Protistor DC fuses
Protistor DC fuses
SCDC20
DC Square-body Fuses
Sizes 120 to 123
gR 750V DC
12/04
Size 120
gRC from 50 to 160 A
Dimensions
50
63
80
100
125
160
50
63
80
100
125
160
CC 7,5 gRC 120 EF 0050
CC 7,5 gRC 120 EF 0063
CC 7,5 gRC 120 EF 0080
CC 7,5 gRC 120 EF 0100
CC 7,5 gRC 120 EF 0125
CC 7,5 gRC 120 EF 0160
CC 7,5 gRC 120 TTF 0050
CC 7,5 gRC 120 TTF 0063
CC 7,5 gRC 120 TTF 0080
CC 7,5 gRC 120 TTF 0100
CC 7,5 gRC 120 TTF 0125
CC 7,5 gRC 120 TTF 0160
Breaking
capacity
@ 750 V=
100k A
L/R = 100 ms
@ 900 V=
100k A
L/R = 40 ms
Y084776
R085207
Q085206
P085205
R086242
N085204
B220824
Q082400
Z090435
R082401
P085251
R085253
Watts loss
0.8 ININ
(W) (W)
4.4
5.7
7.3
9.1
11.5
15
4.4
5.7
7.3
9.1
11.5
15
8.1
10.4
13.4
16.7
21
27
8.1
10.4
13.4
16.7
21
27
Size Current
rating
IN( A )
Designation
D120GC75V50EF
D120GC75V63EF
D120GC75V80EF
D120GC75V100EF
D120GC75V125EF
D120GC75V160EF
D120GC75V50TF
D120GC75V63TF
D120GC75V80TF
D120GC75V100TF
D120GC75V125TF
D120GC75V160TF
Catalog Number
Ref.
Number
Main Characteristics
Weight 715 g
Weight 650 g
Microswitch: MC 3E 1-5N Ref. Number: D310020
Max. I2t
@ 900 V = L/R 40 ms
IP = 10 INIP = 50
IN
(A2S) (A2S)
42500
75500
125000
200000
315000
485000
42500
75500
125000
200000
315000
485000
8500
15000
24500
40000
62500
100000
8500
15000
24500
40000
62500
100000
120
Pack:
1 piece
DC Square-body Fuses
Sizes 120 to 123
gR 750V DC
SCDC21
Protistor DC fuses
Protistor DC fuses
12/04
size 120
gRC from 50 to 160 A
t (s)
I (A)
U (V)
10 10 2 10 3 10 4
600
700
800
900
1000
1100
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
50
63
80 100
125 160
Above: Curve indicates 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
U (V)
0
200
400
600
800
1000
2400
2000
1600
1200
800
400
0
1
2
Above: Curves indicate for various time constants L/R
the peak arc voltage which may appear across fuse ter-
minals, vs. DC working voltage
± 7% tolerance for mean
pre-arcing current
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
L/R (ms) Um(V)
DC applications data
Electrical characteristics Peak arc voltage
vs. working voltage
Time vs. current characteristics
Protistor DC fuses
Protistor DC fuses
SCDC22
DC Square-body Fuses
Sizes 120 to 123
gR 750V DC
200
250
200
250
CC 7,5 gRC 121 EF 0200
CC 7,5 gRC 121 EF 0250
CC 7,5 gRC 121 TTF 0200
CC 7,5 gRC 121 TTF 0250
Breaking
Capacity
A086710
M085203
N085250
Q085252
Watts loss
0.8 ININ
(W) (W)
20.5
25.5
20.5
25.5
37.5
46.7
37.5
46.7
Size Current
rating
IN( A )
Designation
D121GC75V200EF
D121GC75V250EF
D121GC75V200TF
D121GC75V250TF
Catalog Number
Ref.
