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Medium voltage surge arresters

Surge arresters are used for protection of electrical equipment from all kind of overvoltages caused by lightening or switching operations. Hitachi Energy has more than 100 years of experience in designing and manufacturing surge arresters and protection devices.

Hitachi Energy surge arresters are made of metal-oxide (MO) resistors without spark gaps directly molded in silicone housing, in grey color, and designed and tested according to IEC 60099-4 and IEC 62848-1.

Surge protection for a wide range of applications

  • AC / DC Railway networks
  • MV AIS & GIS switchgear
  • Transformers
  • Cable system protection
  • Distribution networks

Special offering

  • Spark prevention unit for distribution surge arrester
  • Voltage limiting device (Hybrid voltage limiter) for DC traction networks
  • Surge monitoring solutions

Our offering

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