2x302
SR Brackets size 300 - 2400V DC
SCDC53
Protistor DC fuses
Protistor DC fuses
12/04
SRE from 20 to 180 A
DC applications data
Time vs. current characteristics
Electrical characteristics Peak arc voltage
vs. working voltage
t (s) t (s)
L/R (ms)
I (A)
I (A)
U (V)
10 10 2 10 310 4
1000
1200
1400
1600
1800
2000
2200
2400
2600
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
20
32
50 63
100
160
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):
2000 V with breaking capacity of 80 kA
Um(V)
U (V)
0
400
800
1200
1600
2000
2400
5000
4000
3000
2000
1000
0
1
2
10 10
2 10 310 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: 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
25
40
80
125
180
