IEC <br/><br/>
IEC: 60947-3(Ed-3.0)-2012-02(Amendment 1); Low-Voltage Switchgear and Controlgear - part 3: Switches, Disconnectors,Switch- Disconnectors and Fuse-Combination Units 

 - 3.0 
 - Geneva  IEC  2012 
 - 21p 
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