800 V DC Distribution in Data Centers: Scope Limitations of IEC 62368-1

As artificial intelligence (AI) applications continue to drive higher power demand, manufacturers of data-center infrastructure are actively exploring solutions to address these requirements. An 800 V DC distribution architecture is increasingly considered one of the viable near-term approaches.

Manufacturers of power-supply units (PSUs) and DC/DC converters are therefore facing new challenges related to safety certification. The most commonly used safety standard for products in data-center environments is IEC 62368-1, which applies to audio/video, information and communication technology equipment. However, IEC 62368-1 is limited to equipment with a rated voltage not exceeding 600 V; therefore, equipment with an 800 V DC rated input or distribution interface falls outside its scope.

As a result, manufacturers are looking for alternative standards. One such option is IEC 62477-1, which covers power electronic converter systems and equipment and applies to rated system voltages up to 1 000 V AC or 1 500 V DC.

SIQ Ljubljana is accredited for both of the above-mentioned standards and participates in the IECEE CB Scheme. We can support certification of products with power ratings up to 400 kW. In addition to safety approvals, we also provide EMC and environmental testing services. Furthermore, we support short-circuit current testing in cooperation with our partner laboratories.

More information:
Boštjan Glavič
E-mail: bostjan.glavic@siq.si
Tel.: +386 1 4778 265