Skip to main content

Leading player for industrial automation

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.

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.

As a distributor for Celduc products, our focus is on consultancy and sales.


  • Relays: high-performance
  • Relays: Reed
  • Relays: soft, start
  • Relays: solid-state
  • Sensors

Industry sectors

Contact partner

Our trained, specialist employees know the requirements of each product as well as their industries and we can therefore offer highly qualified consultancy services, particularly on site through our sales engineers.

Thorsten Rieckmann

Telephone+49 40 523052-24
ProductrangeCelduc, SMC


Celduc Relais Dual Power Solid State Relay

Dual Power Solid State Relay...

Read more

Celduc Relais Celduc - Magnetic proximity sensors for window frames

The proximity sensors are specifically designed to determine the position of the window. This is particularly interesting when it comes to automated…

Read more

Celduc Relais New option for current monitoring: the ESU module

ESUC base is an option available for the celpac® 2G range. This optional module is pluggable directly on SU / SUL Solid State Contactor and…

Read more