Protistor DC
Protistor DC fuses
fuses
DC Square-body Fuses
Sizes 2x122 - 2x123
gR 750V DC
Size 2x122
gRC - gRD from 500 to 1000 A
Dimensions
Weight: 2825 g
Main Characteristics
Size Current
rating
IN( A )
Breaking
Capacity
Max. I
2
t
Watts loss
@ 900 V = L/R 40 ms
0.8 IN IN IP = 10 I
N P =
2
50 IN
(A
2
S)
(A S)
(W)
(W)
Designation
Ref.
Number
Catalog Number
500
630
800
900
2x122
@ 900V DC
100 kA
L/R = 40 ms
@ 750 V DC
100 kA
L/R = 100 ms
51
63
81
98
94
1 10
6
5 10
6
6
116
8 10
1.6 10
6
149 12.4 10
6
2.4 10
6
180 16 10
6
3.2 10
6
maximum I
2
t (A
2
s)
@ 800 V = L/R 40 ms
IP = 10 IN IP = 50 IN
190 25 10
6
*
CC 7,5 gRC 2122 TTF 0500
CC 7,5 gRC 2122 TTF 0630
CC 7,5 gRC 2122 TTF 0800
CC 7,5 gRD 2122 TTF 0900
Q 090473
R 090474
S 090475
T 220955
D2122GC75V500TF
D2122GC75V630TF
D2122GC75V800TF
D2122GD75V900TF
1000*
104
4.8 10
6
* CC 7,5 gRD 2122 TTF 1000* V 220956
D2122GD75V10CTF
Microswitch: MC 3E 1-5N Ref. Number: D310020
* Max I
2
t @ 800V = 750 VDC 100 kA L/R = 50 ms and breaking capacity @750 VDC 100 kA L/R = 50 ms
Pack:
1 piece
SCDC
28
12/04
Protistor DC fuses
DC Square-body Fuses
Sizes 2x122 - 2x123
gR 750V DC
Protistor DC fuses
Size 2x122
gRC - gRD from 500 to 1000 A
Electrical characteristics
DC applications data
L/R (ms)
90
80
70
60
50
40
30
20
10
0
1
1
2400
2000
1600
1200
800
1000
1100
500
600
700
800
900
400
2
Peak arc voltage
vs. working voltage
Um(V)
2
U (V)
0
200
400
600
800
1 : curve gRC - gRD 900
2 : curve gRD 1000
Above: Curves indicate maximum permissible value of time
constant L/R as a function of DC working voltage
1 : L/R = 100 ms
2 : L/R = 40 ms
Max. AC voltage (50/60 Hz):
1250 V with breaking capacity of 170 kA
Above: Curves indicate for various time constants L/R
the peak arc voltage which may appear across fuse
terminals, vs. DC working voltage
Time vs. current characteristics
500
630
800
t (s)
10 4
10 3
10 2
10 4
a= 130
A2=0.6
B1= 1.25
B2= 0.6
Cf3= 0.8
10 3
10 2
900
1000
1000
0
U (V)
a= 130
A2=0.6
B1= 1.25
B2= 0.6
Cf3= 0.8
10
10
1
10 -1
10 -2
10 -3
1
10 -1
10 -2
10 -3
10 -4
10 3
10 4
10 5
10 -4
10 2
I (A)
10 2
10 3
10 4
10 5
Above, left and right: Curves indicate, for each rated
current, pre-arcing time vs. R.M.S. pre-arcing current.
12/04
SCDC
29
± 7% tolerance for mean
pre-arcing current
I (A)
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