A CCS connector is an EV charging connector designed to support both AC charging and DC fast charging through a combined vehicle inlet. CCS stands for Combined Charging System, and it is one of the most widely used fast charging systems in North America, Europe, and many other EV markets.
The simple idea behind CCS is practical: keep the familiar AC charging section and add two larger DC pins below it for high-power DC charging. That means the same vehicle inlet can accept normal AC charging and faster DC charging, depending on the charger and cable being used.
CCS is not one single plug shape everywhere. The two main versions are CCS Type 1, also called CCS Combo 1, and CCS Type 2, also called CCS Combo 2. The right version depends on the vehicle market, regional standards, and the AC connector format used in that region.
This guide explains what a CCS connector is, how CCS Type 1 and CCS Type 2 differ, what vehicles and chargers are compatible, and how CCS compares with CHAdeMO for DC fast charging.
Table of Contents
- What is a CCS connector?
- How does a CCS connector work?
- What types of CCS connectors are there?
- Which vehicles and chargers are compatible with CCS?
- How does CCS compare to CHAdeMO?
- Where are CCS connectors used?
- What should buyers check before choosing CCS charging products?
- Conclusion: CCS is the mainstream fast charging connector for many EV markets
- Frequently Asked Questions
- References
What is a CCS connector?
A CCS connector is a combined EV charging connector that lets a vehicle use AC charging and DC fast charging through one inlet design. It is called “combined” because the connector system combines the AC pins with additional DC fast charging pins.
For AC charging, the vehicle uses the upper part of the inlet. For DC fast charging, the larger lower pins are also used, allowing high-power DC to flow from the charging station to the battery system. CharIN describes CCS as a system that supports AC and DC charging through a standardized combined approach 1.
This combined layout is one reason CCS became important in modern EV charging. It helps vehicle makers avoid separate AC and DC inlets, and it helps charging networks serve vehicles that support the same regional CCS standard. For readers comparing the broader connector family, Yirox’s guide to EV charging cable connector types explains how CCS fits beside Type 1, Type 2, CHAdeMO, NACS, and other connector formats.
CCS is most often discussed in the context of DC fast charging, but the name covers the whole combined system. The connector shape, vehicle inlet, communication method, cable rating, and charger capability all need to match before a charging session can work correctly.
How does a CCS connector work?
A CCS connector works by using different pins and communication paths depending on whether the vehicle is charging with AC power or DC fast charging. AC charging relies on the vehicle’s onboard charger, while DC charging sends converted DC power from the station to the battery.
In AC charging, electricity comes from a wall charger, charging station, or EVSE as AC power. The vehicle’s onboard charger converts that AC into DC for the battery. In DC fast charging, the charging station performs the AC-to-DC conversion outside the vehicle, then sends DC power through the CCS connector’s larger DC pins.
That difference is why CCS is closely tied to charging speed. The physical connector can support fast charging only when the charger, cable, vehicle, and battery management system all support the required power level. A connector alone does not guarantee a specific charging speed.
For readers who want the power-flow difference first, the Yirox guide to AC vs DC EV charging explains why DC charging is usually faster and why AC charging is still common for daily charging.
Communication is also part of the process. The vehicle and charger exchange information before and during charging, including connection status, current and voltage limits, and safety conditions. If the handshake does not complete, the charger will not simply push power into the vehicle.
What types of CCS connectors are there?
The two main CCS connector types are CCS Type 1 and CCS Type 2. CCS Type 1 is based on the Type 1 AC connector, while CCS Type 2 is based on the Type 2 AC connector.
What is CCS Type 1?
CCS Type 1, or CCS Combo 1, combines a Type 1 AC connector section with two additional DC pins. It is mainly associated with North American and some other markets that use Type 1 AC charging.
The upper portion handles AC charging and signaling, while the lower DC pins support fast charging. A vehicle with a CCS Type 1 inlet can usually accept Type 1 AC charging as well as CCS DC fast charging, assuming the charger and vehicle are compatible.
What is CCS Type 2?
CCS Type 2, or CCS Combo 2, combines a Type 2 AC connector section with two additional DC pins. It is widely used in Europe and many markets that adopted Type 2 AC charging.
