Protistor DC
Protistor DC fuses
fuses
DC Square-body Fuses
Sizes 300 - 302 - 2x302
SR size 2x302 - 2400V DC
SRD - SRF from 400 to 800 A
Dimensions
77
151
230
83.5
6
83.5
228
246
268
60
74,5
9
60 28
ø13
Weight: 4400 g
Main Characteristics
Size Current
rating
IN( A )
Breaking
Capacity
Max. I
2
t
Watts loss
@ 2000 V
0.8 IN IN
L/R = 15 ms L/R = 45 ms
(W)
(W)
(A
2
S)
(A
2
S)
Designation
Ref.
Number
Catalog Number
400
500
630
2x302 700
800
@ 2400 V DC
100 kA
L/R = 15 ms
@ 2000 V DC
100 kA
L/R = 45 ms
160
189
197
200
205
313
376
390
393
155,000
275,000
600,000
920,000
265,000
480,000
10
6
1.6 10
6
CC
CC
CC
CC
24
24
24
24
SRD
SRD
SRD
SRD
2302
2302
2302
2302
QF
QF
QF
QF
400
500
630
700
K084925
L084926
M084927
N084928
D2302SD24C400QF
D2302SD24C500QF
D2302SD24C630QF
D2302SD24C700QF
D2302SF24C800QF
395 780,000
1.3 10
6
CC 24 SRF 2302 QF 800 T075296
Microswitch MC 2R 3E 1-5N BS Ref. Number: J310025
Pack:
1 piece
SCDC
56
12/04
Protistor DC fuses
Protistor DC fuses
DC Square-body Fuses
Sizes 300 - 302 - 2x302
SR size 2x302 - 2400V DC
SRD - SRF from 400 to 800 A
Electrical characteristics
DC applications data
L/R (ms)
100
90
80
70
60
50
40
30
20
10
0
1000
1200
1400
1600
1800
2000
2200
2400
2600
Peak arc voltage
vs. working voltage
Um(V)
5000
1
4000
2
3000
2000
1000
400
800
1200
1600
2000
2400
0
U (V)
0
U (V)
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
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):
2000 V with breaking capacity of 80 kA
Time vs. current characteristics
t (s)
500
400
630
700
800
SRD
a= 130
A2=0.6
B1= 1.25
B2= 0.6
Cf3= 0.8
SRD
a= 130
A2=0.6
B1= 1.25
B2= 0.6
Cf3= 0.8
SRF
a= 130
A2=0.6
B1= 1.25
B2= 0.6
Cf3= 0.8
10 4
10 3
10 2
10
1
10 -1
10 -2
10 -3
10 -4
10 2
10 3
C
C'
C
C'
C
C'
10 4
10 2
10 3
10 4
500
5000
50000
Above: Curves indicate, for each rated current, pre-arcing time vs. R.M.S. pre-arcing current.
12/04
SCDC
57
I (A)
汽车电子
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