Semiconductor fuses
Semiconductor (AC) fuses
SCAC202
Other Protistor®Fuses
BS88-4 Fuses
10x28, 17x27 - 250 VAC
12/04
Extremely high breaking capacity fuses:
protection of power semiconductors as per
IEC standard 60269.1 and 4
250 V voltage rating complying with IEC 33
gr class (ratings from 5 to 32 a)
AS PER VDE 636-23 AND IEC 60269.4
aR CLASS (RATINGS FROM 7 to 180 A) COMPLYING WITH
VDE 636-23 AND IEC 60269.4
TWO MODELS COMPLYING WITH BS 88-4
- WITHOUT INDICATOR
- WITH SEPARATE TRIP-INDICATOR (SIZE 17x27)
17x27 URGS are UL Recognized
BRITISH STANDARD
250 VAC - URE - URGS - URZ
From 5 to 180 A
Sizes 10x28 - 17x27
Minimum Operating voltage for separate trip indicator = 20 V
Main Characteristics
Class
URE
URGS
URZ
Current
rating
IN( A )
5
6
10
12
15
20
25
32
7
10
12
16
20
25
30
35
50
60
75
80
100
125
150
160
180
Tested
breaking capacity
160k A
@ 250 V
160k A
@ 250 V
160k A
@ 250 V
Total clearing I2t @ UN
A2sWatts loss
0.8 ININ
0.6
0.7
1.2
1.6
2.0
2.2
2.6
3.0
0.56
0.84
1.1
1.7
2.2
2.7
3.2
3.7
4.9
5.8
7.2
7.25
6.5
6.7
7.4
8.8
9.5
1
1.2
2.1
2.8
3.5
4.0
4.7
5.4
1
1.5
2.0
3.0
3.9
4.8
5.6
6.5
8.8
10.4
13.6
13.7
11.5
12.3
13.6
15.6
17
Pre-arcing
I2t @ 1 ms
I2tp (A2s)
1.3
1.8
2.4
4.3
6.7
15.0
27.0
53.0
1.3
4.5
5.9
11.2
15.6
30.0
45.0
63.0
180.0
250.0
380.0
480.0
730.0
850.0
1250.0
1730.0
2090.0
10
13
18
28
41
85
135
240
8,5
21
27
50
80
130
195
270
7890
1100
1670
2100
3350
5720
7930
9600
14500
11
15
20
33
48
100
160
280
9,8
23,8
31
59
100
160
235
330
940
1310
1990
2530
4060
6920
9590
11700
17500
Ip ≤30INIp > 30IN
Voltage
rating
UN( V )
250V
Size
10 x28
17x27
SCAC203
Semiconductor fuses
Semiconductor (AC) fuses
Other Protistor®Fuses
BS88-4 Fuses
10x28, 17x27 - 250 VAC
12/04
10x28
10
(11g)
2.5 URE 10/5
2.5 URE 10/6
2.5 URE 10/10
2.5 URE 10/12
2.5 URE 10/15
2.5 URE 10/20
2.5 URE 10/25
2.5 URE 10/32
M082489
E097478
L082488
P097487
K082487
J082486
X097494
N081984
Microswitch MC6.3 GR 2-5N Ref: Y301015
**BBS 88 part 4
requires respectively
Ø8.7 and 8.8
Size Designation Ref. Number Catalog NumberPack.
17x27
10
(30g)
2.5 URGS 17/7
2.5 URGS 17/10
2.5 URGS 17/12
2.5 URGS 17/16
2.5 URGS 17/20
2.5 URGS 17/25
2.5 URGS 17/30
2.5 URGS 17/35
2.5 URGS 17/50
2.5 URGS 17/60
2.5 URGS 17/75
2.5 URGS 17/80
2.5 URZ 17/100
2.5 URZ 17/125
2.5 URZ 17/150
2.5 URZ 17/160
2.5 URZ 17/180
M076647
N076648
P076649
Q076650
L097507
R076651
S076652
T076653
V076654
W076655
X076656
Z085559
Y085558
G097526
W085556
H097527
N097532
Size Designation Ref. Number Catalog NumberPack.
17x27
10
(40g)
2.5 URGS 17P7
2.5 URGS 17P10
2.5 URGS 17P12
2.5 URGS 17P16
2.5 URGS 17P20
2.5 URGS 17P25
2.5 URGS 17P30
2.5 URGS 17P35
2.5 URGS 17P50
2.5 URGS 17P60
2.5 URGS 17P75
2.5 URGS 17P80
2.5 URZ 17P100
2.5 URZ 17P125
2.5 URZ 17P150
2.5 URZ 17P160
2.5 URZ 17P180
P097533
Q097534
S097536
X097540
B097544
D097546
E097547
F097548
J097551
H081082
K097552
L097553
P097556
Q097557
R097558
S097559
T097560
BS17US25V7P
BS17US25V10P
BS17US25V12P
BS17US25V16P
BS17US25V20P
BS17US25V25P
BS17US25V30P
BS17US25V35P
BS17US25V50P
BS17US25V60P
BS17US25V75P
BS17US25V80P
BS17UZ25V100P
BS17UZ25V125P
BS17UZ25V150P
BS17UZ25V160P
BS17UZ25V180P
Size Designation Ref. Number Catalog NumberPack.
CP 10x28 - Without trip-indicator
CP 17x27 - Without trip-indicator
CP 17x27 - With separated trip-indicatorBS88-4
BS10UE25V5
BS10UE25V6
BS10UE25V10
BS10UE25V12
BS10UE25V15
BS10UE25V20
BS10UE25V25
BS10UE25V32
BS17US25V7
BS17US25V10
BS17US25V12
BS17US25V16
BS17US25V20
BS17US25V25
BS17US25V30
BS17US25V35
BS17US25V50
BS17US25V60
BS17US25V75
BS17US25V80
BS17UZ25V100
BS17UZ25V125
BS17UZ25V150
BS17UZ25V160
BS17UZ25V180
Semiconductor fuses
Semiconductor (AC) fuses
Other Protistor®Fuses
BS88-4 Fuses
10x28, 17x27 - 250 VAC
Electrical characteristics
Corrective
factor
URE
URE
URGS
URZ
Times vs current characteristics
Corrective factor - Peak arc voltage
* These curves indicate, for each rated current,
the pearcing time vs. the R.M.S. pre-arcing current.
* The mean curves show the variation of the total
clearing time (I2tt) and the total clearing duration tt
as a function of operating voltage U
* Tolerance for the mean pre-arcing current ± 10%
URGS URZ
SCAC204 12/04
Peak arc
voltage
This curve show the peak value Um of the arc voltage
which appears across the fuse link as a function of the
operating voltage U @ cos ϕ = 0.15.
SCAC205
Semiconductor fuses
Semiconductor (AC) fuses
Other Protistor®Fuses
BS88-4 Fuses
10x28, 17x27 - 250 VAC
12/04
D.C Applications data
• These curve indicate the permissible
value of time constant L/R as a function
of the D.C. working voltage.
• These Ipm values give the minimum
DC interrupting current in amps.
URE
URGS
URZ
40
50
55
80
100
130
175
255
40
190
250
300
330
400
5
6
10
12
15
20
25
32
7
100
125
150
160
180
5
5
5
5
5
5
5
5
5
4
3
2
2
1
Class Rated current *
Curves # and Ipm for each rating
Ipm(A)
for URGS class fuses, consult us.
