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CE Certified EMC/LVD Testing Standards for Power Adapters
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Update time : 2021-10-09 16:05:44
Power adapters are a type of small portable electronic device and power conversion equipment for electronic appliances. Generally, they are composed of a shell, transformer, inductor, capacitor, control IC, PCB board, and other components. Their working principle is to convert AC input to DC output; according to the connection method, they can be divided into wall-mount and desktop types. They are widely used in security cameras, audio equipment, LED lighting, set-top boxes, routers, light strips, massagers, and other devices.
Power adapters and chargers are indispensable components for modern electronic devices. Their safety and compatibility directly affect user experience and product quality. To ensure the global circulation and use of these products, a series of stringent testing standards have been established internationally.
Among them, CE certification is a "pass" for products to enter the European Union market, ensuring that products comply with EU safety, health, and environmental directives. In particular, the EMC (Electromagnetic Compatibility) and LVD (Low Voltage Directive) standards covered by CE certification are especially crucial.
As a professional manufacturer with fifty years of experience in the power adapter and charger field, YHYadapter deeply understands the importance of global certification. We are committed to providing global customers with power solutions that meet the highest international standards, ensuring our products are safe, reliable, and can smoothly enter markets worldwide.
1. Understanding Power Adapter CE Certification Standards
CE certification standards are not singular; they vary based on the specific application scenarios of power adapters and their matching terminal devices. Here are some main standards for power adapter CE certification:
• EN 62368-1: A new safety standard for information technology equipment and audio/video equipment.
• EN 61347-2-13: Standard for use of power adapters in conjunction with luminaires.
• EN 60335-1: Adapters for household appliances comply with the standard.
• EN 61558-2-7: Power adapters to comply with standards implemented for toy products.
CE certification standard for power adapter (adapter standard for TV, audio and video products).
YHYadapter's products cover a wide range of applications. Whether for IT, AV equipment, household appliances, luminaires, or even toy products, we ensure that our power adapters and chargers meet the corresponding CE certification standards, providing customized compliance solutions.
2. EMC Testing: Ensuring Harmonious Coexistence in the Electromagnetic Environment
2.1 What is EMC?
EMC (Electromagnetic Compatibility) refers to the ability of electronic equipment to function normally in an electromagnetic environment without causing intolerable electromagnetic interference to other devices in that environment. For
power adapters and chargers, EMC testing primarily focuses on two aspects:
• Electromagnetic Interference (EMI): This measures the electromagnetic noise generated by the power adapter during operation. It ensures that the adapter does not emit excessive interference that could affect the normal operation of other nearby electronic devices (such as radios, televisions, or sensitive equipment).
• Electromagnetic Susceptibility (EMS): This assesses the power adapter's ability to resist external electromagnetic interference. It ensures that the adapter continues to operate normally when exposed to various electromagnetic phenomena such as electrostatic discharge, conducted disturbances, or radiated electromagnetic fields.
2.2 Power Adapter CE-EMC Testing Standards and Projects
If a power adapter is used with IT or AV terminal equipment, it needs to meet specific CE-EMC testing standards and projects. These tests aim to ensure the product's electromagnetic compatibility in actual use.
Below are the
EMC test projects for power adapter CE certification:
• EN61000-3-2 Harmonic Current emissions (equipment with input power of 75W and below, no limit requirements, except lighting equipment)
• EN61000-3-3 Voltage Changes, Voltage Fluctuations and Flicker
• EN55035 (EMS test project): Radiation space Radiation +Conduct Conduct
• EN61000-4-2 ESD Testing procedure
• EN61000-4-3 RS radiation immunity
• EN61000-4-4 EFT fast pulse group
• EN61000-4-5 SURGE lightning
• EN61000-4-6 C/S conduction immunity
• EN61000-4-8 M/S power frequency magnetic field
• EN61000-4-11 DIPS voltage transient immunity
At YHYadapter, we deeply understand the importance of EMC performance for product stability. Therefore, we invest significant R&D resources in the EMC design of our power adapters and chargers. By optimizing circuit layout and employing advanced filtering technologies, we ensure that our products operate stably and reliably in various complex electromagnetic environments, meeting or even exceeding all stringent EMC test standards, including all the above-mentioned test projects.