Because Type 2 supports different AC charging configurations, CCS Type 2 is common in regions with single-phase and three-phase AC charging infrastructure. The physical inlet and cable design must still match the vehicle and station. Yirox’s Type 1 vs Type 2 EV charger comparison is a useful related guide if the regional AC connector choice is still unclear.
Which vehicles and chargers are compatible with CCS?
CCS compatibility depends on the vehicle inlet, connector type, charging standard, charger power level, software communication, and regional market. A CCS Type 1 vehicle cannot use a CCS Type 2 plug directly, and a CCS vehicle will not automatically match every charging station.
The first compatibility question is physical. The connector must fit the vehicle inlet. The second is electrical. The charger and vehicle must support the required voltage, current, and charging mode. The third is communication. The vehicle and charger need to complete a safe charging handshake.
Vehicle support also varies by market and model year. Some older EVs used CHAdeMO for DC fast charging, some modern vehicles use CCS, and some markets are shifting toward other connector systems. Charging networks often support multiple connector types during transition periods.
Adapters can be useful in some cases, but they are not a universal solution. High-power DC charging involves safety communication, locking behavior, thermal limits, current ratings, and manufacturer approval. Buyers should avoid assuming that any adapter can safely solve a connector mismatch.
How does CCS compare to CHAdeMO?
CCS and CHAdeMO are both DC fast charging systems, but CCS uses a combined AC/DC inlet design while CHAdeMO uses a separate DC fast charging connector. CCS has become more common on many newer EVs in North America and Europe, while CHAdeMO remains important for certain vehicles and markets.
CHAdeMO was one of the early major DC fast charging systems and has been closely associated with Japanese EVs and some earlier fast charging networks. The CHAdeMO Association continues to support the protocol and its ecosystem 2. CCS grew later as a combined connector approach backed by many automakers, charging hardware companies, and infrastructure groups.
| Feature | CCS | CHAdeMO |
|---|---|---|
| Connector concept | Combined AC and DC inlet | Separate DC fast charging connector |
| Main versions | CCS Type 1 and CCS Type 2 | CHAdeMO connector family |
| Common use | Many newer EVs and fast charging networks | Selected Japanese EVs, older networks, and certain markets |
| Vehicle inlet layout | AC section plus DC pins in one inlet | Separate inlet from AC charging in many vehicles |
| Buyer concern | Choose correct Type 1 or Type 2 region | Confirm vehicle and network support |
The practical difference for drivers is simple: the vehicle must have the inlet that matches the charger cable. A CCS cable cannot plug into a CHAdeMO inlet, and a CHAdeMO cable cannot plug into a CCS inlet. For charging station operators and product buyers, the decision affects cable inventory, station design, service support, and market positioning.
Where are CCS connectors used?
CCS connectors are used mainly for DC fast charging at public charging stations, highway corridors, commercial charging sites, fleet depots, and some workplace or destination sites that need faster charging. CCS is also part of many vehicle inlets that support both AC and DC charging.
The U.S. Department of Energy’s charging station guidance distinguishes station types and shows how DC fast charging is used where drivers need faster charging away from home 3. CCS is one of the connector systems commonly associated with that DC fast charging category.
At the vehicle level, CCS appears on many battery electric vehicles designed for markets where CCS has become a dominant fast charging standard. At the infrastructure level, public charging networks may install CCS cables, CHAdeMO cables, or other connector types depending on the local vehicle mix.
For charging station planning, connector support should be decided with the actual user base in mind. A site serving newer CCS vehicles has different cable needs from a site serving older CHAdeMO vehicles or mixed fleets. Yirox’s guide to EV charging station types can help frame where connector choice fits into charging station design.
What should buyers check before choosing CCS charging products?
Buyers should check connector type, regional market, cable rating, inlet fit, communication compatibility, thermal design, certification requirements, and supplier documentation before choosing CCS charging products. CCS is a high-power interface, so details matter.
Start with the market. North America and Europe do not use the same CCS physical connector. A product intended for CCS Type 1 vehicles will not fit CCS Type 2 vehicles. Regional documentation, labeling, packaging, and test expectations should match the connector version.
Then check cable and connector construction. DC fast charging can involve high current, heavier cables, connector locking, strain relief, pin durability, and heat management. Cable jacket material also affects flexibility, abrasion resistance, and feel in daily use. For material comparison, Yirox’s guide to EV charging cable materials is a useful related read.
