Semiconductor fuses
fuses
Semiconductor (AC)
Other Protistor
®
Fuses
BS88-4 Fuses
000 BS88 - 500 V to 690 VAC
EXTREMELY HIGH BREAKING CAPACITY FUSES: PROTECTION OF POWER
SEMICONDUCTORS AS PER IEC STANDARD 60269.1 AND 4, AND EN
60269-1 AND 4
500- 690 V VOLTAGE RATING (RATING 20 TO 400 A)
gR CLASS (gRB RATINGS 20 TO 125 A) ACCORDING
TO VDE 636-23
- CLEARING ALL OVERLOADS
- IMPROVED SAFETY AND PROTECTION
- ENABLING SELECTIVE COORDINATION WITH ALL FUSES
aR CLASS (URB RATINGS 75 TO 400 A) ACCORDING TO VDE 636-23
AND IEC 269.4
TWO MODELS ACCORDING TO BS 88-4 AND EN 60 269 .4
STANDARDS; Z3 DRAWING (74 mm BETWEEN AXES) WITHOUT
BLOWN FUSE
INDICATION - WITH SEPARATE TRIP INDICATOR
These fuses are UL Recognized
Main Characteristics
Voltage
rating
UN( V )
Class
Current
rating
IN( A )
Pre-arcing
I
2
t @ 1 ms
I
2
tp (A
2
s)
Total clearing
I
2
t (A
2
s)
Watts loss
0.8
I
N
Tested
Breaking
capacity
Estimated
Breaking capacity
I
N
7
9
10
12
14
16
18
20
21
20.5
21
23
24.5
26
31
36
45
58
58
66
690 V
gRB
690 V
URB
500 V
URB
20
25
32
40
50
63
80
100
125
75
80
100
110
125
160
200
250
315
350
400
12
20
39
70
102
210
475
970
1900
350
390
690
950
1300
2700
5250
9900
15500
22400
33200
80 @ 660 V
150 @ 660 V
270 @ 660 V
460 @ 660 V
730 @ 660 V
1500 @ 660 V
2900 @ 660 V
6000 @ 660 V
11800 @ 660 V
2250 @ 660 V
2500 @ 660 V
4200 @ 660 V
6800 @ 660 V
8900 @ 660 V
16000 @ 660 V
31500 @ 660 V
52000 @ 660 V
82000 @ 660 V
110000 @ 500 V
160000 @ 500 V
3.8
5.0
5.5
6.6
7.7
8.8
9.9
11
11.6
11.2
11.6
12.7
13.5
14.3
17.0
19.8
24.8
31.9
31.9
36.3
200k A
@ 690 V
300k A
@ 690 V
200k A
@ 690 V
300k A
@ 690 V
120k A
@ 500 V
Minimum operating voltage for separate trip indicator = 20 V
SCAC
214
12/04
Semiconductor (AC) fuses
Other Protistor
®
Fuses
BS88-4 Fuses
000 BS88 - 500 V to 690 VAC
Semiconductor fuses
References
British standard without blown fuse indicator
Current rating
Designation
Ref. Number
Catalog Number
20
25
32
40
50
63
80
100
125
75
80
100
110
125
150
160
200
250
315
350
400
6,9
6,9
6,9
6,9
6,9
6,9
6,9
6,9
6,9
gRB
gRB
gRB
gRB
gRB
gRB
gRB
gRB
gRB
000
000
000
000
000
000
000
000
000
BS88/020
BS88/025
BS88/032
BS88/040
BS88/050
BS88/063
BS88/080
BS88/100
BS88/125
T330044
V330045
W330046
X330047
Z330049
A330050
N330108
H330103
P330109
B330051
C330052
D330053
E330100
E330054
F330101
F330055
G330056
H330057
J330058
X330116
G330194
BS000GB69V20
BS000GB69V25
BS000GB69V32
BS000GB69V40
BS000GB69V50
BS000GB69V63
BS000GB69V80
BS000GB69V100
BS000GB69V125
BS000UB69V75
BS000UB69V80
BS000UB69V100
BS000UB69V110
BS000UB69V125
BS000UB69V150
BS000UB69V160
BS000UB69V200
BS000UB69V250
BS000UB69V315
BS000UB50V350
