NACS AC/DC Charging inlet socket

NACS AC / DC Charging Inlet Socket | SAE J3400 Compliant | 40A / 50A / 80A Solutions

Our NACS (North American Charging Standard) Charging Inlet Socket is a premium, automotive-grade interface engineered for the next generation of North American electric vehicle infrastructure. Fully compliant with the SAE J3400 standard, this inlet provides a unified, high-performance port for both AC destination charging and high-power DC fast charging. Designed for reliability, thermal efficiency, and ease of integration, it is the ideal choice for OEMs and EV conversion projects.


Key Product Highlights

  • SAE J3400 Certified: Engineered to the exact dimensional and electrical specifications of the North American Charging Standard.

  • Versatile AC Ratings: Available in 40A, 50A, and 80A configurations to match your vehicle’s On-Board Charger (OBC) requirements.

  • High-Voltage DC Support: Capable of handling high-power DC fast charging, supporting the transition to 400V and 800V battery architectures.

  • Superior Durability: Validated for 10,000+ mating cycles, ensuring industrial-grade longevity for the life of the vehicle.

  • All-Weather Protection: Rated at IP44(PLUGGED IN) / IP67&IP6K9K(INNER AREA OF VEHICLE INLET), providing robust defense against dust, moisture, and environmental contaminants.

Technical Excellence & Safety Integrity 

1. Advanced Thermal Management

In high-current charging, heat is the enemy of efficiency. Our NACS inlets feature silver-plated copper alloy terminals. Silver offers the highest electrical conductivity of any metal, significantly reducing contact resistance. This ensures that even at a continuous 80A AC load, the inlet maintains a stable thermal profile, protecting the vehicle’s internal wiring and sensitive electronics.

2. Rugged Automotive-Grade Materials

To ensure maximum Trustworthiness, the socket housing is manufactured from high-impact thermoplastic with a UL94V-0 flame-retardancy rating. The internal seals and cable bushings are made from premium TPE (Thermoplastic Elastomer), which maintains its flexibility and sealing properties in extreme temperatures ranging from -30°C to +50°C.

3. Unified Port Architecture

The genius of the NACS (SAE J3400) design lies in its simplicity. By using the same primary pins for both AC and DC, the inlet reduces the mechanical complexity and weight of the vehicle’s charging system. Our inlet is designed for a seamless “handshake” with the charging station, ensuring safe power delivery only when a secure connection is verified.


Technical Specifications

Category Parameter Specification
Standard Executive Standard SAE J3400
Electrical AC Rated Current 40A / 50A / 80A
Rated Voltage 240V AC / Up to 1000V DC
Conductor Material Silver-Plated Copper Alloy
Environmental Operating Temp -30°C to +50°C
Ingress Protection IP44 (PLUGGED IN) / IP67&IP6K9K(INNER AREA OF VEHICLE INLET)
Flame Retardancy UL94V-0
Mechanical Mating Cycles ≥ 10,000 Cycles
Insertion Force < 100N

Frequently Asked Questions (FAQ)

Q: Is this inlet compatible with Tesla Superchargers?

A: Yes. Since this inlet is built to the SAE J3400 standard, it is fully compatible with NACS (Tesla-style) charging connectors, including both home Wall Connectors and public Superchargers.

Q: Why should I choose the 80A version over the 40A?

A: The 80A version is designed for vehicles with high-capacity AC onboard chargers. It allows you to take full advantage of high-output Level 2 home or destination chargers, significantly reducing AC charging times compared to a 40A inlet.

Q: How does the silver plating affect the product’s lifespan?

A: Silver plating prevents the oxidation of the copper terminals, which is the leading cause of increased resistance and overheating in charging ports over time. This ensures the inlet remains safe and efficient even after years of daily use.

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