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The new US standard UL 62368-1:2025 has been officially released, and the compliance interpretation of audio and video equipment
Time：
2025-09-08
The safety specification standard for audio, video, information and communication technology equipment (AV/ICT) in the United States, UL 62368-1:2025, has been officially released.
The American standard UL 62368-1:2025 (Fourth Edition) was officially released on July 31, 2025, and was adopted as an American National Standard by the American National Standards Institute (ANSI) on the same day. The release of UL 62368-1:2025 marks a new phase in the safety regulations for audio, video, information, and communication technology equipment (AV/ICT) in the United States.
Compared to the old version UL 62368-1:2019/R: 2021, the new version UL 62368-1:2025 has the following major updates:
1. We no longer accept components/parts certified according to traditional standards IEC 60950-1 (IT equipment) or IEC 60065 (audio and video equipment). Manufacturers of components/parts that rely on traditional standard certification need to urgently review the BOM list, and it is expected that there will still be many components/parts that need to be re certified or replaced by each manufacturer;
2. Updated the structural requirements for button batteries and added UL 4200A (including safety standards for button battery products) requirements;
3. Updated the relevant tables for external circuit requirements, revised the definition of external circuit classification to correspond to standard IEC TR 62102, and also made revisions and corrections to the overvoltage values of different categories of external circuits;
4. Updated the requirements for fireproof shell openings, mainly correcting the size requirements for side openings;
5. The requirements for wireless charging foreign object testing have been updated, clarifying that the center position of the wireless charging and charged product coils should be aligned or assisted in aligning before testing, and adding two testing states: Part A (power on first and then discharge foreign object) and Part B (power on first and then discharge foreign object);
6. For the safety protection fuse resistor in the product, it has been added that the fuse resistor must comply with the requirements of IEC 60127-8;
7. Updated the requirements for liquid cooling components, and developed new requirements for leak detection, fluid compatibility, pressure release, etc. for modular liquid cooling systems (LFC) with a capacity exceeding 1 liter. Suitable for advanced cooling scenarios such as AI servers and high-performance computing devices;
8. A large number of requirements for rechargeable lithium batteries have been updated. New mandatory requirements have been added for fixed lithium battery systems, covering non portable equipment such as backup power sources and large energy storage devices in data centers. For batteries with segmented parameters, clearly add segmented testing, etc;
9. For equipment with mesh/grid structure, equipment using breathable materials, and equipment covered with foam/fabric, fire spread test caused by external heat source shall be added.
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