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Acti 9 STI

Fuse-carrier disconnector

Acti 9 STI is a range of fuse-carriers disconnectors for applications requiring high breaking capacity

Acti 9 STI
  • Functies

    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


    Voordelen

    • captive fuse cartridge compartment makes it impossible to lose fuse cartridge
    • additional compartment for replacement fuse cartridge