Ferraz shawmut protistor fuse FR27UQ69V50T N075958

EXTREMELY HIGH IBREAKING CAPACITY FUSES:
PROTECTION OF POWER SEMI CONDUCTORS ACCORDING TO
IEC STANDARD 60269.1 AND 4
690 V – 1000 V AC VOLTAGE RATING
aR-CLASS ACCORDING TO VDE 636-23 AND IEC 60269.4
690V URQ and 1000V URB are UL RECOGNIZED