Medium Voltage Indoor Applications
Our medium voltage arresters are used for protection of medium voltage networks and devices against overvoltage caused by lightning and switching surges.
Specially developed indoor medium voltage arresters are particularly suitable for the protection of transformers, switchgear and cable terminations in closed spaces.
These arresters are available with different connectors and can be customized to adjust to a given space.
Surge arresters with silicone insulated cable for connection to SF6 facilities are also available on request.
We look forward to your request!
|Product||SBK-0||SBK-0 isol. cable|
|Highest System Voltage Us||kV||52||52|
|max. Rated Voltage Ur||kV||51||51|
|max. Nominal Discharge Current In (at 8/20 µs waveshape)||kA||10||10|
|max. Thermal Energy Absorption Capability kJ per kV of Ur||2,8||2,8|
|max. Line Discharge Class||1||1|
|High Current Withstand Strength 4/10 µs||kA||100||100|
|max. low Current Withstand Strength 2 ms||A||250||250|
|max. Short Circuit / Pressure Relief Capability kA - 0,2s||kA||20||20|
|Mechanical Strength: Specific short-term load SSL||Nm||230||230|
- Siemens AG, Germany
- Ritter Starkstromtechnik, Germany
- Tamin Tablo Eshtehard Co., Iran
- SGB USA Inc., USA
- Lockwell Electrical Distributors, UK
- 1378(1478)_SB BF-II_LK4_EnDe_2020-04.pdf SB size II, up to 468 kV, 9.2kJ/kV, class 4