Ecodesign status: Final regulation

Labelling status: Coming products

548/2014: Distribution and power transformers

Last updated: 03 October 2017

Consultation Forum for the revision of requirements för power transformers will be held 31 October 2017.



The scope of the adopted ecodesign requirements includes small, medium and large power transformers with a minimum power rating of 1 kVA used in 50Hz electricity transmission and distribution networks or for industrial applications.


Examples of products excluded from the scope are:

  • instrument transformers,
  • traction transformers on rolling stock,
  • starting transformers and testing transformers.


Proposed ecodesign requirements are specified in Annex I of the regulation and will be introduced in two tiers: 2015 and 2021.

Minimum energy performance and energy efficiency requirements (Peak Efficiency Index) and product information requirements are also specified in Annex I.

Date Process Key documents
2017-10-31 Consultation Forum

Working document (doc)
Annex (docx)

2016-09 Preparatory study for the revision of regulation 548/2014 launched

Preparatory study website

2014-05 Final regulation published in the OJ

Final regulation (pdf)


Final report (pdf)
Project report (pdf)


Archived documents (zip)