Above all, being an expert means analysing your needs and developing customised solutions for you.
We combine group strength with SME flexibility.
With nearly 200 full-time employees in 4 countries on 3 continents, the Groupe celduc® and its subsidiaries celduc® transfo and celduc® relais is a leading player in the global market for industrial automation, magnetic proximity sensors and power transformers.
At celduc® relais, we are the experts in solid state relays and magnetic sensors, and every year, we are proud to manufacture more than 1 million relays which are sold worldwide, helping to promote French industrial expertise and “100% made in France” quality.
D‑U‑N‑S® Number : 382274546
Sales department France :
+33 (0) 4 77 53 90 20
Export sales department :
+33 (0) 4 77 53 90 21
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Gender Equality Index 2026
Based on 2025 data
Final result: 88/100 (for more information)
