British Standards Document
BS EN 61439-4
Low-voltage switchgear and controlgear assemblies. Particular requirements for assemblies for construction sites (ACS)

https://doi.org/10.3403/30218814U

BS EN 61439-4 is maintained by PEL/121/2. The current release of this standard is:

BS EN 61439-4:2013 Low-voltage switchgear and controlgear assemblies. Particular requirements for assemblies for construction sites (ACS)

https://doi.org/10.3403/30218814 (published 31/03/2013)

This standard is available from the following sources:

Other historical versions of this standard document also exist: