current transformers type JOF

Our wide range of products insulated with oil-paper or SF6 offers our customers an optimal choice of high-quality instrument transformers with a long lifetime.

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current transformers type JKS-S

This range of products covers standardized resin casted current and voltage transformers in block design up to 72 kV as well as cable current transformers. All products meet the specifications for various indoor and outdoor applications in power stations and power distribution systems.

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current transformers type TSC

Instrument transformers for low voltage applications are produced according national and international standards. The current and voltage transformers can be calibrated for different countries and delivered with the corresponding certificate.

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true values


We believe in Switzerland and Germany as locations that are centres of excellence for development and production, and the manufacturing facilities in Turkey and Brazil for the local markets. We are convinced that sincerity, innovation and performance are the building blocks for lasting success.

We take our responsibility as an employer and industrial enterprise seriously – our success is based on committed staff. We offer good working conditions and expect high levels of motivation from our employees. These features set us apart and form the basis of our partnership relationships with customers and suppliers.

With the "IEC 106 Award", the International Electrotechnical Commission IEC honors persons who have rendered outstanding services in the technical or organizational field of a current standardization project. Of the 16,000 standard experts working in the IEC worldwide, only 150 are awarded annually. Very gratifying is the conferring of the award in the year 2017 to three authorities in this field from Switzerland, ambassadors for distinguished achievements in the field of international standardization. The awards were presented on 15 November 2017 by CES Vice President and Electrosuisse CEO Markus Burger. Beat Bertschi receives the award for his successful collaboration as Chairman of the Maintenance Team TC38 / MT40, which has developed the document IEC TR 61869-100. This is the manual for the use of current transformers in network protection applications. Beat Bertschi brought new aspects into the document, which significantly improve the understanding of the various definitions of the protective current transformers.

Congratulations for the successfully finish apprenticeship

We wish our young professionals good luck and success for the future!

(from left to right: Colin Gerber, Kaufmann / Dan Hunziker, Konstrukteur / Noe Gregorio, Automatiker / David Pfenniger, Automatiker)

From a small enterprise to a global player

PFIFFNER celebrates its 90th anniversary

90 years of eventful company history. The year 2017 was dominated by our anniversary. In 1927 Emil Pfiffner bought the factory building in Hirschthal and founded his own company. Over the past 90 years, despite the economic and currency crises, the company has continiously grown and developed. Today, the Pfiffner Holding AG forms the holding company of the group of companies.

What we stand for

Many years of experience, comprehensive expertise, international market presence and the desire to continuously develop our products; these aspects make us an efficient and solution-orientated partner.