BS000UB50V400
6,9 URB 000 BS88/075
6,9 URB 000 BS88/080
6,9 URB 000 BS88/100
6,9 URB 000 BS88/110
6,9 URB 000 BS88/125
6,9 URB 000 BS88/150
6,9 URB 000 BS88/160
6,9 URB 000 BS88/200
6,9 URB 000 BS88/250
6,9 URB 000 BS88/315
5 URB 000 BS88/350
5 URB 000 BS88/400
Weight: 125 g
Packaging: 3 pieces
British standard with separate blown fuse trip-indicator
Current rating
Designation
Ref. Number
Catalog Number
20
25
32
40
50
63
80
100
125
75
80
100
110
125
150
160
200
250
315
350
400
6,9 gRB 000 BS88P020
6,9 gRB 000 BS88P025
6,9 gRB 000 BS88P032
6,9 gRB 000 BS88P040
6,9 gRB 000 BS88P050
6,9 gRB 000 BS88P063
6,9 gRB 000 BS88P080
6,9 gRB 000 BS88P100
6,9 gRB 000 BS88P125
6,9 URB 000 BS88P075
6,9 URB 000 BS88P080
6,9 URB 000 BS88P100
6,9 URB 000 BS88P110
6,9 URB 000 BS88P125
6,9 URB 000 BS88P150
6,9 URB 000 BS88P160
6,9 URB 000 BS88P200
6,9 URB 000 BS88P250
6,9 URB 000 BS88P315
5 URB 000 BS88P350
5 URB 000 BS88P400
Y330117
Z330118
A330119
B330120
C330121
D330122
E330123
F330124
G330125
H330126
J330127
K330128
L330129
M330130
N330131
P330132
Q330133
R330134
S330135
T330136
H330195
BS000GB69V20P
BS000GB69V25P
BS000GB69V32P
BS000GB69V40P
BS000GB69V50P
BS000GB69V63P
BS000GB69V80P
BS000GB69V100P
BS000GB69V125P
BS000UB69V75P
BS000UB69V80P
BS000UB69V100P
BS000UB69V110P
BS000UB69V125P
BS000UB69V150P
BS000UB69V160P
BS000UB69V200P
BS000UB69V250P
BS000UB69V315P
BS000UB50V350P
BS000UB50V400P
Weight: 135 g
Packaging: 3 pieces
The use of MC 6.3 GR 2-5N blown fuse remote
sensing microswitch is possible.
Ref. Number : Y 310015 mounted on separate
trip-indicator.
See Microswitch section
12/04
SCAC
215
Semiconductor fuses
fuses
Semiconductor (AC)
Other Protistor
®
Fuses
BS88-4 Fuses
000 BS88 - 500 V to 690 VAC
Total clearing I
2
t
I
2
t (A
2
s)
1.5 ms (0.3 ms)
10 ms (2.5 ms)
8 ms (1.8 ms)
7 ms (1.5 ms)
6 ms (1.3 ms)
5 ms (1 ms)
4 ms (0.8 ms)
10 ms (5 ms)
10 ms (2.5 ms)
8 ms (1.8ms)
6.5 ms (1.5 ms)
6 ms (1.3 ms)
4.5 ms (1 ms)
3.5 ms (0.8 ms)
2.5 ms (0.6 ms)
1.5 ms (0.3 ms)
2 ms (0.4 ms)
1 ms (0.2 ms)
1.5 ms (0.3 ms)
URB
3 ms (0.6 ms)
2 ms (0.4 ms)
10 ms (5 ms)
I
2
t (A
2
s)
1 ms (0.2 ms)
10 6
gRB
10 5
10 5
315 A
250 A
200 A
10 4
125 A
100 A
80 A
63 A
10 4
160 A
150 A
125 A
110 A
100 A
80 A
75 A
10 3
50 A
40 A
32 A
25 A
10 3
10 2
10 3
10 4
10 ms (2.5 ms)
10 ms (5 ms)
10 5
(1.8 ms)
(1.5 ms)
(1.3 ms)
(1 ms)
(0.8 ms)
3 ms (0.6 ms)
2 ms (0.4 ms)
Ip (A)
10 2
20 A
I
2
t (A
2
s)
106
10
102
103
104
105
106
400 A
(@ 500 V)
Ip (A)
Above: Horizontal curves show, for each rated current, maximum
values of total clearing I2t (I2tt) as a function of prospective current
Ip. @ UN with cos
ϕ
= 0.15.
