Pure and Simple Technology
As an agile company in the field of grid protection technology and automation, we focus on innovative solutions and maximum reliability for energy supply grids worldwide.
Since its foundation in 1999, NSE AG has stood for excellence and innovation in grid protection technology. With our solutions for medium and high-voltage systems, we ensure reliable energy distribution and grid stability.
From 2017 to 2023, we were a divider of the PHOENIX CONTACT Group. Today, as an independent company with Swiss precision and innovative strength, we are successful worldwide.
We develop customized solutions for protection, control and communication systems for medium and high-voltage installations:
Since 1999, NSE AG has stood for technical excellence in protection and control technology. What began as an engineering office is now an established Swiss technology company with solutions for power distribution used worldwide. Our milestones show how experience and a spirit of innovation give rise to future-proof products.
2025
Completion of the renewal of production, thanks to the latest manufacturing technologies and revised processes, the production capacity increases many times over!
2024
25 years of NSE AG – A quarter of a century of leadership in grid protection technology and control systems.
2023
Management buy-out of PHOENIX CONTACT by Annette Aebersold, Andreas Aebersold and Urs Wirth.
2022
Development of the PMP module – specialized in the wind energy sector.
2019
Introduction of POWERSAVE – a high-performance protection unit with integrated power management.
2018
Renewal of KOMBISAVE+ for the latest requirements in grid protection technology.
2017
Takeover by PHOENIX CONTACT.
2014 - 2004
Introduction and continuous further development of protection devices such as DIGISAVE and KOMBISAVE.
2003 - 1999
Surface-mounted production and development of protection technology for medium and high-voltage grids.















Our experienced team, led by Andreas Aebersold , is responsible for innovation, quality and sustainable growth in protection technology.
Dipl. Ing. Urs Wirth
Dipl. Ing. Andreas Aebersold
Dipl. Ing. Urs Wirth
ppa. Rolf Todesco
Dipl. Ing. Urs Wirth
Dipl. Ing. Andreas Aebersold
Certified business economist Annette Aebersold
MAS Product Management Matthias Wegmüller
Albert Turcin
For the successful implementation of our projects, we work together with leading companies that specialize in their respective fields:
[Alphabetical order]
Isoblock Schaltanlagen GmbH & Co KG
Partner for all aspects of medium and low voltage and charging technology.
Find out more at:
MS Elektro GmbH
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I can request information about my stored data at any time and request correction, restriction of processing or deletion. Requests in this regard can be directed to datenschutz@nse.ch or in writing to NSE AG, Bremgarterstrasse 54, 5610 Wohlen.