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Siège social

  • Adresse :
    ZA La Chapelle
  • Téléphone :
    +33 (0)4 75 87 12 46
  • Site internet :
  • Email :

Secteurs d'activités

  • Manufacture of electrical equipment

Informations financières et juridiques

  • Actionnaire :
    Fangier Familly
  • Forme juridique :
  • Capital en € :
    € 1 592 000
  • CA global 2013 en € : 5 491 200
  • Effectifs ferroviaires : 180

Descriptif / Historique

The CEFEM TECHNOLOGIES group, and its subsdiary CEFEM INDUSTRIES, was created in 1987 by Georges Fangier to supply components and systems that enter into complex electrical equipment. Progressively, the company integrated more and more "powerful electronics", capable of modulating energy for next generation applications.

After becoming an expert in energy conversion, in 1999 CEFEM TECHNOLOGIES took over the "visible break switch" side of the powerful FERRAZ company. In this way, the company acquired expertise in energy separation. In 2005, the buy-out of the Grenoble company ASB (Atelier Spécial Bobinage) and the setting-up of a production unit in Romania gave CEFEM ROMANIA new advantages : an expanded range of transformers and improved competitiveness. CEFEM was able to progressively prove itself in the fields of energy conversion systems, heavy industry and the environment.

The environment is a strong value at CEFEM TECHNOLOGIES. In 2009, the group opened its subsidiary CEFEM SOLAR SYSTEMS and moved into solar energy with the launch of a new range of three phase inverters.

CEFEM INDUSTRIES has made the choice to retain a production unit in France next to its research offices, to guarantee performance and quality at every stage : traceability for raw materials, the development of prototypes and pre-series, quality of assembly, performance control on finished products and management of deadlines.

The CEFEM plant in Romania contributes to the group's competitiveness. It is ideally located and responds to the growing demand from the countries of the new, larger Europe. Production management is flexible and reactive, allowing the CEFEM TECHNOLOGIES group to deliver any kind of quantity from the smallest to the largest series.


  • Magnetic components and film capacitors
  • Description :
    Mid-frequency power components: All these products are developed to measure for our customers and manufactured in the new factory in Ardèche (2012). The products, from a few VA to 250kVA, are sized for electrical frequency signals that can reach, depending on the applications, 40kHz for rail, 120kHz for UPS and renewable energy.

    "Boige & Vignal" more powerful magnetic components: these products are held in high regard on railway and industrial markets, and they are also developed and manufactured to specification and manufactured at the historic Boige et Vignal site in Lyon For power of up to 500kVA, the components are in low frequency. Since they are for use on trains, the mechanical design is studied. In fact, an engineer is specially dedicated to this and our industrial tools allows us to manufacture magnetic components weighing up to 2 tons.

    Film capacitors: developed and manufactured at the factory in Châteauroux (2 hours south of Paris).These products can be standardised with a catalogue range or developed to specifications. Our industrial tool allows us to wind all films, in combination with our experience, meaning that Cefem Power masters capacitors from just a few volts up to 100,000 V. To sum up, we are specialists in small to medium-sized series adapted to specific customer needs.

    Regardless of the range of products, our goal is always to find the best technical/economic balance for our customers.