24/04/2026
๐ฃ Fischer is now contributing to the ITER Project โ the International Thermonuclear Experimental Reactor being built in southern France โ by supplying custom hermetic connectors and cable solutions engineered for the extreme conditions of nuclear fusion research.
Following Switzerland's re-entry into ITER in January 2026, Fischer Connectors launched the project in collaboration with its French subsidiary near Paris and technology partners across Europe. The work is carried out by Conextivity Group's R&D center in Switzerland.
The connectors being developed include feedthrough connectors โ components designed to pass electrical signals and power through sealed barriers without compromising containment. They must withstand radiation, high pressure, and extreme temperatures while maintaining leak-tight integrity over the long term.
To put the engineering challenge into perspective, the ITER tokamak operates at 150 million degrees Celsius โ ten times hotter than the core of the Sun โ and weighs 23,000 tons.
Hermetic connectivity has been central to Fischer Connectors since its founding, when its founder developed the world's first high-quality sealed connector in 1954, and the first hermetic connector 10 years later. The company has long supplied hermetic connectors to CERN, the European Organisation for Nuclear Research in Geneva, for use in vacuum systems, cryostats, and radiation monitoring devices.
Fischer Connectors has hired specialists dedicated to the ITER project to develop these tailored solutions.
๐ฌ โITER represents a convergence of advanced research, industrial expertise, and long-term vision โ and this environment is well aligned with Fischer Connectorsโ strengths in engineering, research and development, and innovation. ITER is a natural extension of our expertise in hermetic connectivity and our long-standing engagement in demanding scientific and energy applications. It brings together the kind of technical challenges, collaborative environment, and long-term perspective that match our approach to innovation and solution development.โ -- Jonathan Brossard, CEO of the technology group Conextivity to which Fischer Connectors belongs, and Romain Lacroix, General Manager of Fischer Connectors France
๐ท Management of the Conextivity Group during a visit of the ITER construction site in southern France: Jonathan Brossard, CEO of Conextivity Group CEO (center), Romain Lacroix, General Manager of Fischer Connectors France (first on the left, facing the camera)
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