Semiconductor fuses
Semiconductor (AC) fuses
SCAC226
Other Protistor®Fuses
BS88-4 Fuses
17x49 gRB/URB - 690 VAC
12/04
Voltage
rating
UN( V )
690
690
Class
gRB
URB
Current
rating
IN( A )
12
16
20
25
32
35
40
45
50
55
63
75
80
90
100
Tested
Breaking capacity
200 k A
@ 690 V
200 k A
@ 690 V
Estimated
Breaking capacity
300 k A
@ 690 V
300 k A
@ 690 V
Total clearing
I2t @ UN
I2tt (A2s)
pre-arcing
I2t @ 1 ms
I2tp (A2s)
4.2
9.6
17.1
26.8
52.5
69
96
130
154
210
310
520
620
840
965
Watts loss
0.8 ININ
1.95
2.2
3.0
4.4
5.0
5.2
5.8
6.3
7.2
7.4
8.0
8.8
9.4
11
13
3.5
4.0
5.5
8.0
9.0
9.5
10.5
11.5
13
13.5
14.5
16
17
20
23.5
Minimum operating voltage for separate trip-indicator: 20 V
EXTREMELY HIGH BREAKING CAPACITY FUSES:
PROTECTION OF SEMICONDUCTORS
AS PER IEC STANDARD 60269.1 AND 4
690 V VOLTAGE RATING AS PER IEC 33
gR CLASS (CURRENT RATING 12 TO 90 A) AS PER
VDE 636-23
- CLEARING ALL OVERLOADS
- IMPROVED SAFETY AND PROTECTION
- ENABLING SELECTIVE COORDINATION WITH ALL FUSES
WITHIN DISTRIBUTION CIRCUIT
aR CLASS (CURRENT RATING 100 A) ACCORDING TO VDE
636-23 AND IEC 60269.4
CONNECTION AS PER:
- GERMAN STANDARD DIN 43653/00C
- BRITISH STANDARD BS 88-4
These fuses are UL Recognized
30
65
110
170
330
430
610
820
970
1320
1950
3250
3900
5300
6150
Main Characteristics
SCAC227
Semiconductor fuses
Semiconductor (AC) fuses
Other Protistor®Fuses
BS88-4 Fuses
17x49 gRB/URB - 690 VAC
12/04
12
16
20
25
32
35
40
45
50
55
63
75
80
90
100
X221004
Y221005
Z221006
A221007
B221008
C221009
D221010
E221011
F221012
G221013
H221014
J221015
K221016
L221017
M221018
6,9 gRB 17 D08P 12
6,9 gRB 17 D08P 16
6,9 gRB 17 D08P 20
6,9 gRB 17 D08P 25
6,9 gRB 17 D08P 32
6,9 gRB 17 D08P 35
6,9 gRB 17 D08P 40
6,9 gRB 17 D08P 45
6,9 gRB 17 D08P 50
6,9 gRB 17 D08P 55
6,9 gRB 17 D08P 63
6,9 gRB 17 D08P 75
6,9 gRB 17 D08P 80
6,9 gRB 17 D08P 90
6,9 URB 17 D08P 100
DN17GB69V12P
DN17GB69V16P
DN17GB69V20P
DN17GB69V25P
DN17GB69V32P
DN17GB69V35P
DN17GB69V40P
DN17GB69V45P
DN17GB69V50P
DN17GB69V55P
DN17GB69V63P
DN17GB69V75P
DN17GB69V80P
DN17GB69V90P
DN17UB69V100P
46.2
18.5
8.73
96
69.4 - 81
16
1.5
15.5
ø18
46.2
24.4
8.73
96
69.4 - 81
16
27
782.7
1.5
15.5
46.2
18.5
7.14
77.2
61 - 65.5
12.7
2
9.5
ø18
46.2
24
7.14
77.2
61 - 65.5
12.7
27
2
9.5
7
74
Current
rating
Ref.
