External Power Supplies

February 3rd 2014

On February 3, 2014 the U.S. Department of Energy (DOE) issued a pre-publication Federal Register final rule prescribing new energy conservation standards for external power supplies. This new standard applies to all direct operation External Power Supplies and includes, in addition to Class A power supplies previously covered by 2007 standards, power supplies that have not previously been subject to DOE regulations, such as multiple-voltage EPSs, EPSs with nameplate output power greater than 250 watts, and some EPSs that charge the battery of a product that is fully or primarily motor operated. Compliance with these standards will go into effect two years after the publication date.