Page 6 - Ferraz semiconductor BS88

Semiconductor fuses
Semiconductor (AC) fuses

Other Protistor Fuses
®
BS88-4 Fuses
10x28, 17x27 - 250 VAC

BRITISH STANDARD
250 VAC - URE - URGS - URZ

From 5 to 180 A
Sizes 10x28 - 17x27
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

Main Characteristics

Voltage Current Total clearing I 2 t @ U
Pre-arcing N Tested
rating Size Class rating A 2 s Watts loss
U ( V ) I ( A ) I 2 t @ 1 ms breaking capacity
N N I 2 tp (A 2 s) Ip ≤ 30I N Ip > 30I N 0.8 I I
N N
5 1.3 10 11 0.6 1
6 1.8 13 15 0.7 1.2
10 x28 URE 10 2.4 18 20 1.2 2.1 160k A
12 4.3 28 33 1.6 2.8 @ 250 V
15 6.7 41 48 2.0 3.5
20 15.0 85 100 2.2 4.0
25 27.0 135 160 2.6 4.7
32 53.0 240 280 3.0 5.4
7 1.3 8,5 9,8 0.56 1
10 4.5 21 23,8 0.84 1.5
12 5.9 27 31 1.1 2.0
16 11.2 50 59 1.7 3.0
250V 20 15.6 80 100 2.2 3.9
25 30.0 130 160
URGS 2.7 4.8
30 45.0 195 235 3.2 5.6 160k A
35 63.0 270 330 3.7 6.5 @ 250 V
17x27 50 180.0 7890 940 4.9 8.8
60 250.0 1100 1310 5.8 10.4
75 380.0 1670 1990 7.2 13.6
80 480.0 2100 2530 7.25 13.7
100 730.0 3350 4060 6.5 11.5
125 850.0 5720 6920 6.7 12.3
160k A
URZ 150 1250.0 7930 9590 7.4 13.6 @ 250 V
160 1730.0 9600 11700 8.8 15.6
180 2090.0 14500 17500 9.5 17
Minimum Operating voltage for separate trip indicator = 20 V

SCAC202 12/04