Apator 63-811750-061 RBK 1 Pro SD-M 60 Fuse Switch Disconnector 250A NH1

The Apator RBK 1 Pro SD-M 60 (article 63-811750-061) is a three-pole HRC fuse switch-disconnector for NH1 (size 1) fuse links, rated 250 A at up to 690 V AC, for installation onto a 60 mm busbar system. It is operated manually by a front rotary lever.

In Apator’s designation "S" = busbar-system mounting, "D" = bottom (down) cable terminal, "M" = screw terminals, "60" = 60 mm busbar system. There is no safety-door interlock and it is not motorised.

• Operation: manual front rotary lever (not motorised)
• Fuse size: NH1 (size 1)
• Rated thermal current Ith: 250 A
• Rated voltage Un: up to 690 V AC
• Mounting: 60 mm busbar system, bottom (D) cable terminal
• Terminals: screw terminals for conductors with lug terminals
• Rated short-circuit withstand/making current: 80 kA at 690 V, 100 kA at 400 V
• Rated insulation voltage Ui: 1000 V
• Rated impulse withstand voltage Uimp: 8 kV
• Degree of protection: IP20
• Housing: glass-fibre reinforced polyamide (flammability class V0); silver-plated contacts; steel arc-chamber deionization plates
• Standards: EN 60947-1, EN 60947-3, IEC 60947-1, IEC 60947-3