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About the Electrical Appliance and Material Safety Act (PSE)
On this page, we provide an easy-to-understand explanation of the Electrical Appliance and Material Safety Act (PSE) as it applies to AC/DC Power Adapter and switching power supplies. With many years of experience and a proven track record, UNIFIVE possesses extensive knowledge of PSE and can առաջարկ Products that ensure customer peace of mind.
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What is the Electrical Appliance and Material Safety Act (PSE)?
The Electrical Appliance and Material Safety Act (PSE) is a law that came into effect in April 2001, replacing the former Electrical Appliance Control Act. Among electrical Products used in ordinary households, stores, offices, etc., those designated by cabinet order (electrical appliances and materials) cannot be sold unless they bear the PSE mark indicating conformity with the technical standards set by the government, as well as the business operator's name, rated voltage, rated power consumption, and other required labeling.
If dangerous Products without these markings are found on the market, the government may order manufacturers and other related parties to take measures such as product recalls. Regulated items are required to conduct self-confirmation of compliance with technical standards. Among them, items that pose a particularly high risk of danger or hazard are designated as Specified Electrical Appliances and Materials and are subject to mandatory conformity inspections by a third-party organization.
| Category | Description |
|---|---|
| Specified Electrical Appliances and Materials | Items that pose a particularly high risk of danger or hazard. Conformity inspection by a third-party organization (Registered Conformity Assessment Body) is required. Diamond-shaped PSE mark. |
| Non-Specified Electrical Appliances and Materials | Electrical appliances and materials other than the above. Confirmation of compliance with technical standards through self-inspection. Circular PSE mark. |
AC/DC Power Adapter
The AC adapters we handle are classified as Specified Electrical Appliances and Materials "DC power supply" under the Electrical Appliance and Material Safety Act. Therefore, they undergo conformity assessment by a third-party organization (Registered Conformity Assessment Body) and are sold with the diamond-shaped PSE mark displayed.
Difference Between Extension Cord Sets and AC/DC Power Adapter-Integrated Products
Even electrical products that look similar are classified under different "Electrical Product Names" in the PSE system depending on their intended use, and the applicable technical standards also differ. Based on information published by the Ministry of Economy, Trade and Industry, we explain the differences between extension cord sets (multi-taps) and AC/DC Power Adapter-integrated Products.
Extension Cord Set (Multi-Tap)
Wiring devices used to connect electricity from a wall outlet to electrical appliances located at a distance are generally called table taps or multi-taps, but under the PSE electrical product name, they are classified as "Extension Cord Sets." Products that add an equipment plug to a multi-tap are also treated as an "Extension Cord Set" as a whole.
PSE classification: Electrical product category "Wiring Devices" / Electrical product name "Extension Cord Set"
Multi-Tap with USB Port = DC Power Supply
Products that add a USB port to a multi-tap for charging smartphones are classified under PSE as a "DC Power Supply." This is the same category as the AC/DC Power Adapter we provide.
PSE classification: Electrical product category "AC Electrical Appliances and Materials" / Electrical product name "DC Power Supply"
| Products | PSE Classification |
|---|---|
| Multi-tap (outlets only) | Wiring Devices / Extension Cord Set |
| Multi-tap + Equipment Plug | Wiring Devices / Extension Cord Set |
| Multi-tap + USB Port | AC Electrical Appliances and Materials / DC Power Supply |
| AC/DC Power Adapter | AC Electrical Appliances and Materials / DC Power Supply |
Important for Importers: Importers who import electrical products from overseas are required under the Electrical Appliance and Material Safety Act to ensure that their Products comply with PSE technical standards.
Reference: Public Information from the Ministry of Economy, Trade and Industry
Detailed information about the above electrical appliance classifications is provided in the following materials published by the Ministry of Economy, Trade and Industry.
- Extension cord set with attachment plug for equipment (METI PDF)
- Handling of extension cord sets with built-in AC/DC Power Adapter (METI PDF)
Our PSE-Compliant Products
We have many years of experience and a proven track record in obtaining PSE certification under the Electrical Appliance and Material Safety Act. If you are looking for PSE-compliant AC/DC Power Adapter and switching power supplies, you can find our Products on the page below.
Related Pages
For more details about our compliance with safety standards and our quality control system, please also see the pages below.
Our Commitment to Quality:
Our Commitment to Quality (Top Page) / Compliance with Global Safety Standards / Our AC/DC Power Adapter Quality Control System / RoHS2 Compliance