Number
Main Characteristics
Weight 1030 g
Weight 880 g
Microswitch: MC 3E 1-5N Ref. Number: D310020
Max. I2t
@ 900 V = L/R 40 ms
IP = 10 INIP = 50
IN
(A2S) (A2S)
755000
1250000
755000
1250000
150000
250000
150000
250000
12/04
Sizes 121
gRC from 200 to 250 A
121
Pack:
1 piece
@750 V DC
100 kA
L/R = 100 ms
@ 900 V DC
100 kA
L/R = 40 ms
Dimensions
DC Square-body Fuses
Sizes 120 to 123
gR 750V DC
SCDC23
Protistor DC fuses
Protistor DC fuses
12/04
DC applications data
Electrical characteristics Peak arc voltage
vs. working voltage
L/R (ms)
U (V)
600
700
800
900
1000
1100
90
80
70
60
50
40
30
20
10
0
Above: Curve indicates 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
U (V)
0
200
400
600
800
1000
2400
2000
1600
1200
800
400
0
1
2
Above: Curves indicate for various time constants L/R
the peak arc voltage which may appear across fuse
terminals, vs. DC working voltage
± 7% tolerance for mean
pre-arcing current
Above: Curves indicate, for each rated current,
pre-arcing time vs. R.M.S. pre-arcing current.
Time vs. current characteristics
t (s)
I (A)
10 10 2 10 3 10 4
10 4
10 3
10 2
10
1
10 -1
10 -2
10 -3
10 -4
200250
a= 130
A2=0.6
B1= 1.25
B2= 0.6
Cf3= 0.8
Sizes 121
gRC from 200 to 250 A
Um(V)
Protistor DC fuses
Protistor DC fuses
SCDC24
DC Square-body Fuses
Sizes 120 to 123
gR 750V DC
12/04
Size 122
gRC-gRD from 250 to 500 A
* Max. I2t @ 800 V=, L/R=40 ms and Breaking capacity = 100 kA @ 750VDC/50ms
Microswitch: MC 3E 1-5N Ref. Number: D310020
250
315
350
400
450
500*
250
315
350
400
450
500*
CC 7,5 gRC 122 EF 0250
CC 7,5 gRC 122 EF 0315
CC 7,5 gRC 122 EF 0350
CC 7,5 gRC 122 EF 0400
CC 7,5 gRD 122 EF 0450
CC 7,5 gRD 122 EF 0500*
CC 7,5 gRC 122 TTF 0250
CC 7,5 gRC 122 TTF 0315
CC 7,5 gRC 122 TTF 0350
CC 7,5 gRC 122 TTF 0400
CC 7,5 gRD 122 TTF 0450
CC 7,5 gRD 122 TTF 0500*
Breaking
Capacity
A087331
B087332
W221141
L089388
P220951
Q220952
B090437
M085249
G220898
C090438
R220953
S220954
Watts loss
0.8 ININ
(W) (W)
25.5
31.5
35
40.5
49
52
25.5
31.5
35
40.5
49
52
46.7
58
64.5
74.5
90
95
46.7
58
64.5
74.5
90
95
Size Current
rating
IN( A )
Designation
D122GC75V250EF
D122GC75V315EF
D122GC75V350EF
D122GC75V400EF
D122GD75V450EF
D122GD75V500EF
D122GC75V250TF
D122GC75V315TF
D122GC75V350TF
D122GC75V400TF
D122GD75V450TF
D122GD75V500TF
Catalog Number
Ref.
Number
Main Characteristics
1.25 106
2 106
2.5 106
3.1 106
4 106
6.2 106*
1.25 106
2 106
2.5 106
3.1 106
4 106
6.2 106*
250,000
400,000
500,000
600,000
800,000
1.2 106*
250,000
400,000
500,000
600,000
800,000
1.2 106*
Weight: 1300 g
Weight: 1150 g
Pack:
1 piece
Max. I2t
@ 900 V = L/R 40 ms
IP = 10 INP = 50
IN
(A2S) (A2S)
122
@750 V DC
100 kA
L/R = 100 ms
@ 900 V DC
100 kA
L/R = 40 ms
Dimensions
DC Square-body Fuses
Sizes 120 to 123
gR 750V DC
SCDC25
Protistor DC fuses
Protistor DC fuses
12/04
Size 122
gRC-gRD from 250 to 500 A
DC applications data
Electrical characteristics Peak arc voltage
vs. working voltage
L/R (ms)
U (V)
500
600
700
800
900
1000
1100
90
80
70
60
50
40
30
20
10
0
Above: Curves indicate maximum permissible value of time cons-
tant L/R as a function of DC working voltage
1: L/R = 100 ms
2: L/R = 40 ms
1: curve gRC - gRD 450A
2: curve gRD 500A
Max. AC voltage (50/60 Hz):
1250 V with breaking capacity of 170 kA
Um(V)
U (V)
0
200
400
600
800
1000
2400
2000
1600
1200
800
400
0
1
1
2
2
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.
