EV Charging Connector Types

Introduction to EV Charging Connector Types

There are several EV charging connector types used around the world for conductive charging of electric vehicles. It is important for EV owners, businesses investing in EV charging and EV charger manufacturers to understand the different connector types, their features and geographical deployment. This guide provides an overview of the major connector types – AC and DC, their standards and applications. Knowing the pros and cons of each will help make informed decisions when investing in public EV charging or personal EV charging stations. We compare the most common connectors like Type 1, Type 2, CCS, CHAdeMO and GB/T by charge power, regional usage and compatibility.

Type 1 – The Standard AC Charging Connector

The Type 1 connector uses the SAE J1772 standard and is the most common connector type used for AC charging in North America and Asia. It provides single-phase AC power up to 19.2kW, with a maximum current of 80 Amps. The Type 1 connector has a round 7-pin design that is relatively compact. It features a latching mechanism for secure connection during charging. Type 1 connectors are found in most public AC charging stations and are standard for Level 1 and Level 2 EV chargers in the United States. A major advantage of Type 1 is its wide availability and backwards compatibility. It works for all North American and Asian EVs. The Type 1 plug can also be adapted to other plug types using sockets and adapters.

Type 2 – The European AC Charging Connector

The Type 2 connector uses the IEC 62196 standard and is the standard AC charging plug type in Europe. It provides single and three-phase power up to 43kW, with a max current of 63 Amps. The Type 2 has a distinct rectangular shape with large side guides and charging pins located at the top and bottom. It utilizes a locking mechanism for safety. Type 2 connectors are found in public AC charging points across Europe and widely used for AC charging of European EVs. The key advantage of Type 2 is higher charging power delivery compared to Type 1. However, it has limited deployment outside Europe currently. Type 2 is gradually being adopted as the global standard for AC charging.

CHAdeMO – The DC Fast Charging Connector

CHAdeMO is the first DC fast charging standard created in Japan. It uses a special large round connector that provides DC power up to 62.5kW, enabling very fast charging. CHAdeMO is popular in Asia and also found at many DC fast charging locations in Europe and North America. It is supported by a number of EV brands like Nissan, Mitsubishi, Toyota, Honda. A key advantage of CHAdeMO is its speed, allowing an 80% charge in 30-40 minutes. Drawbacks include larger connector size, no integrated communication protocol and more limited deployment than newer standards. CHAdeMO charging stations require special DC chargers compatible with the protocol.

CCS Combo 1 – The American DC Fast Charging Connector

The CCS Combo 1, using the SAE J1772-2009 standard, is a DC fast charging connector widely used in North America. It combines AC Level 2 charging pins with two large DC pins for fast charging support. The CCS Combo 1 plug provides up to 200 Amps and delivers DC power up to 400 kW. It is natively supported by Tesla with an adapter and found in numerous DC fast charging locations across the US. Key advantages are very high DC power delivery and integrated communication protocol. The drawback is larger size and limited usage outside North America. CCS Combo 1 is primarily found in North American DC fast charging stations compatible with the plug type.

CCS Combo 2 – The European DC Fast Charging Connector

The CCS Combo 2 uses the IEC 62196-3 standard and is the European version of the CCS fast charging protocol. It combines the Type 2 AC plug with two supplementary DC pins, allowing both AC and DC fast charging. CCS Combo 2 provides up to 200 Amps current and DC charging up to 350 kW, though most chargers deliver 50-150kW. It is the mandated DC fast charging standard for European vehicles. The CCS Combo 2 plug is found in most European DC fast chargers compatible with the protocol. Key advantages are high power delivery, integrated communication and extensive usage across Europe. But it has limited deployment in North America currently.

Tesla Proprietary Connector – Supercharger Connector

Tesla uses its own proprietary charging connector for its Supercharger DC fast charging network. The Tesla connector is smaller than CHAdeMO and CCS and provides up to 250kW power with high 500 Amps current. This enables ultra-fast charging exclusive for Tesla vehicles. The Supercharger network is globally available for Tesla EV owners. While very fast, the limitation is proprietary compatibility only with Tesla EVs. Tesla drivers in North America can use the CCS Combo 1 plug with an adapter. Tesla has opened some stations for use by other EVs in Europe recently.

GB/T – The Chinese DC Fast Charging Connector

GB/T is the Chinese national standard connector for DC fast charging. It was created as an alternative to the Japanese CHAdeMO to establish a domestic EV infrastructure in China. The GB/T plug is compactly designed for power delivery up to 200kW with max current of 400 Amps. It is found in thousands of DC charging stations across China and exclusively used by Chinese EV brands. Advantages are fast charging speed and wide availability domestically. Downsides are larger size than European plugs and currently limited to China. Adapters are being developed to allow compatibility with other plug types.

Comparing and Contrasting the Different Connector Types

In summary, there are significant technical and geographical differences between the major EV connector types in use worldwide. While their power delivery capabilities are becoming similar, the charging standards are fragmented by region currently. For vehicle owners, it is ideal to have access to more than one plug type for maximum interoperability when traveling. For businesses investing in EV charging infrastructure, selecting locations based on connector prevalence and vehicle population is prudent. As technology evolves over time, we may eventually see more universal standards emerge across AC, DC and fast charging.

FAQ

Q: What is the most commonly used EV connector type?

A: Type 1 is the most widely used connector for AC charging globally.

Q: Which connector is best for future-proof charging infrastructure?

A: CCS Combo 2 is emerging as a leading global standard for both AC and DC charging.

Q: What is needed to charge a Tesla vehicle on a CCS station?

A: A CCS adapter is required to connect the Tesla plug to a CCS charging station.

Q: Can all EVs use any type of charging connector?

A: No, EVs are only compatible with specific charging connector types.

Q: How is DC fast charging different from AC charging?

A: DC fast charging provides much higher power for ultra-fast charging, while AC is slower.