Number
Designation Catalog Number
Weight: 42 g
Packaging: 10 pieces
Weight: 55 g
Packaging: 10 pieces
Weight: 40 g
Packaging: 10 pieces
Weight: 60 g
Packaging: 3 pieces
12
16
20
25
32
35
40
45
50
55
63
75
80
90
100
M220972
N220973
P220974
Q220975
R220976
S220977
T220978
V220979
W220980
X220981
Y220982
Z220983
A220984
B220985
C220986
6,9 gRB 17 D08/12
6,9 gRB 17 D08/16
6,9 gRB 17 D08/20
6,9 gRB 17 D08/25
6,9 gRB 17 D08/32
6,9 gRB 17 D08/35
6,9 gRB 17 D08/40
6,9 gRB 17 D08/45
6,9 gRB 17 D08/50
6,9 gRB 17 D08/55
6,9 gRB 17 D08/63
6,9 gRB 17 D08/75
6,9 gRB 17 D08/80
6,9 gRB 17 D08/90
6,9 URB 17 D08/100
DN17GB69V12
DN17GB69V16
DN17GB69V20
DN17GB69V25
DN17GB69V32
DN17GB69V35
DN17GB69V40
DN17GB69V45
DN17GB69V50
DN17GB69V55
DN17GB69V63
DN17GB69V75
DN17GB69V80
DN17GB69V90
DN17UB69V100
Current
rating
Ref.
Number
Designation Catalog Number
12
16
20
25
32
35
40
45
50
55
63
75
80
90
100
W220957
X220958
Y220959
Z220960
A220961
B220962
C220963
D220964
E220965
F220966
G220967
H220968
J220969
K220970
L220971
6,9 gRB 17/12
6,9 gRB 17/16
6,9 gRB 17/20
6,9 gRB 17/25
6,9 gRB 17/32
6,9 gRB 17/35
6,9 gRB 17/40
6,9 gRB 17/45
6,9 gRB 17/50
6,9 gRB 17/55
6,9 gRB 17/63
6,9 gRB 17/75
6,9 gRB 17/80
6,9 gRB 17/90
6,9 URB 17/100
BS17GB69V12
BS17GB69V16
BS17GB69V20
BS17GB69V25
BS17GB69V32
BS17GB69V35
BS17GB69V40
BS17GB69V45
BS17GB69V50
BS17GB69V55
BS17GB69V63
BS17GB69V75
BS17GB69V80
BS17GB69V90
BS17UB69V100
Current
rating
Ref.
Number
Designation Catalog Number
12
16
20
25
32
35
40
45
50
55
63
75
80
90
100
D220987
E220988
F220989
G220990
H220991
J220992
K220993
L220994
M220995
N220996
P220997
Q220998
R220999
S221000
T221001
6,9 gRB 17P12
6,9 gRB 17P16
6,9 gRB 17P20
6,9 gRB 17P25
6,9 gRB 17P32
6,9 gRB 17P35
6,9 gRB 17P40
6,9 gRB 17P45
6,9 gRB 17P50
6,9 gRB 17P55
6,9 gRB 17P63
6,9 gRB 17P75
6,9 gRB 17P80
6,9 gRB 17P90
6,9 URB 17P100
BS17GB69V12P
BS17GB69V16P
BS17GB69V20P
BS17GB69V25P
BS17GB69V32P
BS17GB69V35P
BS17GB69V40P
BS17GB69V45P
BS17GB69V50P
BS17GB69V55P
BS17GB69V63P
BS17GB69V75P
BS17GB69V80P
BS17GB69V90P
BS17UB69V100P
Current
rating
Ref.
Number
Designation Catalog Number
German standard with separate
trip-indicator
DIN 43623/00C
British standard with separate
trip-indicator BS 88-4
British standard without
blown fuse indication
German standard without
blown fuse indication
Semiconductor fuses
Semiconductor (AC) fuses
SCAC228
Other Protistor®Fuses
BS88-4 Fuses
17x49 gRB/URB - 690 VAC
12/04
t (s)
I (A) Ip (A)
Time vs current characteristics
Total clearing I2t I2t corrective factor
Peak arc voltage
10 10 210 310 4
0 200 400 600 800
0 200 400 600 700
10 4
10 3
10 2
10
1
10 -1
10 -2
10 -3
10 -4
10 5
10 4
10 3
10 -2
10
10 5
10 4
10 3
10 2
10
Above: Curves indicate, for each rated current, pre-
arcing time vs. R.M.S. pre-arcing current
Above: Curves show, for each rating, value of peak let-
through current IC as a function of available fault current Ip.
Above: Horizontal curves show for each rated current maximum
values of total clearing I2t (I2tt) as a function of prospective
current Ip. @ 690 V.
cos
ϕ
= 0.15.
Oblique lines indicate total clearing duration Tt and associated
pre-arcing duration in brackets.
Left: Curve shows variation of
total clearing time (I2tt) and total
clearing duration Ttas a function
of operating voltage U.
