Parts of IEC 61439 series
IEC 61439-1 General rules
IEC 61439-2 Power switchgear and control gear ASSEMBLIES
(Replacing IEC 60439-1)
IEC 61439-3 Distribution boards (to supersede IEC 60439-3)
IEC 61439-4 ASSEMBLIES for construction sites
(to supersede IEC 60439-4)
IEC 61439-5 ASSEMBLIES for power distribution
(to supersede IEC 60439-5)
IEC 61439-6 Busbar trunking systems
(to supersede IEC 60439-2)
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