Making energy safe.

Protection relays from SEG Electronics
Protect what you value.

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NEW: Redundant Ethernet

SEG HighPROTEC Line – now with Redundant Ethernet.

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Who we are

Our Mission, Vision and History.
Protect what you value.

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Your career at SEG

Your opportunities with SEG.

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SEG Portfolio

Our portfolio of easy to operate, robust and reliable protection relays can be used for the electrical protection of generators, transformers, motors, cables and overhead lines, as well as busbars. Whether standardized products or customer-specific developments – the solutions provided by our great team have been top of class all over the world for more than 50 years. Protect what you value.

SEG Products

Protection Relays for all applications

HighPROTEC Line
WI Line
HighTECH Line
Professional Line
Basic Line
Accessories

Short ordering codes, commissioning support features, 
flexible hardware. Outstanding solution for reliable protection.

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No auxiliary power needed. The WIC1 relays harvest the required supply energy from the current measurement signals.

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A versatile range of protection functions for low to high voltage levels, 
with modular design, intuitive operation, and easy integration into SCADA systems

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Essential protection for low and medium voltage applications
with easy configuration via DIP switches, universal AC/DC power supply.

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Easy configuration, precise voltage supervision, and simple operation at a competitive price for low voltage applications.

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Optimize your SEG experience with high-quality accessories, designed to enhance the performance of your protection relays.

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Meet the SEG Team

Curious minds

Sebastian, Maria, Daniel, Rebecca, Richard, Massimo, Rainer, Thomas, Ronny, Jens, Jörg, Monika, Martin, Tim, Yannik, Stefan, Nicola, Oliver, Ram, Petra, Nader, Mirko, Kirsten, Romain, Nicola, Kerelos, Brenda, Dave, Julian, David...


Great people that seriously love their work...
SEG News
25/2/2025
Poland

SEG at “Rebuild Ukraine”

At the 4th "ReBuild Ukraine Construction and Energy" exhibition in Warsaw, key industry and government leaders gathered to discuss strategies for restoring Ukraine’s infrastructure and energy sectors. SEG’s team engaged in productive discussions at an inspiring event with 557 exhibitors from 28 countries, paving the way for Ukraine’s recovery.

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25/2/2025
Egypt

SEG at Egypt Energy 2024

SEG Electronics made a strong impact at Egypt Energy 2024 in Cairo, with Kerelos Youssef engaging global stakeholders in discussions on the latest protection relay innovations and energy solutions. The event set the stage for future participation, including at Middle East Energy in Dubai 2025.

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25/2/2025
Saudi Arabia

SEG at the Saudi Arabia Smart Grid Conference "SASG 2024"

SEG attended a prestigious energy event in Riyadh (Dec 16-18), where Kerelos Youssef showcased new intelligent protection relays and engaged in productive discussions on cutting-edge energy solutions.

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25/2/2025
Germany

15 Years of Excellence: Honoring Stephan Krämer

SEG celebrated Quality Manager Stephan Krämer for 15 years of outstanding service and invaluable expertise at SEG. His dedication and warm personality have made a lasting impact on the company.

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25/2/2025
India

SEG Electronics at ELECRAMA 2025 in India

SEG wrapped up an exciting first day at a leading electronics trade fair, showcasing new HighPROTEC and WIC features. Visit booth H11-B98B until February 26th for more details.

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“Curiosity drives our actions and serves as the catalyst for transformation. We avoid stagnation by passionately developing innovative, reliable products. That’s how we power and lead the change to a sustainable future and make tomorrows Energy safe.”

Daniel Nickerl, Managing Director
SEG History

1969

600 million energized people watched one of the greatest events in human history on television: the moon landing. Similarly, for SEG Electronics, an exciting journey into a successful future began with a small step in a garage in Krefeld: its founding as “Schaltanlagen-Elektronikgeräte GmbH.” Discover here how the story continued.

what our customers say:

The new WIC g2 protection relay from SEG is the successor to the successful WIC1 relays, which we started using in our Xiria, the compact Air GIS Ring Main Unit, since it’s introduction in 2002. This self powered relay now provides great additional options to comply with today’s digital demands.

Sezar Atakay, Front End Lead Application Engineer & Coordinator

An easy and short-term 1:1 replacement in existing projects ran absolutely smoothly, and the functionality compared to Generation 1 has also been extensively expanded.

Holger Lauer, Offer Management

The WIC1 g2 protection relay from SEG is very user-friendly, compact, and reliable.

Joerg Sandler, Master of Power Supply and Cable Networks

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Jose Rossano,
Sales Manager

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Thomas Hafermann,
Senior Customer
Account Manager

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Brenda Brown,
Global Strategic
Account Manager, Americas

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Kerelos Youssef,
Customer Account Manager

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Jens Schürmanns,
Customer Account Manager

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Thomas Schütt
Customer Account Manager

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Ram Ravi
Customer Account Manager

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Massimo Citzia
Sales Support Engineer

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Ronny Stelter,
Technical Support Engineer

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Thomas Angenvoort
Sales Support Engineer

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Get in Touch

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Your Career at SEG

Would you like to become a part of the SEG Electronics family? Please check our open positions. We SEG is in the midst of an exciting transformation. We have already successfully developed the company in recent years and want to continue this positive growth. We are still SEG — but we also want to reinvent ourselves, challenge ourselves, to open up spaces and develop new concepts that make an impact.

That‘s why we are looking for great people who want to help us shape the intelligent energy supply of tomorrow. Please check our open positions, we look forward to receiving your application.