International Standards and Conformity Assessment for all electrical, electronic and related technologies



Reference EN 61558-2-26:2013
Title Safety of transformers, reactors, power supply units and combinations thereof - Part 2-26: Particular requirements and tests for transformers and power supply units for saving energy and other purposes
Project Number 23532
Abstract/Scope IEC 61558-2-26:2013 deals with the safety of transformers, power supply units and switch mode power supply units all for saving energy and other purposes in electrical installations by adjusting the output voltage and/or other electrical characteristics on the output circuits without interruption affected by the transformers, power supply unit and switch mode power supply unit. The attention of National Committees is drawn to the fact that equipment manufacturers and testing organizations may need a transitional period following publication of a new, amended or revised IEC publication in which to make products in accordance with the new requirements and to equip them for conducting new or revised tests. It is the recommendation of the committee that the content of this publication be adopted for implementation nationally not earlier than 12 months from the date of publication.


Current Stage code 6060
Current Stage code date 2013-09-06
Current Stage code deadline 2014-05-14
Deadline date for vote  


Directive(s) LVD (2006/95/EC)
Order Voucher  


IEC Technical Body IEC/TC 96
Reference Document IEC 61558-2-26:2013 (EQV)
ICS 29.180 - Transformers. Reactors
Keywords Transformers; Reactors; Power supply; Saving
Note To be read in conjunction with EN 61558-1:2005*2013-07-19: Publication allocated to
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2013-09-06 2014-05-14 export to doc file  EN  FR  DE
5099 2013-08-14 2013-09-11  
5060 2013-06-10 2013-07-01 export to doc file  EN
5020 2013-04-05 2013-06-07  
3090 2011-11-25 2012-05-31  
5060 2011-10-10 2011-10-31 export to doc file  EN
5020 2011-05-06 2011-10-07  
1090 2011-05-03 2011-05-06  

Implementation Dates

date of Ratification (DOR) (1) 2013-08-14
date of Availability (DAV) (2) 2013-09-06
date of Announcement (DOA) (3) 2013-11-14
date of Publication (DOP) (4) 2014-05-14
date of Withdrawal (DOW) (5) 2016-08-14


Superseded by  
Normative reference (6) EN 61558-1:2005
corr. August 2006
EN 61558-2-13
EN 61558-2-14
EN 61558-2-16

(1) Date of ratification (dor) date when the Technical Board notes the approval of an EN (and HD for CENELEC), from which time the standard may be said to be approved

(2) Date of availability (dav) date when the definitive text in the official language versions of an approved CEN/CENELEC publication is distributed by the Central Secretariat

(3) Date of announcement (doa) latest date by which the existence of an EN (and HD for CENELEC), a TS or a CWA has to be announced at national level

(4) Date of publication (dop) latest date by which an EN has to be implemented at national level by publication of an identical national standard or by endorsement

(5) Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn

(6) This list of normative references is purely indicative. The only official list of normative reference is the list of the published standard.