CCNNPURRE has published on the Official Journal this October 27th, 2017, the maximum limits of electric power in non-load or vacuum mode, the test methods for its evaluation, and the specifications of the minimum information to be marked of external Power Supply Units.

This regulation applies to all external PSUs designed to convert the AC line voltage to a single DC voltage level at a time, with a maximum output power less than or equal to 250 W. It is determined physically by design and is independent of the product. The unit may feature a switch that allows the user to manually select between different output voltage levels.

This new NOM will take effect on April 25th, 2018. From that date, all External PSUs categorized into three types—USB Output Power, Low Voltage Output, and Generic Output Voltage—will be required to comply with the technical requirements, marking, and labeling established in the regulation.