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Quality and our warranty

10-year warranty

We guarantee the robustness of our relays, even in tough conditions. Almost all our relays come with a 10-year warranty that covers the cost of a faulty relay and delivery costs. The only requirements are that the relay has been properly chosen and used. In the event of a warranty claim, we will investigate the cause of the failure of the relay. You will find individual warranty details for each product on the product data sheet.


100 % performance

The reliability of Delcon relays comes from careful design. Manufacturing guided by our quality system produces relays of consistent quality, with each one going through several testing stages.

Read more about the high quality of Delcon relays

Delcon has an ISO 9001:2008 certified quality system.

Approvals and certifications

Our I/O relays fulfil the requirements of the EMC Directive (2004/108/EC). Exceptions are stated in the product specifications, which are updated as necessary.

Our I/O relays and mounting bases also fulfil the requirements of the Low Voltage Directive (2006/95/EC).

UL certificate: E162828

Class I, Division 2, Groups A, B, C, D
Class I, Zone 2, IIC
UL-certificate: E332493


II 3 G Ex nA IIC Gc
Certificate: DEMKO 13 ATEX 1041005U
Declaration of conformity:


Ex nA IIC Gc
Certificate: IECEx ULD 13.0006U
See: (select Certificates & Lic., select View Certificates & Licences, select Certified Equipment, Free text search: delcon).

Certificate for Russian, Armenian, Kazakhstan and Belarussian market: EAC certificate