The is the law that governs electrical appliance safety in

Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...

. PSE stands for Product Safety Electrical Appliance & Material. The formal name is . The most recent revision comes April 1, 2001. The PSE symbol can be found on appliances that are approved for use in Japan. DENAN is a mandatory

national law A central government is the government that is a controlling power over a unitary state. Another distinct but sovereign political entity is a federal government, which may have distinct powers at various levels of government, authorized or deleg ...

administered by Japan's

Ministry of Economy, Trade and Industry The , METI for short, is a ministry of the Government of Japan. It was created by the 2001 Central Government Reform when the Ministry of International Trade and Industry (MITI) merged with agencies from other ministries related to economic acti ...

(METI), which was formerly called the Electrical Appliance and Material Control Law (“DENTORI”). For electrical appliances such as DC Power Supplies exported to Japan, the DENAN “DENAN symbol” approval is required.

AC/DC AC/DC are an Australian rock band formed in Sydney in 1973. Their music has been variously described as hard rock, blues rock and Heavy metal music, heavy metal, although the band calls it simply "rock and roll". They are cited as a formativ ...

power supplies are considered a "Category A" product with means they are specified products and require a diamond PSE Mark for use in Japan. These specified electrical appliances are either required to undergo third-party conformity assessment, and obtain their certificate, or obtain “the equivalent of a certificate” through the manufacturers of the specified electrical appliances concerned. The Notifying Supplier (importer) is responsible for ensuring that the product is tested in accordance with the requirements by a RCAB (or “Registered Conformity Assessment Body”). PSE rated power supplies are characterized by classes and ratings ranges rather than specific model numbers.PSE approved power supply
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