DC charging connector

NACS is Tesla’s compact charging connector that has been standardized as SAE J3400. One plug covers both AC and DC. In 2025 this matters because most new North American EVs and charging sites are shifting toward native NACS access while mixed posts (NACS + CCS1) continue during the transition.     Compatibility    Vehicle inlet Location What you need to charge NACS (SAE J3400) Tesla Supercharger Plug and charge (follow on-screen/app flow) NACS (SAE J3400) Third-party DC site Use NACS post directly (where available) CCS1 Tesla Supercharger DC adapter + supported app flow (site/model dependent) CCS1 Third-party DC site Use CCS1 post as usual J1772 (AC only) Home/Work AC charging J1772 wall unit or NACS-to-J1772 adapter for AC NACS (vehicle) Home/Work AC charging NACS wall unit or mobile connector   If you are unsure about adapter support, check your vehicle maker’s guidance before buying third-party accessories.     How NACS differs from CCS1? • One plug for AC and DC. With NACS you don’t swap heads between Level 2 and DC fast; the same handle does both. • Smaller, lighter handle. The connector shell is compact and easy to seat with a firm click. • Network access. Supercharger sites already use NACS hardware; many third-party networks are adding NACS posts so mixed forecourts will be common through 2025–2026.     Charging speed in practice Connector potential and site speed are not the same thing. Your session power depends on your battery state of charge, pack temperature, the site’s cabinet capability, cable cooling, and sharing rules across stalls.   Treat peak kW as “up to” guidance. A steady, well-managed curve is more important than a headline number. If the handle or cable feels unusually hot, pause the session and report it to the site operator.     Standards status (J3400 and J3400/2) SAE J3400 is the standardized name for the NACS interface. J3400/2 clarifies the connector/inlet physical architecture and paves the way for higher-power, safer fast charging as hardware evolves. For site owners and fleets, the takeaway is simple: investing in J3400-compatible hardware reduces future retrofit risk as more vehicles ship with NACS ports.     Quick notes for site operators Use this short checklist when planning NACS support: Handles and cablesSelect NACS DC handles matched to your cabinet’s max current and thermal profile (liquid-cooled vs naturally-cooled). Verify strain relief, boot, and latch durability under frequent cycles.   Software and paymentsConfirm app/RFID flows for mixed sites. Expose plug-and-charge where supported. Keep error copy simple and actionable.   Bay layout and signageMark NACS vs CCS1 positions on pedestals and on the ground. Route cables so the left- or right-side inlets can reach without sharp bends.   Power sharing and uptimeModel load sharing across pairs/quads. Monitor temperature derates in hot/cold seasons and tune setpoints to avoid unnecessary cutbacks.   Training and safetyCoach staff on latch checks, connector seating, and what to do if an adapter is stuck. Accept only compliant, breakaway-safe accessories.   Connector anatomy NACS uses five conductors: two high-power contacts for DC/AC, one protective earth, and two low-voltage pins for proximity and control pilot. The control pilot negotiates charging and monitors safety states; proximity detects latch position and enables safe disconnect. The design manages temperature at the contact level, so practical current is governed by thermal limits rather than a single fixed number in isolation.     What this means for drivers and buyers If your new EV has a NACS port, you can use NACS posts at Superchargers and at third-party sites that offer them, plus NACS AC charging at home or work. If your EV still uses CCS1, look for official DC adapters and confirm site access in the app before you rely on a specific location. During the transition, pick destinations that show live port types and availability to avoid detours.     FAQ Is NACS the same as SAE J3400?Yes. NACS is the original name; SAE J3400 is the standardized designation used by industry and regulators.   Do I need a special home charger?If your car has a NACS inlet, a NACS wall unit keeps things simple. If you already own a J1772 wallbox, an AC adapter can bridge the gap for many vehicles.   How fast will my car charge on NACS?It depends on your car and the site. Expect high power when your battery is warm and at lower state of charge, tapering as it fills. The connector does not guarantee a specific kW; the site and the vehicle do.   Can any CCS1 car use a Supercharger with an adapter?Access depends on the site, software flow, and the adapter’s approval. Check official guidance for your model and region. Avoid unapproved “breakaway” devices that can overheat or disable the latch.   What should fleets and property owners do in 2025?Plan for mixed posts. Add NACS handles where utilization justifies it, keep a small CCS1 footprint during the transition, and make signage unambiguous.     What Workersbee can do for you? Connector hardware, ready for today’s mixNACS (SAE J3400), CCS1, and CCS2 handles—naturally-cooled and liquid-cooled—matched to your cabinet power and climate.See: Workersbee EV connector range   Migration kits and guidanceCable + handle swap options, strain-relief and boots, labeling templates, and bay signage suggestions so mixed NACS/CCS sites stay clear and usable.   Engineering supportHelp with derating policy, temperature monitoring, and power-sharing settings to keep sessions stable at peak hours.   Compliance and testingBuild aligned with SAE J3400/J3400-2 intent; routine mechanical and thermal cycle tests; documentation for vendor approval workflows.   Customization and scaleGrip textures, overmolds, and branding options; batch consistency for multi-site rollouts.     Not sure which handle to choose?Tell us your cabinet power and ambient conditions. We’ll recommend a matched pair for steady performance.→ Workersbee NACS connector→ Talk to an engineer (info@workersbee.com)   Related article:   What Is a Type 2 EV Connector? What is the J1772 Connector?

