Custom EV Wiring Harness | High-Voltage, IP67, 300A Certified

In the fast-evolving landscape of electric mobility, the demand for precision-engineered custom EV wiring harnesses has never been more critical. As a certified national high-tech enterprise and a Guangdong "Little Giant," Dongguan Nangu Di Electronics Co., Ltd. has been at the forefront of this revolution since 2006. Our expertise lies in designing and manufacturing wire harnesses that meet the stringent requirements of electric vehicles, energy storage systems, and industrial automation. With a total factory area of 12,000 square meters across two production bases in Humen, Dongguan, we are equipped to handle everything from rapid prototyping to large-scale production. Our team of 316 professionals includes 35 dedicated R&D engineers who average over a decade of industry experience, ensuring that every custom EV wiring harness we produce is optimized for performance, safety, and cost-efficiency.
Our production capabilities are enhanced by advanced machinery and rigorous quality control systems. We are ISO9001, ISO13485, IATF16949, and UL certified, which underscores our commitment to international quality standards. Our quality management ensures a 98% product qualified rate, and we hold more than 40 patents, reflecting our innovative approach to harness design. From high-voltage battery cables to low-voltage signal wires, our range includes PVC, XLPE, PTFE, and neoprene insulations, with conductor options like tin-plated copper and custom connectors. For electric vehicles, we specialize in high-voltage harnesses rated up to 1000V and 300A, designed to withstand extreme temperatures and vibration. Our engineering team collaborates closely with clients to understand their specific requirements, utilizing 3D modeling and simulation tools to optimize routing and reduce weight. This approach has led to success stories across the globe, such as partnering with a European EV startup to develop a lightweight harness that increased vehicle range by 8%.
We also prioritize sustainable manufacturing. Our processes minimize waste and energy consumption, aligning with global environmental standards. We offer one-stop services from initial consultation, design, prototyping, and mass production to global shipping. With a dedicated sales and support team, we provide prompt quotes and technical assistance, ensuring a smooth experience. As the industry moves toward higher voltage systems and smart connectivity, Nangudi remains your trusted partner for custom EV wiring harness solutions.