Software and backend compatibility may also matter. For charging stations, connector hardware is only one layer. Operators may also need charger status reporting, firmware management, remote diagnostics, and network integration. The related guide to OCPP communication for EV chargers explains why communication support matters in managed charging networks.
A practical buyer checklist includes:
- Connector version: CCS Type 1 or CCS Type 2, matched to the target region.
- Vehicle compatibility: inlet shape, supported charging mode, and maximum charging power.
- Cable rating: current, voltage, thermal design, jacket material, bend performance, and strain relief.
- Charging station fit: cable mounting, connector holster, locking behavior, and service replacement.
- Communication behavior: charging handshake, fault handling, firmware support, and backend integration when needed.
- Documentation: certification awareness, labels, manuals, inspection reports, packaging, and market-specific instructions.
- Supplier capability: OEM/ODM customization, batch consistency, quality control, and replacement part support.
For distributors and private-label programs, CCS should not be treated as a generic plug name. The product has to match the market, vehicle base, charging power, cable design, and after-sales support model.
Conclusion: CCS is the mainstream fast charging connector for many EV markets
CCS is important because it combines AC and DC charging capability into one vehicle inlet design. CCS Type 1 and CCS Type 2 serve different regional markets, but both use the same basic idea: keep AC charging support and add DC fast charging pins for higher-power charging.
Compared with CHAdeMO, CCS has become more common on many newer EVs and public fast charging networks in North America and Europe. CHAdeMO still matters for certain vehicles and markets, so compatibility should always be checked against the actual vehicle base rather than assumed from global trends.
For buyers, the right question is not only “Is this CCS?” It is “Which CCS version, for which market, at what power level, with what cable, connector, documentation, and support?” If the next step is building a charging accessory lineup, Yirox’s EV charging accessories range is a practical place to compare related connector, cable, charger, and sourcing options.
Frequently Asked Questions
Is CCS the same as Type 2?
No. Type 2 is an AC connector standard, while CCS Type 2 adds two DC pins below the Type 2 section for DC fast charging. A CCS Type 2 inlet can usually support Type 2 AC charging and CCS DC fast charging.
What is the difference between CCS Type 1 and CCS Type 2?
CCS Type 1 is based on the Type 1 AC connector and is mainly associated with North America and some other markets. CCS Type 2 is based on the Type 2 AC connector and is widely used in Europe and many Type 2 markets.
Is CCS faster than CHAdeMO?
CCS is not automatically faster in every charging session, because speed depends on the charger, vehicle, battery, and charging curve. However, many newer high-power fast charging networks and vehicles have focused on CCS support, especially in North America and Europe.
Can a CHAdeMO car use a CCS charger?
Not directly. A CHAdeMO inlet and a CCS plug are physically different and use different charging systems. Any adapter use should be checked carefully against vehicle approval, charger compatibility, and safety limits.
Can a CCS connector be used for AC charging?
Yes, the upper AC section of a CCS inlet can be used for AC charging when the vehicle and AC charger use the matching regional connector type. The lower DC pins are used for DC fast charging.
Do all EVs have CCS connectors?
No. Connector support depends on the vehicle model, market, and model year. Some vehicles use CCS, some use CHAdeMO, some use NACS or other regional systems, and some plug-in hybrids may not support DC fast charging at all.
What should distributors check before sourcing CCS cables or connectors?
Distributors should confirm connector version, cable rating, inlet compatibility, target market, certification expectations, labeling, packaging, test documentation, and supplier quality control. High-power charging components should never be sourced by connector name alone.
References
[1] CharIN. (2025). Combined Charging System CCS. https://www.charin.global/technology/ccs/
[2] CHAdeMO Association. (2025). CHAdeMO Protocol. https://www.chademo.com/
[3] U.S. Department of Energy Alternative Fuels Data Center. (2025). Electric Vehicle Charging Station Locations. https://afdc.energy.gov/fuels/electricity_locations.html
[4] Joint Office of Energy and Transportation. (2025). Charger Types and Speeds. https://driveelectric.gov/charger-types
[5] U.S. Department of Energy Alternative Fuels Data Center. (2025). Developing Infrastructure to Charge Electric Vehicles. https://afdc.energy.gov/fuels/electricity_infrastructure.html