Oblique lines indicate total clearing duration Tt, with associated
pre-arcing duration in brackets.
105
8
7
6
5
4
ms
ms
ms
ms
ms
URB
350 A
104
I
2
t corrective factor
K
1.4
1.2
1
0.8
103
102
103
104
105
Ip (A)
Peak arc voltage
Um (V)
0.6
0.4
0.2
0
0
200
400
500
660
1400
1200
U (V)
1000
800
600
Left: Curve shows peak
value Um of arc voltage
which appears across
fuse-link as a function of
the operating voltage
U @ cos
ϕ
= 0.15
Above: Mean curves show variation of total
clearing time (I
2
tt) and total clearing duration Tt
as a function of operating voltage U.
0
200
400
600
700
U (V)
12/04
SCAC
216
Semiconductor (AC) fuses
Other Protistor
®
Fuses
BS88-4 Fuses
000 BS88 - 500 V to 690 VAC
Semiconductor fuses
DC Application data
1400
1200
1000
800
600
400
200
300
400
500
600
700
0
100
200
300
400
500
600
700
L/R (ms)
100
90
80
70
60
50
40
30
20
10
0
d c b a
Um (V)
L/R =80 ms
L/R =25 ms
L/R =10 ms
0
100
200
U (V)
0
U (V)
Above: curves indicate permissible value of time constant
L/R as a function of DC working voltage.
Curve a: for ratings from 20 to 160 A
Curve b : for ratings from 180 to 200 A
Curve c : for ratings from 250 to 315 A
Curve d : for ratings from 350 to 400 A
Above: Curves indicate peak arc
voltage Um which may appear
across the fuse terminals at wor-
king voltage U.
Rated
current
20
25
32
40
50
63
80
100
125
160
200
250
315
350
400
Curve
a
a
a
a
a
a
a
a
a
a
b
c
c
d
d
Ipm (A)
60
65
90
120
150
200
270
370
500
700
1200
1800
2200
2600
3100
Current limitation curves
I
C
(A)
105
Below: Curves show, for each rating, value of peak let-through
current Ic as a function of available fault current Ip.
Ip
Ipm values give minimum DC inter-
rupting current in amps.
Watts loss
Ip (A)
400 A
350 A
315 A
250 A
200 A
160 A
150 A
125 A
110 A
100 A
80 A
75 A
P/Pn
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
2.
5
Ip
2.
5
=
2
Ic
103
Ic
104
125 A
100 A
80 A
63 A
50 A
40 A
32A
25 A
20 A
=
Ic
=
Ic
=
gRB
Ip
URB
Ip
2
0.5
0.6
0.7
0.8
0.9
1.0
1.1
I/In
102
10
103
104
105
106
10 2
10 3
10 4
10 5
10 6
Time vs current characteristics
t (s)
104
103
102
10
1
10-1
10-2
10-3
10-4
10
12/04
Above: Curve enables computation of
power losses P for a IN-rated fuse as a
function of the R.M.S. current I (as a mul-
tiple of IN for steady state operation)
20
gRB
t (s)
104
103
102
75
80
100
110
125
150
160
200
250
315
350
400
25
32
40
50
63
80
100
125
URB
Left: 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
C
C'
C
C'
a= 130
A2=0.6
B1= 1.25
B2= 0.6
Cf3= 0.8
10
1
10-1
10-2
10-3
10-4
10
SCAC
217
Tolerance
for mean
pre-arcing
current ±
8%.
102
103
104
I (A)
102
103
104
105
I (A)
FPGA/CPLD
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