Left: Curve shows peak value
Um of arc voltage which
appears across fuse-link as a
function of operating voltage
U@ cos ϕ = 0.15
Tolerance for mean pre-arcing current ± 9%.
a= 130
A2=0.6
B1= 1.25
B2= 0.6
Cf3= 0.8
10 10 210 310 4
Ip (A)
U (V)
U (V)
I
2
t (A
2
s)
K
Um (V)
10 ms (5 ms)
10 ms (2,8 ms)
8 ms (2 ms)
7 ms (1,5 ms)
6 ms (1,3 ms)
5 ms (1 ms)
4 ms (0,8 ms)
3 ms (0,6 ms)
2 ms (0,4 ms)
1,5 ms (0,3 ms)
1 ms (0,2 ms)
100 A
90 A
80 A
75 A
63 A
55 A
50 A
45 A
40 A
35 A
32 A
25 A
20 A
16A
12 A
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
1600
1400
1200
Current limitation curves
1 2 3 4 5
2
3
4
5
10 10 210 310 4
I
C
(A)
Ic =
2 Ip
Ic =
2.5 Ip
12 16
20 25
32 35
35 45
50 55
63 75
80 90
100
C
C’
I
N
=100 A, aR class with CC’
limiting curve.
SCAC229
Semiconductor fuses
Semiconductor (AC) fuses
Other Protistor®Fuses
BS88-4 Fuses
17x49 gRB/URB - 690 VAC
Microswitch
0
100
200
300
400
500
600
0
100
200
300
400
500
600
100
90
80
70
60
50
40
30
20
10
0
1100
1000
900
800
700
600
500
0
Above: Curves indicate permissible value of time
constant L/R as a function of DC working voltage.
Curve 1: Ip ≥1,6 IN only for fuses gRB
(current rating from 12 to 50 A)
Curve 2: Ip ≥8 IN for fuses gRB et URB
U (V) U (V)
2
1
L/R (ms)
Um (V)
Curve indicates peak arc voltage
Um which may appear across the
fuse terminals at working voltage U.
Electrical characteristics:
IN= 3 A - UN= 250 VAC
IN= 2 A - UN= 30 VDC
Certain minimum operating vol-
tage/current
20 V-100 mA
Designation
Ref. Num.
Weight
Pack.
MC 6,3 GR 2.5 Y 310015 10 g 3 pieces
10
8.5
31
23
7
cosses à souder
ou clips 2.8
20
DC Application data
NEW gR-CLASS
OPTIMAL PROTECTION OF POWER EQUIPMENT
Thanks to recent technological developments, Ferraz Shawmut today
markets gR-class PROTISTOR®fuses capable of clearing all types of over-
loads, from low multiples of current ratings up to very high short-circuit
currents. Enhanced performance enables these fuses to provide solu-
tions to many previously unsolved problems in power electronics: pro-
tection of cables without the use of additional components, protection
of equipment from fire hazards, selective coordination of different fuses
within a single power distribution installation...
SELECTIVE COORDINATION
gR-class semiconductor fuses can be utilized in association with gI and gG-class
low voltage power distribution fuses of the same current rating, installed upst-
ream.
In a “selectively coordinated“ distribution installation, melting is limited
to the fuse associated with the faulted circuit, while upstream fuses remain
intact. This prevents unnecessary down-time due to power blackouts in non-
faulted branches.
FERRAZ SHAWMUT EXPERTISE
gR-class fuses should be used in the design of low voltage equipment and in the protection of
power electronics equipment. Designers can often substitute a gR-class fuse for an aR-class fuse
(10x38, 14x51, 22x58, PSC 000 and 17x49 DIN80 or BS 88-4) but the reverse is not true: an aR
fuse can never replace a gR fuse. Start protecting your new equipment with gR-class fuses today.
The application of gR class fuses, with current ratings less than 100 Amps, offers enhanced pro-
tection, safety and reliability, along with reduced risk of replacement errors and assembly costs.
Example:
100A aR vs. 100A gR
aR
Relay
gR
Before After
gR 100A gR 100A
gG 100A
M M
Example of
selective
coordination
t
30s
300A
minimum interrupting
current
I
C'
C
100A "aR"
t
2h
110A
I
100A "gR"
aR-CLASS vs. gR-CLASS
aR-class fuses feature a high minimum inter-
rupting current as compared with their cur-
rent rating. The primary time-current charac-
teristic of aR-class fuses is the CC’ curve,
above which another protection device must
be associated. The gR-class fuse represents
considerably improved performance in semi-
conductor protection.
12/04
