Sef Power

SEF Power is a manufacturer of power solutions (AC/DC power supplies, DC/DC converters and UPS) for the defense, aeronautics and railway markets. Its design and production teams develop solutions meeting the most demanding markets in France. SEF Power is a France Relance 2022 winner and EN9100 certified. CNB Electronique and SDS High Voltage, also specialists in the design and production of converters for the defense, nuclear and medical sectors, are sister companies of SEF Power. SEF Power, CNB Electronique and SDS High Voltage belong to the Altes group.