Page 26 - Ferraz semiconductor BS88

Semiconductor fuses
Semiconductor (AC) fuses

®
Other Protistor Fuses
BS88-4 Fuses
000, 2.000 BS88Z - 690 VAC

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

Main Characteristics

Voltage Current Pre-arcing Total clearing Tested Estimated
2
2
rating Size Class rating I t @ 1 ms I t @ 660 V Watts loss Breaking capacity Breaking
2
2
2
2
U ( V ) I ( A ) I t (A s) I t (A s) 0.8 I N I N capacity
t
p
N
N
50 102 730 7.7 14
gRB
65 210 1500 8.8 16
75 390 2500 9.4 17
85 540 3300 10.5 19
90 690 4200 13.2 24 200 k A 300 k A
000 URC 110 1300 8900 13.8 25 @ 690 V
150 2700 16000 14.3 26 @ 690 V
URD 180 5250 31500 14.9 27
200 9900 52000 15.4 28
690 250 15500 82000 17.6 32
280 15500 82000 23.7 43
175 2760 16800 18.2 33
200 3800 25000 20.4 37
235 5200 35600 24.2 44
URC 300 10800 64000 28.6 52 300 k A
2.000 325 15400 92400 29.1 53 200 k A
URD @ 690 V @ 690 V
355 21000 126000 29.7 54
400 39600 208000 30.8 56
450 40000 210000 33 60
500 62000 328000 35.2 64
Minimum operating voltage for separate trip-indicator: 20 V
SCAC218 12/04