Silicone - Solid Core Design

Our arresters with silicone housing in Solid Core Design of the SBK series are available for up to 170 kV.

As for all our arresters with silicone housing we use high quality LSR Silicone, which keeps its hydrophobic and UV-resistant/non ageing properties over the complete service life and ensures excellent artificial pollution performance.  

Because of their modular design our SBK arresters in Solid Core Design can be easily manufactured adapting to variable lengths, creepage distances and clearances in accordance with customer requirements. Due to their very low weight they are an ideal solution for application as transmission line arresters in addition to their use as station arresters.

Our Products

Technical Data

Product   SBK
* higher ratings for line
arrester applications (TLA) available on request
Highest System Voltage Us KV kV 170*
max. Rated Voltage Ur kV kV 150*
max. Nominal Discharge Current In (at 8/20 µs waveshape) kA kA 10
max. Thermal Energy Absorption Capability kJ per kV of Ur 7
max. Line Discharge Class   3
Qrs (accord. IEC 60099-4 Edt. 3.0)   2,0
High Current Withstand Strength 4/10 µs kA kA 100
max. Low Current Withstand Strength 2 ms A A 1.000
max. Short Circuit / Pressure Relief Capability kA - 0,2s 40
Mechanical Strength: Specific short-term load SSL Nm Nm 500


  • SBK-IV 108/10.2 E.ON, Hungary
  • SBK-I 120/10.2 Savitaipale, Finland
  • 69 kV, Windpark Gargaú, Rio de Janeiro State, Brazil
  • 120 kV, Actom, South Africa