EU – Power Supply Ecodesign Requirements

The European Commission is revising the ecodesign requirements for external power supplies, including broadening the scope to cover external power supplies that produce more than one output voltage. Once finalized, the regulation will replace the existing Commission Regulation (EC) No 278/2009 for ecodesign of external power supplies.  The current draft suggests a transition date for the new requirements starting April 1, 2020.

The proposed regulation specifies requirements for no-load power consumption, average active efficiency, and various information requirements. The energy efficiency requirements are segmented into the following four categories:

  • AC-AC external power supplies, except low voltage and multiple voltage output external power supplies
  • AC-DC external power supplies, except low voltage and multiple voltage output external power supplies
  • Low voltage external power supplies
  • Multiple voltage output external power supplies

The no-load power consumption requirements are summarized in Table 4 and the average active efficiency in Table 5 (unofficial). For official information, please see the draft regulation.

Table 4: no-load condition power consumption

 AC-AC external power supplies, except low voltage and multiple voltage output external power supplies AC-DC external power supplies, except low voltage and multiple voltage output external power supplies Low voltage external power supplies Multiple voltage output external power supplies
PO ≤ 49,0 W0,210 W0,100 W0,100 W0,300 W
PO > 49,0 W0,210 W0,210 W0,210 W0,300 W

Table 5: average active efficiency

 AC-AC external power supplies, except low voltage and multiple voltage output external power supplies AC-DC external power supplies, except low voltage and multiple voltage output external power supplies Low voltage external power supplies Multiple voltage output external power supplies
PO ≤ 1,0 W0,5 ∙ PO + 0,1600,5 ∙ PO + 0,1600,517 ∙ PO + 0,0870,497 ∙ PO + 0,067
1 W < PO ≤ 49,0 W0,071 ∙ ln(PO) – 0,0014 ∙ PO + 0,670,071 ∙ ln(PO) – 0,0014 ∙ PO + 0,670,0834 ∙ ln(PO) – 0,0014 ∙ Po + 0,6090,075 ∙ ln(PO) + 0,561
PO > 49,0 W0,8800,8800,8700,860

Information that needs to be included in the instruction manual and/or website includes:

  • Nameplate output power (W)
  • Root mean square (Rms) input voltage (V)
  • Input AC frequency
  • Rms output voltage (V)
  • Rms output current (mA)
  • Average active efficiency
  • Efficiency at low load (10%)
  • No-load power consumption (W)