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IEC outdoor switch disconnectors ONIII

ONIII switches disconnect unloaded electrical circuits in outdoor AC substations, rated voltage 24 and 36 kV, rated current 400-2000 A

Product scope

The ONIII three-phase disconnectors, available also as a one-phase device (ONI), are designed for closing and opening unloaded electrical circuits in outdoor AC substations. In the open position, disconnectors form a visible and safe isolating distance, which cuts the circuit from the voltage on the outflow side..

Key benefits

  • Simple design and service
  • High mechanical duration and electrical endurance
  • Operates in both vertical and horizontal position
  • Integrated earth switches are intended for shorting and earthing previously disconnected electrical networks

Key features

  • Rated at up to 36 kV, up to  2000 A
  • Manual or motor operated
  • Large range of variants   

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