• CHINESE EV CHARGING STANDARDS
  • CHINESE EV CHARGING STANDARDS
  • CHINESE EV CHARGING STANDARDS
Product Range
GB/T Connector Product Range
Select by charging type and installation side before comparing current, voltage, cooling, and cable configurations.  
DC CONNECTOR OPTIONS
G4.0 GB/T DC Connectors for Fast Charging Projects
Compare Naturally-cooled and liquid-cooled G4.0 configurations by current requirement, cable structure, and charger cooling design.

 

Fast-charging selection starts with the required current and charger cooling architecture.  
PROJECT SELECTION
GB/T Connector Selection by Project Type  
Use the project type to identify the product direction, then confirm the electrical ratings, cable configuration, cooling design, and installation requirements.
Project Type Product Direction Key Selection Factors Information to Prepare
Low-Power DC Charging Equipment G3.0 Low-Power DC Connector 20–80A, 750/1000V DC, cable size and handling Rated current and voltage, cable length, charger-side termination
DC Fast Charging Equipment G4.0 Naturally-Cooled or Liquid-Cooled DC Connector 80–350A or 400A/600A max-current configurations, cable diameter, cooling-system requirements Required current profile, voltage, cooling architecture, cable length, operating conditions
AC Charging Equipment G1.0 AC Connector 16A or 32A, single-phase or three-phase, 250/440V AC Phase, current, voltage, cable length, charger-side wiring
Vehicle-Side DC Interface GB/T DC Vehicle Inlet 80–250A, 750/1000V DC, mounting space and cable routing Vehicle-platform ratings, installation drawing, available space, cable termination
Vehicle-Side AC Interface GB/T AC Vehicle Inlet 16A or 32A, single-phase or three-phase, 250/480V AC Phase, current, voltage, installation drawing, cable routing
APPLICATIONS
Where GB/T Connectors Are Used
GB/T connector and inlet configurations support public charging, fleet operations, AC charging equipment, and vehicle-platform integration.
  • Public DC Fast Charging
    Public DC Fast Charging
    G4.0 GB/T DC Connector
    G4.0 DC connector configurations for public fast chargers and other high-use GB/T charging equipment.
  • Fleet and Commercial Vehicle Charging
    Fleet and Commercial Vehicle Charging
    G4.0 GB/T DC Connector
    DC connector options for fleet depots, electric buses, logistics vehicles, and commercial vehicle charging projects.  
  • AC Charging Equipment
    AC Charging Equipment
    G1.0 GB/T AC Connector
    G1.0 cable assemblies for single-phase or three-phase GB/T AC charging equipment.  
  • Vehicle-Side Interface Integration
    Vehicle-Side Interface Integration
    GB/T AC and DC Vehicle Inlets
    AC and DC vehicle inlets for EV manufacturers, commercial vehicle platforms, and system integrators.  
Integration Support
GB/T Connector Integration Support  
Review connector, cable, cooling, and vehicle-inlet requirements before the final product configuration is confirmed.  
  • Electrical and Cooling Configuration
    Electrical and Cooling Configuration
    Align current, voltage, cooling method, and operating conditions with the selected connector and charger architecture.  
  • Cable and Charger-Side Termination
    Cable and Charger-Side Termination
    Confirm cable length, cable specification, tail-end wiring, and charger-side termination requirements.
  • Vehicle Inlet Fit and Mounting
    Vehicle Inlet Fit and Mounting
    Review AC or DC inlet dimensions, mounting space, installation position, and vehicle-side cable routing.
  • Sensor and Locking Interfaces
    Sensor and Locking Interfaces
    Confirm the temperature-monitoring, locking, signal-wiring, and interface requirements available for the selected configuration.
TECHNICAL SUPPORT
Technical Documents and Project Support  
Request model-specific datasheets, dimensional drawings, test documents, and configuration details for technical review and purchasing evaluation.  
  • Datasheets
    Electrical ratings, cable specifications, materials, protection ratings, and operating conditions for the selected configuration.
  • Dimensional Drawings
    Connector or inlet dimensions for charger layout, vehicle-side mounting, clearance, and installation review.
  • Test and Compliance Documents
    Available compulsory testing reports, applicable certification files, and temperature-rise records, subject to model and configuration.
  • Project Communication
    Use your project requirements to confirm the correct product configuration, drawing, and supporting document set.
FAQ
Common Questions
  • What protection and durability ratings apply to Workersbee GB/T connectors and vehicle inlets?

    The current GB/T connector and vehicle inlet specifications list IP55 protection, an operating temperature range of −30°C to +50°C, UL94 V-0 housing material performance, and a mechanical lifespan of more than 10,000 mating cycles. These ratings apply across the current G3.0 and G4.0 DC connectors, G1.0 AC connector, and AC/DC vehicle inlet range. The applicable protection condition and final configuration should still be confirmed against the selected model, installation method, and operating environment.

  • What should be confirmed when integrating the G4.0 liquid-cooled connector with the charger cooling system?

    The connector configuration must be matched with the charger’s current profile and cooling architecture. Key parameters include the coolant medium, flow rate, operating pressure, cable length, coolant capacity, and charger-side cooling connections. The G4.0 supports water-glycol or silicone-oil configurations, with a reference coolant flow of 1.5–3 L/min and pressure of approximately 3.5–8 bar. Final system parameters should be confirmed for the selected 400A or 600A max-current configuration.

  • What cable length and charger-side termination options are available?

    Project-based options are available for cable length and tail-end processing, including charger-side termination requirements. Please provide the required current, voltage, cable length, stripping dimensions, terminal requirements, and charger-side wiring details. The final cable assembly is subject to engineering confirmation based on the selected product configuration and operating conditions.

  • What is included in a GB/T vehicle inlet assembly, and which interface options need to be specified?

    The standard vehicle inlet assembly includes the inlet, protective cover, cable assembly, electronic lock, and temperature sensor. Cable tail-end processing is configured according to the vehicle-side connection requirements. For project confirmation, please provide the required AC or DC configuration, current, voltage, phase where applicable, cable length, installation drawing, cable routing, and tail-end stripping or terminal requirements. The final assembly will be confirmed according to the vehicle platform and installation layout.

Need GB/T Connector Documents for Your Project?
Share the required product type, current, voltage, cable length, cooling configuration, or vehicle-side interface details. We will help confirm the applicable model and supporting documents.  

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