• Power supply companies.
  • Power stations.
  • Cement industry.
  • Automotive industry.
  • Iron and steel works.
  • Windmills.
  • Mining industry.
  • Textile, paper and food industries.
  • Chemical industry.
  • Petroleum industry.
  • Pipeline installations.
  • Offshore installations.
  • Electrochemical plants.
  • Petrochemical plants.
  • Shipbuilding industry.
  • Diesel power plants.
  • Emergency power supply installations.
  • Lignite open-castmines.
  • Traction power supply systems.


PLS is an SF6-insulated pole mounted switch disconnector designed for overhead line installations up to 40.5kV 630A/1250A.
This outdoor switch disconnector is suitable for both remote control and manual operation with excellent load breaking and fault making capacity.
The tank fulfills the requirement of “sealed pressure system” meaning that there is no need to add gas during its expected lifetime.
The moving contact rotation with double swiching guarantee high dielectric strength during normal operation.

Construction Characteristics

The stainless steel tank is particularly suitable for providing protection against the extremes of heat, snow, corrosion, moisture and salt in the most demanding climatic conditions.
PLS is easy to install due to its reduced dimensions and weight and it is almost maintenance free.

Technical Data

Main Characteristics
Insulation Voltage Up to 40.5 kV
Rated Frequancy 50 – 60 Hz
Rated Short time withstand current Ik Up to 25 kA 12Kv
Up to 21 kA 17.5Kv
Up to 20 kA 40.5Kv
Rated duration of short circuit tk 1 – 3 s
Degree of protection on front face Indoor : IP 54