[Home](/)/[Resources](/resources)/CE compliance for USB charging devices USB chargersPower adapters # CE Compliance for USB / Charging Devices USB chargers and power adapters are among the most regulated categories of consumer electronics. They operate at mains voltage, connect to user devices, and must meet strict safety standards. This guide covers the CE marking requirements for USB chargers, power adapters, and charging devices. Copy Link[Share on WhatsApp](https://wa.me/?text=https%3A%2F%2Fkrono-labs.com%2Fguides%2Fce-compliance-for-usb-charging-devices) [Check charger requirements](/platform/start) Problem ## Chargers are high-risk, high-regulation products USB chargers operate at dangerous mains voltages, connect directly to user devices, and are used in uncontrolled environments. This combination makes them one of the most scrutinized product categories under CE marking. Market surveillance authorities regularly test chargers for safety, and non-compliant chargers are frequently recalled. The complexity increases with USB-C and power delivery protocols. Modern chargers negotiate voltage and current with connected devices, introducing software-controlled power delivery that must be tested for safety. USB-IF certification, while not legally required, is effectively mandatory for market acceptance. The pain point is not understanding that chargers are not simple accessories. They are mains-powered safety-critical products that require full LVD compliance, EMC testing, and safety certification. Cutting corners on charger compliance is a common cause of product recalls and liability exposure. Requirements ## Applicable CE requirements for chargers ### Low Voltage Directive (LVD) Mandatory for chargers operating at 50–1000V AC. Covers electrical safety, insulation, creepage/clearance, and thermal protection. ### EMC Directive Required for all chargers. Emissions testing ensures the charger does not interfere with other equipment. Immunity testing ensures reliable operation. ### Safety standards (IEC 62368-1) The harmonised standard for IT/AV audio/video and information technology equipment power supplies. Replaces older IEC 60950-1 and IEC 60065. ### USB-IF compliance Not a legal requirement but strongly recommended for market acceptance. USB-IF certification ensures interoperability and safety. Process ## Safety design considerations ### Overcurrent protection Chargers must include overcurrent protection to prevent damage to connected devices and fire hazards. ### Overvoltage protection Protection against voltage spikes and overvoltage conditions that could damage connected devices. ### Thermal protection Thermal cutoff devices or thermal protection circuits to prevent overheating and fire risk. ### Isolation Proper isolation between primary (mains) and secondary (output) sides to prevent electric shock. Structure ## USB-IF certification vs CE marking USB-IF certification and CE marking are separate but complementary requirements. ### CE marking * • Legal requirement for EU market * • Covers LVD, EMC, RoHS, GPSR * • Based on EU directives * • Self-certification typically allowed * • Focus on safety and EMC ### USB-IF certification * • Voluntary industry certification * • Ensures USB specification compliance * • Required for USB logo usage * • Third-party testing required * • Focus on interoperability ## Learn this properly, not just for one product In-depth courses and books that teach the process — not a one-off answer you'll need to look up again next time. [Start the course — $149](/courses/01-ce-marking-for-electronics-engineers)See your free roadmap [Prefer to read? Get the book — $24.99](/books/01-ce-marking-for-electronics-engineers) ## Frequently asked questions ### Do USB chargers need USB-IF certification for CE marking? USB-IF certification is not legally required for CE marking. However, it is strongly recommended for market acceptance and to ensure interoperability. Many retailers and OEMs require USB-IF certification as a condition of doing business. ### What safety standard applies to USB chargers? IEC 62368-1 is the current harmonised standard for IT/AV equipment power supplies. It replaces the older IEC 60950-1 (IT equipment) and IEC 60065 (audio/video equipment). Check which standard your lab applies. ### Can I self-certify a USB charger for CE marking? Yes, USB chargers can typically self-certify under Module A (internal production control) when harmonised standards are applied. Notified Body involvement is not required unless you are using non-harmonised standards. ### Do USB-C chargers need special testing? USB-C chargers need testing specific to USB-C power delivery protocols. This includes testing for voltage negotiation, current handling, and USB-IF certification requirements if pursuing certification. 🇪🇺 CE Marking roadmap for your product Every standard, document, and test that applies — free, no account required. See your free roadmap Learn this properly In-depth course that teaches the full process, not just this one answer. [Start the course — $149](/courses/01-ce-marking-for-electronics-engineers)[Prefer to read? Get the book — $24.99](/books/01-ce-marking-for-electronics-engineers) Related guides * [USB Charger CE Compliance Deep DiveA deep dive into CE compliance engineering for USB chargers and power adapters: the hazard-based safety approach of IEC 62368-1, USB-C Power Delivery protocol testing, the EU Common Charger Directive's USB-C mandate, and why chargers are among the most recalled categories.](/guides/ce-compliance-for-usb-charging-devices-deep-dive) * [CE marking for consumer electronicsComplete guide to CE marking for consumer electronics: applicable directives, testing requirements, cost breakdown, and realist…](/guides/ce-marking-for-consumer-electronics) * [Low Voltage Directive explainedComplete guide to the EU Low Voltage Directive (LVD 2014/35/EU): scope, essential safety requirements, testing, and compliance …](/guides/low-voltage-directive-explained) * [CE for battery-powered devicesComplete guide to CE compliance for battery-powered devices: battery regulations, safety requirements, transport rules (UN 38.3…](/guides/ce-for-battery-powered-devices) * [EMC Directive complianceComplete guide to EMC Directive (2014/30/EU) compliance: emissions, immunity, testing requirements, and harmonised standards fo…](/guides/emc-directive-compliance) Educational resource only. CE responsibility remains with the manufacturer or authorised representative. Verify current law, standards, and product-specific evidence before signing.