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Overvoltage protection devices

Seamless and safe

Every year, several hundred thousand cases of damage from lightning strikes and overvoltages are reported in Germany alone, with resulting costs in the multi-million euro range. Play it safe – with overvoltage protection devices from our SENTRON portfolio! These devices are part of a comprehensive protection concept for electrical installations, and reliably prevent damage from  overvoltage.

Find the overvoltage protection devices to fit your needs.
Siemens Industry Mall
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5SD7 lightning arresters, type 1

5SD7 lightning arresters, type 1

  • Protects low-voltage systems against overvoltage and high currents triggered by direct or indirect lightning strikes
  • Enclosed lightning arresters suitable for installation upstream of the meter
  • All design variants fitted with remote signaling contact
  • Suitable for installation in main distribution boards, upstream or downstream of the meter

 

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5SD7 combination surge arresters, type 1 and type 2

5SD7 combination surge arresters, type 1 and type 2

  • Protects low-voltage systems against overvoltage and high currents triggered by direct lightning strikes 
  • Thermal isolating arrester disconnector offers a high level of protection against overload
  • All design variants fitted with remote signaling contact
  • Suitable for installation in main distribution boards downstream of the meter

 

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5SD7 combination arrester, type 1 and 2

5SD7 combination arrester, type 1 and 2

  • Compact designs that can be used as both lightning arrester (type 1) as well as surge arrester (type 2)
  • Protects low-voltage systems against overvoltage triggered by lightning strikes or grid switching operations
  • Thermal isolating arrester disconnector offers a high level of protection against overload
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5SD7 surge arresters, type 2