Semiconductor fuses
Semiconductor (AC) fuses
SCAC218
Other Protistor®Fuses
BS88-4 Fuses
000, 2.000 BS88Z - 690 VAC
12/04
Voltage
rating
UN( V )
690
Size
000
2.000
Class
gRB
URC
URD
URC
URD
Current
rating
IN( A )
50
65
75
85
90
110
150
180
200
250
280
175
200
235
300
325
355
400
450
500
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
730
1500
2500
3300
4200
8900
16000
31500
52000
82000
82000
16800
25000
35600
64000
92400
126000
208000
210000
328000
Pre-arcing
I2t @ 1 ms
I2tp(A2s)
102
210
390
540
690
1300
2700
5250
9900
15500
15500
2760
3800
5200
10800
15400
21000
39600
40000
62000
Watts loss
0.8 ININ
7.7
8.8
9.4
10.5
13.2
13.8
14.3
14.9
15.4
17.6
23.7
18.2
20.4
24.2
28.6
29.1
29.7
30.8
33
35.2
14
16
17
19
24
25
26
27
28
32
43
33
37
44
52
53
54
56
60
64
Minimum operating voltage for separate trip-indicator: 20 V
EXTREMELY HIGH BREAKING CAPACITY FUSES: PROTECTION OF
POWER SEMICONDUCTORS AS PER IEC STANDARD 60269.1 AND 4
690 V VOLTAGE RATING (RATINGS 50 TO 500 A)
gR CLASS (gRB RATINGS 50 AND 65 A) COMPLYING WITH
VDE 636-23
- CLEARING ALL OVERLOADS
- IMPROVED SAFETY AND PROTECTION
- ENABLING SELECTIVE COORDINATION WITH ALL FUSES
aR CLASS (URC AND URD RATINGS 75 TO 500 A) ACCORDING
TO VDE 636-23 AND IEC 60269.4
FOUR MODELS: SINGLE AND TWIN BODY AS PER
BS 88-4 STANDARD ; Z2 DRAWING (92 mm BETWEEN AXES)
WITHOUT BLOWN FUSE INDICATOR - WITH SEPARATE TRIP-INDICA-
TOR
These fuses are UL Recognized
Total clearing
I2t @ 660 V
I2tt(A2s)
Main Characteristics
SCAC219
Semiconductor fuses
Semiconductor (AC) fuses
Other Protistor®Fuses
BS88-4 Fuses
000, 2.000 BS88Z - 690 VAC
12/04
Weight: 140 g
Packaging: 3 pieces
Weight: 150 g
Packaging: 3 pieces
50
25
10,3
85
113
17.3
43
3
36
27
50
85
113
1.5
10,3
17,3
25
36
Weight: 280 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.
Weight: 290 g
Packaging: 3 pieces
90
110
150
180
200
250
280
6,9 URC 000 BS88ZP090
6,9 URC 000 BS88ZP110
6,9 URC 000 BS88ZP150
6,9 URC 000 BS88ZP180
6,9 URD 000 BS88ZP200
6,9 URD 000 BS88ZP250
6,9 URC 000 BS88ZP280
G330148
H330149
J330150
K330151
L330152
M330153
N330154
BZ000UC69V90P
BZ000UC69V110P
BZ000UC69V150P
BZ000UC69V180P
BZ000UD69V200P
BZ000UD69V250P
BZ000UC69V280P
Current rating Designation Ref. Number Catalog Number
175
200
235
300
325
355
400
450
500
6,9 URC 2000 BS88ZP175
6,9 URC 2000 BS88ZP200
6,9 URC 2000 BS88ZP235
6,9 URC 2000 BS88ZP300
6,9 URC 2000 BS88ZP325
6,9 URC 2000 BS88ZP355
6,9 URD 2000 BS88ZP400
6,9 URC 2000 BS88ZP450
6,9 URD 2000 BS88ZP500
Z330164
A330165
B330166
C330167
D330168
E330169
F330170
G330171
H330172
BZ2000UC69V175P
BZ2000UC69V200P
BZ2000UC69V235P
BZ2000UC69V300P
BZ2000UC69V325P
BZ2000UC69V355P
BZ2000UD69V400P
BZ2000UC69V450P
BZ2000UD69V500P
British standard without blown fuse indicator
British standard with separate trip-indicator
50
65
75
85
90
110
150
180
200
250
280
6,9 gRB 000 BS88Z/050
6,9 gRB 000 BS88Z/065
6,9 URC 000 BS88Z/075
6,9 URC 000 BS88Z/085
6,9 URC 000 BS88Z/090
6,9 URC 000 BS88Z/110
6,9 URC 000 BS88Z/150
6,9 URC 000 BS88Z/180
6,9 URD 000 BS88Z/200
6,9 URD 000 BS88Z/250
6,9 URC 000 BS88Z/280
V330137
W330138
X330139
Y330140
Z330141
A330142
B330143
C330144
D330145
E330146
F330147
BZ000GB69V50
BZ000GB69V65
BZ000UC69V75
BZ000UC69V85
BZ000UC69V90
BZ000UC69V110
BZ000UC69V150
BZ000UC69V180
BZ000UD69V200
BZ000UD69V250
BZ000UC69V280
Current rating Designation Ref. Number Catalog Number
175
200
235
300
325
355
400
450
500
6,9 URC 2000 BS88Z/175
6,9 URC 2000 BS88Z/200
6,9 URC 2000 BS88Z/235
6,9 URC 2000 BS88Z/300
6,9 URC 2000 BS88Z/325
6,9 URC 2000 BS88Z/355
6,9 URD 2000 BS88Z/400
6,9 URC 2000 BS88Z/450
6,9 URD 2000 BS88Z/500
P330155
Q330156
R330157
S330158
T330159
V330160
W330161
X330162
Y330163
BZ2000UC69V175
BZ2000UC69V200
BZ2000UC69V235
BZ2000UC69V300
BZ2000UC69V325
BZ2000UC69V355
BZ2000UD69V400
BZ2000UC69V450
BZ2000UD69V500
220
Semiconductor fuses
Semiconductor (AC) fuses
Other Protistor®Fuses
BS88-4 Fuses
000, 2.000 BS88Z - 690 VAC
12/04
Total clearing I2t
105
104
103
102
10 6
10 5
10 4
10 3
Above and right: 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 asso-
ciated pre-arcing duration in brackets.