With the explosive growth in demand for electric vehicles, the need for EV charging infrastructure is also increasing rapidly. Especially for long-distance travel, there is a higher demand for DC high-power public chargers in highway corridors. Governments are making efforts to advance the construction of high-power charging stations，but the progress has been less than ideal due to the immense financial pressure, high initial costs, and various requirements for government incentives. The market needs a shot in the arm with high-performance and more cost-effective fast-charging product. Workersbee's natural-cooling CCS2 charging connector 1.1 is entering the market with full attention.   The CCS2 charging connector 1.1, is another exploration by the world-renowned charging solutions provider Workersbee in the EV charging revolution. Apply natural-cooling technology to support STABLE CONTINUOUS current output up to 375A, setting a new standard for natural-cooling performance in high-power DC charging. Apart from the improvement in charging efficiency, it has also made breakthroughs in technological innovation, once again leading the charging market in terms of reliability, safety, cost-effectiveness, and market applications.   The temperature rise generated by conductor resistance is a critical factor in the thermal losses of charging energy. To overcome this stubborn problem, product engineers use terminal ultrasonic welding technology to replace traditional riveting technology to reduce the resistance at the terminal connection, consequently lowering the temperature rise and ensuring that each component of the equipment works properly within the allowable temperature range.     With the support of natural-cooling technology, the charging connector can maintain a lower temperature rise range even during high-power charging, reducing the risk of overheating during charging sessions and allowing for a greater current to pass. What we can be confident about is that it can continuously charge at a high current of 375A. Through multi-sample laboratory testing, even if charged at a peak of 400A for about 60 minutes, the terminal temperature rise is still controlled within 50K in safety. The outstanding charging capability enables electric vehicles to gain more energy in a short time, providing EV owners with a more efficient charging experience. It also significantly enhances charging safety, ensuring the long-term stable operation of chargers.   Internally, the shell of the connector adopts the modular design makes it an efficiently producible standard component, further reducing component costs. The clever multiple-seal structure enhances the waterproof performance at the connector-cable junction, making it easy to achieve an IP55 protection level. It is not only waterproof and dustproof, but also moisture-proof, which is very reliable in humid environments in some areas.     It effectively prevents water vapor from penetrating the charging plug, avoiding potential short circuits and leakage accidents. Whether in harsh weather conditions with rain or snow or high-humidity environments, it offers a reliable protective barrier, ensuring that the charger remains in an efficient, stable, and safe working state.   Additionally, it boasts a series of powerful safety protection measures. The material selection for product manufacturing is also rigorous, requiring materials to possess high flame resistance, pressure resistance, wear resistance, impact resistance, and high oil resistance. Such excellence in R&D and production requirements prompts us to provide more reliable charging solutions for charging stations, while also extending the service life of charging connectors and cables, meeting user demands for high standards and high-quality products, and reducing maintenance costs.   Compared to AC charging stations, DC charging stations have higher charging efficiency and are more favored by car owners who need rapid recharge on highways. Compared to liquid-cooling systems, the CCS2 natural-cooling charging connector has a clear advantage in cost-effectiveness. Its high compatibility with natural-cooling charging stations reduces the complex and expensive building costs of liquid cooling systems, cable investment costs, and operational maintenance costs, making fast charging more economically feasible and contributing to the widespread adoption of CCS2 connectors and even electric vehicles.   Workersbee's CCS2 natural-cooling connector 1.1 has not only achieved significant technological breakthroughs but has also demonstrated strong competitiveness in the market. Through a forward-looking global market layout and headquarters establishment in Europe, the market trial deployment of new products has yielded exciting feedback. The charging connector is highly compatible and adaptable to DC charging stations in the European market， and easily be accessed. With TUV and CE certifications, its safety and reliability have received unanimous praise from internal test customers, and expressing strong expectations for further in-depth cooperation.   Workersbee's CCS2 natural-cooling connector 1.1 supports optional current configurations of 250A to 375A, easily achieving more economical DC fast charging through the seamless integration with natural-cooling technology. It effectively monitors the working temperature during the charging process and provides reasonable feedback, ensuring the long-term safe and stable working of the equipment. We look forward to establishing friendly and positive connections with all outstanding automakers, charger manufacturers, and charging station builders, collectively driving the electric vehicle charging industry into a more efficient, safe, and sustainable future.