Wire Harness Manufacturing in Vietnam & China TEL: +8618033042145 E-mail: sales@sinnhong.com
Products Strategic Manufacturing in Vietnam & China High-Precision Wire Harnesses & Custom Cable Assemblies Tariff-Free Solutions & Resilient Supply Chain for Global Markets

    Custom 800V High-Voltage Renewable Energy Wiring Harness Manufacturer - IATF 16949 Certified

  • Product series:
  • Product type:
  • 800V high-voltage wiring harness for ultra-fast charging EV platforms

  • Lightweight aluminum high-voltage cables for EV range extension

  • IATF 16949 certified high-voltage harness manufacturer for global OEMs

  • EMI shielded high-voltage wiring for electric vehicle power electronics

  • Flame-retardant high-voltage battery cables meeting ISO 19642 standards

  • Recycled copper wiring harness solutions for sustainable EV supply chains

  • Custom high-voltage busbar and cable assembly for integrated battery packs

  • Flexible high-voltage orange cables for space-constrained electric truck chassis

  • Automotive high-voltage terminal and connector systems for multi-voltage platforms

  • Thermal management system wiring harness for EV liquid cooling units

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  • Product Description


    Premium 800V EV High-Voltage Wiring Harness for Next-Gen Electric Vehicles

    As a leading IATF 16949 certified high-voltage harness manufacturer, we provide cutting-edge electrical distribution solutions tailored for the evolving e-mobility landscape. Our 800V high-voltage wiring harnesses are engineered to support ultra-fast charging EV platforms, ensuring maximum power efficiency and thermal stability.

    By integrating lightweight aluminum high-voltage cables, we help OEMs achieve significant vehicle weight reduction and EV range extension without compromising conductivity. Designed for durability and safety, our harnesses serve as the critical backbone for battery packs, power electronics, and motor drive systems in both passenger cars and heavy-duty electric trucks.


    Technical Specifications & Compliance Standards

    To ensure seamless integration into multi-voltage platforms, our assemblies adhere to the most rigorous international automotive standards.

    Feature Specification Details
    Rated Voltage 600V DC / 1000V DC (Optimized for 800V systems)
    Conductor Material High-flex Copper or Lightweight Aluminum Alloy
    Insulation Material XLPE / Silicone Rubber (High-temperature resistant)
    Safety Compliance ISO 19642, LV 216, and Flame-retardant UL94-V0
    Operating Temperature -40°C to +150°C (Short-term peaks up to +175°C)
    Shielding Efficiency EMI shielded 360° coverage for signal integrity
    Protection Class Waterproof IP67, IP68, and IP69K (High-pressure wash resistant)
    Quality Certification IATF 16949:2016 & ISO 9001 certified production

    Product Details


    Why Choose Our High-Voltage Interconnect Solutions?

    • Superior EMI Shielding: Our EMI shielded high-voltage wiring utilizes multi-layer braiding and foil techniques to eliminate electromagnetic interference, protecting sensitive ADAS sensors and power electronics.

    • Thermal Management Integration: We offer specialized thermal management system wiring harnesses designed to connect and control EV liquid cooling units, preventing thermal runaway during rapid charging cycles.

    • Flexible & Compact Design: Our flexible high-voltage orange cables feature a minimized bending radius, making them ideal for space-constrained electric truck chassis and compact motor bays.

    • Sustainable Manufacturing: Staying ahead of 2026 environmental mandates, we offer recycled copper wiring harness solutions to support your sustainable EV supply chain goals and carbon neutrality targets.

    • Custom Integrated Assemblies: We specialize in custom high-voltage busbar and cable assemblies, providing a plug-and-play solution for integrated battery packs that reduces installation time and improves reliability.

    • Extreme Durability: Engineered for harsh environments, our harnesses are resistant to vibration, chemical exposure, and mechanical stress, ensuring a long lifecycle for heavy-duty electric buses and commercial fleets.

    FAQ

    RE:Our wiring harness products are made of various materials, including different types of wires, insulation materials, and casings, to meet the diverse needs and requirements of our customers. We select and use appropriate materials based on customer requirements and specifications, ensuring that they comply with relevant standards and requirements. Our company implements strict quality control procedures to ensure that our products meet or exceed customer expectations.

    Our wiring harness products have excellent electrical characteristics, mechanical performance, and waterproof rating, making them suitable for various applications and environments. Specific performance indicators are determined based on customer requirements and application scenarios, ensuring compliance with relevant standards and requirements.

    We have advanced production processes and equipment that enable us to provide high-quality and efficient production services for our customers, including various processes such as welding, insulation, and wrapping. We determine the most suitable production process based on customer requirements and product specifications, ensuring that the production process complies with relevant standards and requirements.

    We provide reasonable pricing and accurate delivery deadlines for our customers to meet their needs and budgets. Pricing and delivery deadlines are determined based on customer requirements and order conditions, ensuring compliance with relevant standards and requirements.

    We provide samples for customers to try and can offer trial orders for small quantities to ensure that the product meets the customer's needs and requirements. We provide relevant services based on customer requirements and ensure that the samples and trial products comply with relevant standards and requirements.

    We can customize wiring harness products for customers based on their specific needs and requirements to ensure that the product meets their unique requirements and specifications. We work closely with customers to understand their specific requirements and design and produce products based on their requirements and specifications.

    We have a strict quality assurance system and process and hold multiple certifications and certificates such as ISO-9001,ISO-16949 COC SGS etc

    Our Custom process:

    1

    The customer provides product customization requirements and relevant information.

    2

    Our professional technical personnel analyze and evaluate the product requirements, and confirm product details with the customer.

    3

    We provide customers with quotations and production plans.

    4

    The customer confirms the quotation and production plan, and signs the contract.

    5

    We start production and maintain close communication with the customer during the production process.

    6

    We complete production and perform strict quality control testing.

    7

    We deliver the customized products to the customer and provide after-sales service.