Acti9 STI

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.

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