102103104105 106
106
105
104
103
102103104105
10 210 310 410 5
Ip (A)
I2t (A2s)
10 ms (5 ms)
10 ms (2.5 ms)
7.5 ms (1.8 ms)
6.5 ms (1.5 ms)
5.5 ms (1.3 ms)
4.5 ms (1 ms)
3.5 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)
65 A
50 A
Ip (A)
I2t (A2s)
250-280 A
200 A
180 A
150 A
110 A
90 A
85 A
75 A
Ip (A)
I2t (A2s)
I2t corrective factor
Peak arc voltage
0 200 400 500 660
Left: Mean curve
shows variation of
total clearing time
(I2tt) and total
clearing duration
Tt as a function of
operating voltage
U.
Left: Curve shows peak
value Um of the arc
voltage which appears
across fuse-link as
a function of operating
voltage U @ cos ϕ= 0.15
U (V)
K
1.4
1.2
1
0.8
0.6
0.4
0.2
0
gRB
URC (000)
URD (000)
URC (2000)
URD (2000)
10 ms (5 ms)
10 ms (2.5 ms)
7.5 ms (1.8 ms)
6.5 ms (1.5 ms)
5.5 ms (1.3 ms)
4.5 ms (1 ms)
3.5 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)
500 A
400-450 A
355 A
325 A
300 A
235 A
200 A
175 A
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
Left: Curve enables com-
putation of power losses
P for IN-rated fuse as a
function of R.M.S. cur-
rent I (as a multiple of IN
for steady state opera-
tion)
Watts loss
P/Pn
I/In
10 ms (5 ms)
10 ms (2.5 ms)
7.5 ms (1.8 ms)
6.5 ms (1.5 ms)
5.5 ms (1.3 ms)
4.5 ms (1 ms)
3.5 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)
0 200 400 600 700 U (V)
Um (V)
1400
1200
1000
800
600
SCAC221
Semiconductor fuses
Semiconductor (AC) fuses
Other Protistor®Fuses
BS88-4 Fuses
000, 2.000 BS88Z - 690 VAC
12/04
a
b
c
DC Application data
0
100
200
300
400
500
600
700
0
100
200
300
400
500
600
700
100
90
80
70
60
50
40
30
20
10
0
1400
1200
1000
800
600
400
200
0
Above: Curves indicate permissible value of time cons-
tant L/R as a function of DC working voltage.
Curve a: Ratings from 175 to 300 A
Curve b: Rating 325 A
Curve c: Ratings from 355 to 500 A
U (V) U (V)
L/R =80 ms
L/R =25 ms
L/R =10 ms
L/R (ms) Um (V)
Above: Curves indicate peak arc voltage
Um which may appear across fuse termi-
nals at working voltage U.
t (s)
Time vs current characteristics
10 102103104
10 4
10 3
10 2
10
1
10 -1
10 -2
10 -3
10 -4
Left: Curves indicate,
for each rated current,
pre-arcing time vs.
R.M.S. pre-arcing cur-
rent
Tolerance for mean
pre-arcing current ±
8%.
gRB
a=130
A2=0.6
B1=1.25
B2=0.6
Cf3=0.8
URC-URD
a=130
A2=0.67
B1=1.25
B2=0.67
Cf3=0.85
t (s)
104
103
102
10
1
10-1
10-2
10-3
10-4
a= 130
A2=0.67
B1= 1.25
B2= 0.67
Cf3= 0.8
50 65
75 85
90 110
150 180
200
250-280
175 200
235 300
325 355
400-450
500
105
104
103
102
Current limitation curves
102103104105106
102103104105106
Ip (A)
I
C
(A)
65 A
50 A
250-280A
200 A
180 A
150 A
110 A
90 A
85 A
75 A
Ic =
2 Ip
Ic =
2.5 Ip
Ic =
2 Ip
Ic =
2.5 Ip
I (A) I (A)
Below: Curves indicate, for each rating value of peak let-through current Ic as a function of available fault
current Ip.
Ipm values give minimum
DC interrupting current in amps.
Rated
current
50
65
75
85
90
110
150
180
200
250
280
175
200
235
300
325
355
400
450
500
a
a
a
a
a
a
a
b
c
c
c
a
a
a
a
b
b
c
c
c
150
200
270
350
370
500
700
1200
1800
2200
2200
740
870
1000
1400
1900
2400
3600
4400
4400
Curve Ipm (A)
gRB
URC
URD
URC (2000)
URD (2000)
gRB-URC (000)
URD (000)
102103104105106
500 A
400-450 A
355 A
325 A
300 A
235 A
200 A
175 A
Ic =
2 Ip
Ic =
2.5 Ip
URC
URD
102103104 105
(T000) (T: 2000)