3. LVD Testing: The Critical Defense Line for Electrical Safety
3.1 What is LVD?
LVD (Low Voltage Directive) is another critical component of CE certification. It ensures that electrical equipment operating within specific voltage ranges (AC 50-1000 volts, DC 75-1500 volts) provides a high level of protection against electric shock hazards. For power adapters and chargers, LVD testing primarily focuses on electrical safety aspects, including:
• Electric shock hazards: Ensuring proper insulation, creepage distances, and electrical clearances to prevent accidental contact with live parts.
• Energy hazards: Preventing hazards caused by excessively high energy output (such as short circuits or overcurrents).
• Fire hazards: Assessing the risk of fire due to overheating, component failure, or insulation breakdown.
• Mechanical hazards: Ensuring the product's mechanical structure is robust and will not cause risks due to sharp edges, moving parts, or instability.
• Thermal hazards: Preventing burns or other injuries that may result from overheating components or surfaces.
The main standard used for power adapter
LVD testing is typically EN 62368-1. This is currently the harmonized standard for audio/video, information, and communication technology equipment. It is a hazard-based safety standard that replaces the older EN 60950-1 (for IT equipment) and EN 60065 (for audio/video equipment) standards. It focuses on identifying potential hazards and implementing protective measures.
Compliance with EN 62368-1 requires thorough testing of insulation systems, protective earthing, mechanical stability, temperature rise, and various fault conditions to ensure the adapter remains safe even under abnormal circumstances.
At YHYadapter, we never compromise on the LVD safety of our power adapters and chargers. From strict component selection to precise structural design, all our products are rigorously executed according to international safety standards such as IEC 62368, UL 60950, and EN 60950, and pass stringent tests. This is our commitment to providing the safest and most reliable power supply to global users.
4. CE Certification Process: Every Step from Application to Certification
Understanding the complete CE certification process is crucial for ensuring product compliance. Here are the main steps for power adapter CE certification:
• Project application -- Submit CE certification application to the supervision of testing institutions.
• Material preparation - according to the CE certification standard requirements, the enterprise prepared the relevant certification documents.
• Product testing - the enterprise will be tested samples sent to the laboratory for testing.
• Report preparation - certification engineer according to the qualified test data, prepare reports.
• Submission for review -- The engineer will review the complete report.
• Certificate issuing -- After the report is verified, CE certificate will be issued.
YHYadapter, with our years of industry experience and professional certification team, can efficiently assist customers throughout the entire CE certification process. We not only provide high-quality products but also offer professional certification guidance and support to ensure your power adapter and charger products successfully pass all tests, obtain the CE certificate, and seamlessly enter the European and global markets.
CE certification period for power adapter: 5-7 working days

Power adapters and chargers are indispensable components for modern electronic devices. Their safety and compatibility directly affect user experience and product quality. To ensure the global circulation and use of these products, a series of stringent testing standards have been established internationally.
Among them, CE certification is a "pass" for products to enter the European Union market, ensuring that products comply with EU safety, health, and environmental directives. In particular, the EMC (Electromagnetic Compatibility) and LVD (Low Voltage Directive) standards covered by CE certification are especially crucial.
As a professional manufacturer with fifty years of experience in the power adapter and charger field, YHYadapter deeply understands the importance of global certification. We are committed to providing global customers with power solutions that meet the highest international standards, ensuring our products are safe, reliable, and can smoothly enter markets worldwide.
1. Understanding Power Adapter CE Certification Standards
CE certification standards are not singular; they vary based on the specific application scenarios of power adapters and their matching terminal devices. Here are some main standards for power adapter CE certification:
• EN 62368-1: A new safety standard for information technology equipment and audio/video equipment.
• EN 61347-2-13: Standard for use of power adapters in conjunction with luminaires.
• EN 60335-1: Adapters for household appliances comply with the standard.
• EN 61558-2-7: Power adapters to comply with standards implemented for toy products.
CE certification standard for power adapter (adapter standard for TV, audio and video products).
YHYadapter's products cover a wide range of applications. Whether for IT, AV equipment, household appliances, luminaires, or even toy products, we ensure that our power adapters and chargers meet the corresponding CE certification standards, providing customized compliance solutions.
2. EMC Testing: Ensuring Harmonious Coexistence in the Electromagnetic Environment
2.1 What is EMC?
EMC (Electromagnetic Compatibility) refers to the ability of electronic equipment to function normally in an electromagnetic environment without causing intolerable electromagnetic interference to other devices in that environment. For
power adapters and chargers, EMC testing primarily focuses on two aspects:
• Electromagnetic Interference (EMI): This measures the electromagnetic noise generated by the power adapter during operation. It ensures that the adapter does not emit excessive interference that could affect the normal operation of other nearby electronic devices (such as radios, televisions, or sensitive equipment).
