Products in compliance with major international standards

The solid state relays and contactors made by celduc® are manufactured in compliance with major international standards:

  • IEC/EN 60947-4-2 (2012-10) for motor control
  • IEC/EN 60947-4-3 (2014-08) for other loads
  • IEC/EN 60335-1 – VDE0700-1 (2013-05)
  • IEC/EN 62314 (2006-05)
  • IEC/EN 63000 (2018-12)
  • EN 60947-1 : 2007 + A1 (2011) + A2 (2014)
  • North American and Canadian certifications (UL, cUL, CSA)



EU Declaration of conformity

Our EU declaration of conformity is available to be downloaded on our e-shop in each related product pages.

UL, cUL, UL SCCR certifications

To access our UL listed products, please refer to Product iQ, the database to access UL Certification information (you will need to create a free account).

On April 1, 2015, our power Solid State Relays passed the 100kA UL SCCR > 5KA test with success, in compliance with the UL 508 supplement SB standard.

VDE certification

celduc® relais fulfils the requirements for the VDE certification.



Several of our products fulfil the requirements for KOSHA (S-MARK) certification. Contact us for more information.



Our Solid State Relays satisfy the requirements for EAC certification (For The Customs Union in Russia, Kazakhstan and Belarus).


ISO 9001

Our relay manufacturing process complies with ISO 9001, namely the 2015 version. Our products contain extremely reliable components with a very high level of electromagnetic interference. They therefore have the longest product lifetime on the market. Click here to see our ISO 9001 certificate valid until 19/06/2026.


Over the last few years, at celduc® relais, we have acquired greater expertise in and made improvements to our ATEX products, in particular sensors and relays for ATEX-specific applications.
celduc® relais is a notified manufacturer of ATEX products: notification number INERIS 04ATEXQ406 and it offers a wide range of ATEX sensors.


Requirements for railway applications

All of our okpac® SO relays (as well as SC relays), celpac® 2G SU/SA relays (including the ESUC current sensor modules) and also the 2-phase SOB and 3-phase SGT relays comply with the EN 61373 European standard for railways: shock and vibration tests on relays.
The following standards relating to fire behaviour and fumes are classified, please contact us for more information. These standards are: NF F16-101, NF F16-102, EN 45545 and EN 60695-2-10/11/12 (Glow Wire tests (GWFI – GWIT)), blue and black plastic covers and encapsulating resin of SO and SU/SA relays.