Pfiffner Group; Current and voltage

PFIFFNER Group is a leading worldwide provider of electrical power engineering products and technical solutions.

The PFIFFNER Group operates several brands: PFIFFNER, MOSER GLASER, HAEFELY, and HAVECO. The brands are well-known on the market and have pioneered several technologies over the last decades.

Our solutions and services add value to our customers’ assets by providing functions such as measuring, metering, protecting, or transferring electric energy safely and reliably from A to B.

PFIFFNER Instrument Transformers

A leading provider of high-quality, competitive products for all current and voltage transformers and resistive capacitive voltage dividers since 1927.

MOSER GLASER

A pioneer in solid insulation since 1914, this factory is a leading manufacturer of busbar systems and bushings for utility and industrial customers.

HAEFELY

Founded by pioneer Emil Haefely in 1904, it is an industry-leading supplier of cutting-edge solutions in high voltage testing, instrumentation and EMC technology.

HAVECO

An established brand in the Swiss energy services sector since 2012, this company is active in energy and grid services for customers in the electricity industry, electric railroads, and industry.

PFIFFNER Switchgear

PFIFFNER Switchgear, known for reliable & durable AIS disconnectors, enhanced by our new SF6-free Circuit Breakers

PFIFFNER Germany

Founded in 2010, this factory designs and produces gas-insulated instrument transformers for high-voltage applications.

PFIFFNER Turkey

Established in 2004, this factory manufactures cast resin voltage transformers up to 40.5 kV and oil-filled current & capacitive voltage transformers up to 550 kV.

PFIFFNER Brazil

Established in 2006, this plant supports the small, up to the biggest energy facilities spread across Brazil and MERCOSUL. In addition, it has been an integral supplier for high voltage instrument transformers.

Reliable Power System

Transmission and Distribution Equipment

Testing of Transmission and Distribution Equipment

Maintaining existing Power Systems

Grid Enforcement and Optimization

Power Quality

Safe Power Transmission and Distribution

Energy Storage Systems

Customized solutions

For customized solutions
you are welcome to contact us.
We will be glad to advise you!

CONTACT

From idea to part in hours: how 3D printing accelerates innovation at HAEFELY

17. March 2026 –

Innovation at HAEFELY does not only happen in high-voltage laboratories. It also happens in how we design and manufacture the small components that bring our test systems to life.

Pfiffner Group Acquires "Electrical Switches & Connectors" Business from Rauscher & Stoecklin (R&S) Group

18. December 2025 –

Strengthening Portfolio and Market Presence

CWIEME Berlin

19. till 21. May 2026

A stronger future for transformers: together we forge unbreakable links in the energy chain.

Our customers' challenging requirements and our ambition to represent state-of-the-art products with high quality and reliability lead us to our mission: "Current and voltage - our passion".

Fritz Hunziker

Entrepreneur & Chairman of the board

Current and Voltage - our passion