GB/T Liquid-Cooled DC EV Charging Cable Assembly 250A-600A

Current Rating: 250A – 600A
Voltage Rating: 1000V DC
Cooling Method: Liquid-Cooled
Cable Structure: 2×(2×50mm²+2×2.5mm²+1×6mm²) + Cooling Pipe
Phase Compatibility: DC / Single Circuit
Flame Retardant: VW-1 / FT1
Certifications: GB/T 20234.3, GB/T 33594, RoHS
Protection Rating: IP55 (mated)
Transport Terms: FOB / CIF / Custom Packaging Available

This GB/T liquid-cooled DC charging cable is designed for ultra-fast electric vehicle charging. Thanks to its liquid cooling system, it can safely carry high currents from 250A to 600A. As a result, it keeps connector temperatures stable and supports long charging cycles.

Moreover, it features ETFE insulation, which increases resistance to heat and wear. Combined with a flame-retardant, UV-resistant jacket, this cable offers excellent durability for outdoor and heavy-duty use.

Key Benefits

  • Complies with GB/T 20234.3 and GB/T 33594-2017

  • Liquid-cooled system supports 250A–600A continuous DC charging

  • Cable structure: 2×(2×50–120mm²) + 2×2.5mm² + signal wires (customizable)

  • Efficient cooling keeps the connector within safe temperature limits

  • ETFE insulation adds thermal and mechanical strength

  • Low contact resistance (≤0.2 mΩ) for better power efficiency

  • High insulation resistance (≥1000 MΩ) improves safety

  • IP67-rated when connected — ideal for outdoor use

  • Flame-retardant and UV-resistant outer sheath

  • Customizable cable tail fits EVSE or power cabinets

Technical Parameters

Item Specification
Rated Voltage 1000V DC
Rated Current 250A–600A (continuous)
Cooling Method Liquid-cooled
Contact Resistance ≤ 0.2 mΩ
Insulation Resistance ≥ 1000 MΩ
Dielectric Strength AC 3000V / 1 min
Operating Temperature -40°C to +90°C
Protection Rating IP67 (connected)
Flame Retardancy VW-1 / FT1
Cable Sheath ETFE + liquid-tight construction
Cable Tail Termination Custom terminal lugs or open wire leads

Applications

This cable assembly is ideal for:

  • Public DC fast charging stations

  • Commercial EV charging infrastructure

  • Heavy-duty electric vehicles like buses and trucks

  • Liquid-cooled DC inlet systems in EVs

Packaging and Shipping

Packaging:
Each assembly is packed in a sturdy carton with protective foam. In addition, custom packaging and private labeling are available upon request.

Shipping:
We ship globally by express or freight. Furthermore, tracking numbers are provided with all orders.

Lead Time:
Standard lead time is 10–15 business days. However, custom orders may require more time.

International Orders:
We support worldwide delivery. Please note, duties and taxes are the responsibility of the buyer.

Why choose us?

Two production bases, 12 yearsof production experience

01

Comprehensive R&D, Design, And Manufacturing

A strong R&D team meets diverse industry needs with tailored power cables, wiring harnesses, and charging solutions. Full services from design to mass production ensure high quality.

02

Integrated Production & Precision Management

Full-process production capability from raw materials to finished products. International certifications ensure every production step meets high standards. Smart systems monitor production in real-time, enhancing efficiency and resource optimization.

03

Efficient Supply Chainmanagement & Fast Response

A global sourcing network ensures timely supply of high-quality raw materials. Detailed production planning and scheduling enable quick response and on-time delivery. Optimized inventory management addresses market fluctuations and risks, ensuring supply chain stability and reliability.

Factory strength

Production equipment, production linesand testingequipment

Qualifications & Certifications

Complies with a number of global standards Help products to enter the international market

Frequently Ask Questions

A: Yes, we offer fully customizable services. We will work closely with you to design energy harnesses, connectors, and charging stations that meet your specific requirements and application needs. Our design team ensures that every detail adheres to your technical specifications and functional demands.

A: Absolutely. We provide customized charging stations for both AC and DC applications, with adjustable power ratings and voltage ranges to suit your needs. Whether it’s for residential or commercial use, we can offer a tailored solution for your charging infrastructure.

A: Yes, we support various internationally recognized plug types, including Type 1, Type 2, CCS1, CCS2, and CHAdeMO. We customize our products to ensure compatibility with different plug standards, offering you flexibility in your electric vehicle charging solutions.

A: Our products are designed to endure extreme conditions such as high temperatures, humidity, UV exposure, and chemical corrosion. We ensure that all our energy harnesses and connectors pass rigorous environmental testing, guaranteeing reliable long-term performance even in challenging environments.

A: We collaborate with you from the outset to thoroughly understand your technical requirements. During the design and manufacturing process, we adhere to strict quality management systems such as ISO 9001. We also conduct detailed testing to ensure that the products meet the technical standards and specifications you have set.

A: Yes, we provide samples for you to test and verify the functionality and compatibility of our products. Once you provide feedback on the samples, we can make adjustments to the design as needed to ensure the final product fully meets your expectations.

A: Yes, we offer a wide range of material options, including high-temperature resistant materials, UV-resistant materials, and corrosion-resistant materials. We will select the most suitable materials based on your application’s needs and working environment.

A: Yes, our products are compliant with a variety of international standards such as CE, UL, RoHS, and ISO 9001. We ensure that the products meet the regulations and standards required by different regions and markets.

A: We offer complete charging solutions, including charging stations, EV chargers, cables, and connectors. All components can be customized to your requirements, and we also provide installation and commissioning services to ensure the equipment is up and running smoothly.

A: You can contact our sales team with detailed information about your requirements, and we will provide a customized quote and solution. We will then guide you through the design and production process, maintaining close communication to ensure everything goes smoothly.

Get Started

We aim for open collaboration.

Contact us to get more latest information about our products