The new IEC 61439 lays down the definitions and states the service conditions, construction requirements, technical characteristics as well as verification requirements and will replace the IEC 60439 series.

The IEC 61439 Standard is structured as follows:

IEC 61439-0: Low-voltage switchgear and controlgear assemblies - Part 0: Guide to specifying assemblies

IEC 61439-1: Low-voltage switchgear and controlgear assemblies - Part 1: General rules

IEC 61439-2: Low-voltage switchgear and controlgear assemblies - Part 2: Power switchgear and controlgear assemblies

IEC 61439-3: Low-voltage switchgear and controlgear assemblies - Part 3: Distribution boards intended to be operated by ordinary persons (DBO)

Note: Not yet published. See IEC 60439-3

IEC 61439-4: Low-voltage switchgear and controlgear assemblies - Part 4: Assemblies for construction sites (ACS)
Note: Not yet published. See IEC 60439-4

IEC 61439-5: Low-voltage switchgear and controlgear assemblies - Part 5: Assemblies for power distribution in public networks
Note: Not yet published. See IEC 60439-5

IEC 61439-6: Low-voltage switchgear and controlgear assemblies - Part 6: Busbar trunking systems (busways)
Note: Not yet published.