1. What is the 3C certification standard for switch power supplies?

The 3C certification standard for switch power supplies is mainly based on the national standard GB4943, and the main tests include temperature, safety distance, and abnormal temperature.

2. Why do switch power supplies need 3C certification?

1. 3C certification is a mandatory certification in China, implemented by the Chinese government to protect consumer safety and national security, strengthen product quality management, and assess product compliance according to laws and regulations. The so-called 3C certification refers to the China Compulsory Certification system, abbreviated as CCC, with the 3C certification mark.

2. 3C is a product compliance assessment system implemented by the Chinese government in accordance with relevant agreements of the World Trade Organization and international practices to protect the safety of consumers and the lives of animals and plants, as well as to protect the environment and national security.

3. However, it is important to emphasize that not all products require 3C certification. There is a catalog of products that require 3C certification, and any product within this catalog must undergo 3C certification to be sold domestically; products not listed in the 3C certification catalog do not need to be certified.

4. Switch power supplies are included in the 3C certification catalog, therefore, switch power supplies need to undergo 3C certification to be sold domestically.

2. The following materials are required for 3C certification of switch power supplies:

1. 3C certification application form

2. Applicant's registration proof

3. Product structure diagram, circuit schematic, explosion diagram, etc.

4. List of key components

5. Product nameplate (electronic version)

6. Product port images

7. Product appearance images (indicating nameplate location)

8. Chinese product manual (electronic version)

9. Whether it is sold with wire components (default is sold with wire components; if not, a declaration must be provided, a template can be referenced)

10. Product difference declaration (must be provided for each model)

11. Model comparison table between both parties (must be provided for ODM model applications)