Since its foundation in 1964, the French manufacturer Celduc® considered a specialist in solid-state-relays and contactors. Today Celduc® also focuses on sensors (magnetic proximity switches) and reed switches.

Due to a close customer cooperation and the associated market proximity, Celduc® not only succeeds in developing series-ready products, but also customer-specific products. Constant investments in new developments and research enable innovative products and technical solutions.

The solid-state-relays and sensors from Celduc® are used in applications such as air-conditioning and building technology, automation, as well as in the food and packaging industries. In addition, the products are also used in machines for medicine, in forestry, agriculture and in ATEX protected areas.

All products are developed, tested and manufactured according to the strictest international standards.



Interface relay

2A|12-280VAC|Control 18-32VDC
Celduc®‘s SLIM range is 100% compatible with 5mm pitch electromechanical relays and is designed for most types of loads.

SOBR range
SOBR range
Two-phase Solid State Relays

Always ahead in solid-state control innovation, celduc® relais launches a new range of two phase Solid State Relays in okpac® housing with push-in spring power terminals.

High temperature level sensor

Celduc relais® offers a large range of standard or specific level and flow sensors using Reed switches and has just developed a new high temperature vertical level sensor in stainless steel : UL 1015 wires 105°C.