British Standard High-Speed Fuse-Links AC Protection
Protistor® BS88-4 size 10x51 aR (URE) 690VAC
Extremely high breaking capacity fuses: Protection of power semiconductors as per IEC standard 60269-1 and -4 690V voltage rating as per IEC 33 gR class as per VDE 636-23 and IEC 60269.4 Design without indicator.