Our History
A Legacy of Innovation and Excellence
From our humble beginnings to becoming a global leader in energy protection solutions, we have consistently delivered high-quality products that help safeguard critical infrastructure. Our commitment to innovation, reliability, and customer satisfaction has made us a trusted partner for businesses worldwide. Explore our journey, and see how SEG continues to shape the future of energy protection.
1969
Foundation of SEG
SEG was founded as Schaltanlagen-Elektronikgeräte GmbH in Krefeld (Germany).
Already in the 1970s, a dedicated team was working at SEG.
Product leaflet from the early days of the company.
1974
Move to Kempen
To meet increasing customer demand, SEG moved to a larger plant in Kempen, Germany.
1985
AvK Acquisition
SEG merges with generator manufacturer AvK® to form AvK|SEG.
1988
First self-powered relay
The innovation of the first self-powered relay WI1-3 is disrupting the market of Ring Main Units and sets a first milestone towards smart grids.
1990
First numerical multi-function
With HighTech Line the first numerical multi-function relay product line is introduced into the market.
1994
Professional line
SEG introduces the Professional Line – a product range of relays that are easy to configure. The ability to set-up a relay without tools or software coins the phrase that SEG is “Commissioner’s Best Friend”.
2001
Acquisition by Cummins
AvK SEG and NEWAGE merge to form a joint group of companies (newage-avkseg). The portfolio ranges from protection devices to converters for wind turbines and synchronous generators under the ownership of CUMMINS.
2006
Acquisition by Woodward
SEG becomes a member of energy and aerospace specialist Woodward Inc. gaining access to a worldwide distribution network and a large base of OEM customers.
2008
HIGHPROTEC Productline
The HighPROTEC multifunction device series meets the highest protection requirements. All required protection functions are included in the individual devices. The focus of the device development is on simple, intuitive operation.
2020
Acquisition by Aurelius
As a member of the Aurelius Group, SEG once again becomes an independent brand and can now react much more agilely to the dynamics in the energy market.
2022
Next generation WIC self-powered relays
With the introduction of the new WIC line, SEG introduces the next generation of self-powered relays which are unbeatable in speed. With the DiggiMEC, the WICs can easily be operated on-site, as the display visualizes measuring values and allows programming of the relay.