• Electromagnetic Susceptibility (EMS): This assesses the power adapter's ability to resist external electromagnetic interference. It ensures that the adapter continues to operate normally when exposed to various electromagnetic phenomena such as electrostatic discharge, conducted disturbances, or radiated electromagnetic fields.
2.2 Power Adapter CE-EMC Testing Standards and Projects
If a power adapter is used with IT or AV terminal equipment, it needs to meet specific CE-EMC testing standards and projects. These tests aim to ensure the product's electromagnetic compatibility in actual use.
Below are the
EMC test projects for power adapter CE certification:
• EN61000-3-2 Harmonic Current emissions (equipment with input power of 75W and below, no limit requirements, except lighting equipment)
• EN61000-3-3 Voltage Changes, Voltage Fluctuations and Flicker
• EN55035 (EMS test project): Radiation space Radiation +Conduct Conduct
• EN61000-4-2 ESD Testing procedure
• EN61000-4-3 RS radiation immunity
• EN61000-4-4 EFT fast pulse group
• EN61000-4-5 SURGE lightning
• EN61000-4-6 C/S conduction immunity
• EN61000-4-8 M/S power frequency magnetic field
• EN61000-4-11 DIPS voltage transient immunity
At YHYadapter, we deeply understand the importance of EMC performance for product stability. Therefore, we invest significant R&D resources in the EMC design of our power adapters and chargers. By optimizing circuit layout and employing advanced filtering technologies, we ensure that our products operate stably and reliably in various complex electromagnetic environments, meeting or even exceeding all stringent EMC test standards, including all the above-mentioned test projects.
3. LVD Testing: The Critical Defense Line for Electrical Safety
3.1 What is LVD?
LVD (Low Voltage Directive) is another critical component of CE certification. It ensures that electrical equipment operating within specific voltage ranges (AC 50-1000 volts, DC 75-1500 volts) provides a high level of protection against electric shock hazards. For power adapters and chargers, LVD testing primarily focuses on electrical safety aspects, including:
• Electric shock hazards: Ensuring proper insulation, creepage distances, and electrical clearances to prevent accidental contact with live parts.
• Energy hazards: Preventing hazards caused by excessively high energy output (such as short circuits or overcurrents).
• Fire hazards: Assessing the risk of fire due to overheating, component failure, or insulation breakdown.
• Mechanical hazards: Ensuring the product's mechanical structure is robust and will not cause risks due to sharp edges, moving parts, or instability.
• Thermal hazards: Preventing burns or other injuries that may result from overheating components or surfaces.
The main standard used for power adapter
LVD testing is typically EN 62368-1. This is currently the harmonized standard for audio/video, information, and communication technology equipment. It is a hazard-based safety standard that replaces the older EN 60950-1 (for IT equipment) and EN 60065 (for audio/video equipment) standards. It focuses on identifying potential hazards and implementing protective measures.
Compliance with EN 62368-1 requires thorough testing of insulation systems, protective earthing, mechanical stability, temperature rise, and various fault conditions to ensure the adapter remains safe even under abnormal circumstances.
At YHYadapter, we never compromise on the LVD safety of our power adapters and chargers. From strict component selection to precise structural design, all our products are rigorously executed according to international safety standards such as IEC 62368, UL 60950, and EN 60950, and pass stringent tests. This is our commitment to providing the safest and most reliable power supply to global users.
4. CE Certification Process: Every Step from Application to Certification
Understanding the complete CE certification process is crucial for ensuring product compliance. Here are the main steps for power adapter CE certification:
• Project application -- Submit CE certification application to the supervision of testing institutions.
• Material preparation - according to the CE certification standard requirements, the enterprise prepared the relevant certification documents.
• Product testing - the enterprise will be tested samples sent to the laboratory for testing.
• Report preparation - certification engineer according to the qualified test data, prepare reports.
• Submission for review -- The engineer will review the complete report.
• Certificate issuing -- After the report is verified, CE certificate will be issued.
YHYadapter, with our years of industry experience and professional certification team, can efficiently assist customers throughout the entire CE certification process. We not only provide high-quality products but also offer professional certification guidance and support to ensure your power adapter and charger products successfully pass all tests, obtain the CE certificate, and seamlessly enter the European and global markets.
CE certification period for power adapter: 5-7 working days
