Current
Mechanical & Electrical Supplement
BS EN
Gives requirements for assemblies for which the rated voltage does not exceed 1 000 V in case of a.c. or 1 500 V in case of d.c. Where the nominal primary voltage and the nominal secondary voltage of transformers incorporated in ACS are within the limits specified above. Assemblies intended for use on construction sites, both indoors and outdoors. Also for transportable (semi-fixed) or mobile assemblies with enclosure.
Supersedes BS EN 60439-4:2004. Also known as IEC 61439-4:2012.
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