t (s) t (s)
I (A)
10 210 310 4 10 510 210 310 4 10 5
10 4
10 3
10 2
10
1
10 -1
10 -2
10 -3
10 -4
250
315
350
400
450
500
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
± 7% tolerance for mean
pre-arcing current
I (A)
gRC gRD
Time vs. current characteristics
10 4
10 3
10 2
10
1
10 -1
10 -2
10 -3
10 -4
Protistor DC fuses
Protistor DC fuses
SCDC26
DC Square-body Fuses
Sizes 120 to 123
gR 750V DC
12/04
Size 123
gRB-gRC-gRD from 500 to 800 A
Weight: 2100 g
Weight: 1900 g
Microswitch: MC 3E 1-5N Ref. Number: D310020
500
500
630
700
750
630
700
750
800
800
CC 7,5 gRC 123 EF 0500
CC 7,5 gRC 123 TTF 0500
CC 7,5 gRB 123 EF 0630
CC 7,5 gRB 123 EF 0700
CC 7,5 gRD 123 EF 0750
CC 7,5 gRB 123 TTF 0630
CC 7,5 gRB 123 TTF 0700
CC 7,5 gRD 123 TTF 0750
CC 6.6 gRB 123 EF 0800
CC 6.6 gRB 123 TTF 0800
Breaking
capacity
@ 750 V DC
100 kA
L/R = 100 ms
@ 900 V DC
100 kA
L/R = 40 ms
@ 750 V DC
100 kA
L/R = 50 ms
@ 660 V DC
100 kA
L/R = 50 ms
M089389
D090439
B098556
Q078191
F220943
C098557
F090441
H220945
G220944
J220946
Watts loss
0.8 ININ
(W) (W)
51
51
74
82
82
74
82
82
90
90
93.5
93.5
Size Current
rating
IN( A )
Designation
D123GC75V500EF
D123GC75V500TF
D123GB75V630EF
D123GB75V700EF
D123GD75V750EF
D123GB75V630TF
D123GB75V700TF
D123GB75V750TF
D123GB66V800EF
D123GB66V800TF
Catalog Number
Ref.
Number
Main Characteristics
Max. I2t
@ 900 V = L/R 40 ms
IP = 10 INP = 50
IN
(A2S) (A2S)
See max. operating
current next page
5 106
5 106
7.5 106
10 106
10 106
7.5 106
10 106
10 106
12.15 106
12.15 106
1 106
1 106
1.5 106
2 106
2 106
1.5 106
2 106
2 106
2.6 106
2.6 106
Pack:
1 piece
123
maximum I2t (A2s)
@ 800 V = L/R 40 ms
IP= 10 INIP= 50 IN
maximum I2t (A2s)
@ 660 V = L/R 30 ms
IP= 10 INIP= 50 IN
Dimensions
DC Square-body Fuses
Sizes 120 to 123
gR 750V DC
SCDC27
Protistor DC fuses
Protistor DC fuses
12/04
DC applications data
Electrical characteristics Peak arc voltage
vs. working voltage
L/R (ms)
U (V)
500
600
700
800
900
1000
1100
90
80
70
60
50
40
30
20
10
0
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
U (V)
0
200
400
600
800
1000
2400
2000
1600
1200
800
400
0
1
2
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
t (s)
10 210 310 410 5
10 4
10 3
10 2
10
1
10 -1
10 -2
10 -3
10 -4
500
630
700 - 750
800
630 550
700 600
750 600
800 650
Current
rating
(A)
Maximum
operating
current
(A)
a= 130
A2=0.52
B1= 1.25
B2= 0.52
Cf3= 0.8
± 7% tolerance for mean
pre-arcing current
I (A)
1: curve gRC
2: curve gRB-gRD
3: curve gRB ( 800 A )
Time vs. current characteristics
Size 123
gRB-gRC-gRD from 500 to 800 A
1
2
3
Um(V)
