EV Charging Connectors: CCS2, Type2 & GB/T Solutions

DC fast charging plug types are the specialized connectors designed to deliver high-power direct current directly to an electric vehicle's battery, bypassing the onboard charger to enable significantly faster charging times. Unlike AC charging, which is standardized primarily by region, the landscape for DC fast charging has seen multiple competing standards, making understanding these plug types essential for EV manufacturers, charging infrastructure providers, and drivers. The Combined Charging System (CCS) is the most widely adopted standard globally. It is an elegant design that integrates DC fast charging pins into the existing AC inlet. In North America, this results in the CCS1 plug, which adds two large DC pins below the standard SAE J1772 AC connector. In Europe and other regions using Type 2 AC, the CCS2 plug adds the DC pins below the IEC Type 2 connector, resulting in a single, combined inlet capable of both AC and DC charging. The CHAdeMO standard, developed in Japan, is a physically distinct, larger plug dedicated solely to DC fast charging. It was an early entrant to the market and is still found on many Japanese vehicles, though its market share is declining relative to CCS. In China, the GB/T standard defines its own unique DC fast charging plug, which is distinct from both CCS and CHAdeMO. Tesla also developed its own proprietary connector, the North American Charging Standard (NACS), which has a compact design capable of both AC and DC charging. The engineering behind these plugs is extraordinarily demanding. They must contain large-gauge pins to carry currents of 200-500 Amps or more, incorporate multiple signal pins for advanced communication (ISO 15118 for Plug and Charge), and include robust locking mechanisms and high voltage interlock loops for absolute safety. JONHON OPTRONIC TECHNOLOGY CO., LTD., with its profound expertise in high voltage interconnect technology and its active role in formulating IEC and Chinese standards, is deeply knowledgeable about the requirements for all these plug types. Our components and engineering support help manufacturers navigate this complex landscape. For specific inquiries about connectors compatible with various DC fast charging standards, please contact us.