International Electrotechnical Commission <br/><br/>
IEC: 60947-5-1-2016; Low-voltage switchgear and controlgear Part5-1; Control circuit devices and switching elements-electromechanical control circuit devices 

 - Geneva  International Electrotechnical Commission  2016 
 - 214+4 
<br/><br/> Taken printout from cd 
<br/><br/><label>Universal Decimal Class. No.: </label> /