Introduction to New Energy Wiring Harnesses
With 20 years of in-depth experience in the wiring harness industry, Nanguandi Electronics specializes in providing integrated solutions of high-voltage, high-current and high-safety new energy wiring harnesses for global new energy clients. As the "energy arteries" and "nerve centers" of new energy equipment, new energy wiring harnesses undertake core functions of high-voltage power transmission, high-current conduction, signal interaction and data communication, directly determining the safety, stability and energy efficiency of equipment operation.
Different from ordinary industrial wiring harnesses, new energy ones are designed to adapt to 400V–1000V high-voltage platforms, 200A–800A high current, a wide temperature range of -40℃ to 150℃ and strong electromagnetic interference environments, which imposes stringent requirements on insulation voltage resistance, fire retardancy, shielding performance, mechanical strength and environmental durability. Backed by mature technological accumulation, a full-process quality control system and flexible customization capability, Nanguandi strictly complies with IATF16949, ISO9001, UL, CE and ROHS standards, effectively solving industry pain points such as high-voltage leakage, overheating, signal disorder, aging and corrosion. Our products are widely used in new energy vehicles, energy storage systems, photovoltaic power generation, charging piles and other industrial equipment, boosting the industry’s safe and efficient development.
Our new energy wiring harnesses adopt a multi-layer composite insulation and special high-voltage shielding structure. The insulation layer, made of high-temperature resistant cross-linked polyethylene and flame-retardant silicone rubber, has a voltage resistance of up to 1000V AC/1500V DC, perfectly compatible with 800V high-voltage fast charging platforms. The core conductors are made of high-purity oxygen-free copper with low conductive loss and strong current-carrying capacity, stably bearing 200A–800A. With tin-plated anti-oxidation treatment, the long-term operation temperature rise is ≤5℃, eliminating overheating risks. All products pass high-voltage insulation, voltage breakdown and leakage protection tests, avoiding high-voltage safety hazards from the source.
To resist strong electromagnetic interference from motors, electronic control units and inverters, our harnesses adopt a dual-layer shielding structure (aluminum foil + tinned copper mesh), effectively isolating electromagnetic clutter and avoiding signal crosstalk or delay. Integrating power, signal, control and communication wires, they accurately connect battery packs, motor controllers, BMS and on-board chargers, ensuring stable power supply and real-time data interaction.
The outer sheath is made of high-performance flame-retardant, oil-resistant and corrosion-resistant materials, suitable for complex scenarios like outdoor use and vehicle installation. It has a wide temperature resistance of -40℃ to 150℃, IP67 dustproof and waterproof grade, and a reinforced tensile structure to withstand millions of vibrations, meeting the requirements of new energy vehicle chassis and battery packs. For narrow spaces, our harnesses adopt high-flexibility multi-strand conductors with a minimum bending radius of 3 times the wire diameter, enduring 5 million repeated bends, and support compact and concealed wiring for easy installation and maintenance.
We provide one-stop customization services covering harness length, wire core specification, branch direction, terminal models (HVIL high-voltage interlock terminals, energy storage dedicated terminals), connector types and wiring definitions. We produce various harnesses for new energy passenger vehicles, commercial vehicles, energy storage stations, photovoltaic inverters and charging piles, offering full-chain services from R&D, sample prototyping to mass production and after-sales support, shortening customers’ development cycles.
Adopting top-grade raw materials and precision production technologies, our products have a dimensional accuracy of ±0.1mm and a service life of over 10 years, far exceeding the industry average. Every harness undergoes comprehensive tests (bending fatigue, high-low temperature cycling, chemical corrosion, etc.) with 100% full inspection to ensure zero defective products. We strictly screen raw materials complying with UL/CE standards and establish long-term cooperation with high-quality suppliers to guarantee stable supply.
We introduce fully automatic equipment (Model: JH-8000 wire cutting & stripping machine, KZ-600 servo crimping machine) to realize automatic production, with wire cutting error ≤±0.1mm and crimping pressure accuracy ±0.1N. Key positions use high-precision laser welding to avoid heat generation and signal loss. Our technical team conducts differentiated protection on movable and fixed parts, adding insulation layers to high-voltage harnesses to reduce short circuit risks.
We have a full-process quality control system complying with IATF16949 and ISO9001, with real-time parameter recording for full life cycle traceability. Our professional testing laboratory is equipped with high-voltage withstand testers, salt spray test chambers and other equipment to ensure product quality. We participate in customers’ early design, offer professional suggestions, and provide rapid sample making, short delivery cycles and lifelong technical support, ensuring customers’ peace of mind.
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