IEC 61439-1:2020 lays down the general definitions and service conditions, construction requirements, technical characteristics and verification requirements for low-voltage switchgear and control-gear assemblies. 

This KEMA Labs White Paper intends to give you an overview of the most important changes of the third edition when compared with the Edition 2 (2011-08) about essential and test-relevant changes.

You can read the White Paper attached below: