SPHEREA Test & Services designs and produces customized test solutions and maintenance services for safety critical electronic systems. Our solutions and services cover the entire life cycle of control‑command and safety electronic systems electronic systems, from design and valdidation phase to operations and long-term support. As historical supplier in Aerospace and Defense industries for more than 50 years, SPHEREA has expanded ist activities to other high safety critical industries like the Nuclear Energy sector. Leveraging its expertise in the sustainability of critical systems, SPHEREA is now supplying a range of low‑voltage protection relays for nuclear power plants. SPHEREA’s customers notably include EDF, ORANO, COMECA, RTE, and Schneider Electric.