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SEG Electronics GmbH develops, manufactures and distributes robust and reliable protection relays for Power Generation and Power Distribution applications. Since May 2020 SEG is a member of the international Aurelius Group.

With more than 50 years of experience in high, medium, and low voltage applications, the company offers a broad portfolio of protection relays used for the electrical protection of generators, transformers, motors, cables and overhead lines as well as busbars. Development and testing of all electronic devices comply with the relevant international standards and regulations like the IEC 60255.

As a developer and producer of high-quality products made in Germany and a technical leader in the field of specialized products, SEG serves customers worldwide.

MAS is SEG’s business partner in Greece, Cyprus and the rest of the Balkans.


  • Albania
  • Azerbaijan
  • Belarus
  • Bosnia Herzegovina
  • Cyprus
  • Greece
  • Kazakhstan
  • Kosovo
  • Kyrgyzstan
  • Moldova
  • Montenegro
  • Romania
  • Russia
  • Servia
  • Tajikistan
  • Ukraine
  • Uzbekistan