International Electrotechnical Commission <br/><br/>
IEC: 61439-4(Ed-1.0)-2012-11; Low-voltage switchgear and controlgear assemblies - part 4; particular requirements for assemblies for construction sites (ACS) 

 - 1.0 
 - Geneva  IEC  2012 
 - 58 
<br/><br/> Downloaded from IEC website 
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