Fuse-carrier disconnector

carrier furnace fuse link

Part of 9 Series

Acti9 STI is a range of fuse-carriers disconnectors for applications requiring high breaking capacityContact Sales

Features

Acti9 STI isolatable fuse-carriers provide overload and short-circuit protection:

  • They are used for industrial applications requiring a high breaking capacity
  • They perform the disconnector function and must not be used as switches (Utilization category: AC-20)
  • They can be equipped with an indicator light indicating blowing of the fuse cartridge
  • They meet IEC/EN 60947-3 standard requirements
  • Disconnection of all poles is guaranteed for the 2P, 3P, and 3P+N versions during factory assembly.

Fuse cartridges:

  • STI can use both gG and aM fuse cartridges without striker
  • gG fuses: used to provide both overload and short-circuit protection
  • aM fuses: used to provide only short-circuit protection of loads with high peak current such as motors, transformers primaries, etc.)
  • Available in both 8.5 x 31.5 mm and 10.3 x 38 mm diameters
  • Fuse cartridges meet IEC/EN 60269-1/2 (NFC 60-200).

Accessories:

  • Comb busbar:
    • used to quickly bridge several STI of the same kind
  • Busbar connectors:
    • Used to supply the busbar
    • For 25 mm2 cable
  • 230 V neon indicator light
    • Indicates fuse blowing (off in normal operation and lit red after fuse blowing)
    • 400 V maxi
  • Padlocking device
    •  Locks the toggle in the “open” or “closed” position. Used with an 8 mm max. diameter padlock (not supplied)
  • Clip-on markers (C60 type): used to identify:
    • either on the front face of the device or on the downstream terminals.

Benefits

  • Captive fuse cartridge compartment makes it impossible to lose fuse cartridge
  • Additional compartment for replacement fuse cartridge.

Gallery

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