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IEC 60439-4 Ed. 1.2 b:1999 - Low-voltage switchgear and controlgear assemblies - Part 4: Particular requirements for assemblies for construction sites (ACS)
Quadri elettrici: il 1° novembre sarà abrogata la EN 60439-1 e sostituita da EN 61439-1 e 61439-2 - Certifico Srl
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