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IEC 61439-3:2012 Low-voltage switchgear and 
controlgear assemblies - Part 3: Distribution boards intended to be operated by ordinary persons 
(DBO) reprint) identical) IEC 
 
 
 (distribution boards intended to be operated by ordinary persons; DBO) 
DBO  
-  (  
-  60898
1, 2425, ,  2109  3 
- V a.c.. 
- Inc A InA  DBO 
 A 
  
  
  
DBO  
DBO 
 
DBO  
  DBO DBO DBO DBO DBO DBO V a.c.V a.c.operated by ordinary persons; DBOoperated by ordinary persons; DBOoperated by ordinary persons; DBOoperated by ordinary persons; DBOPart 3: Distribution boards intended to be operated by ordinary persons 
IEC IEC voltage switchgear and voltage switchgear and 
Part 3: Distribution boards intended to be operated by ordinary persons Part 3: Distribution boards intended to be operated by ordinary persons 
IEC IEC 3:2012 Low3:2012 Low--voltage switchgear and voltage switchgear and voltage switchgear and voltage switchgear and 
Part 3: Distribution boards intended to be operated by ordinary persons Part 3: Distribution boards intended to be operated by ordinary persons voltage switchgear and 3 
IEC 312 
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IEC 14393:2012   
 
IEC 14393:2012  . 
 
IEC 14393:2012  . 
 
IEC14393:2012  . 
 
IEC14393:2012  . 
 
IEC14393:2012  . 
 
IEC14393:2012  . 
 
IEC14393:2012  . 
 
IEC14393:2012  . 
 
IEC14393:2012  . 
 
IEC14393:2012  Annex AA 
 IECIEC14391439143914391439143933:20:20:2012  :20:2012  12  ..3 
IEC 6-3:2012 
 © IEC:2012 
IEC 
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IEC 
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to this publication, please contact the address below or your local IEC member National Committee If you have any questions about IEC copyright or have an enquiry about obtaining additional rights utilized in any form or by any means, electronic or mechanical, including photocopying and All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or 
utilized in any form or by any means, electronic or mechanical, including photocopying and utilized in any form or by any means, electronic or mechanical, including photocopying and All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or 
utilized in any form or by any means, electronic or mechanical, including photocopying and All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or 3 
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