| Parameters |
Specifications |
| Conductor material |
Tinned copper (conductivity ≥ 98%) |
| Insulation material |
TPE (105-125ºC)/PVC (85-105ºC) |
| Temperature range |
-40°C~125°C (standard)/150°C (high temperature) |
| Voltage level |
Low voltage: 60V DC / High voltage: 600V DC |
| Wire cross-sectional area |
0.13mm²~35mm² (commonly used 0.5/1.0/2.5mm²) |
| Protection level |
IP67 (connector)/IP54 (whole) |
| Bending life |
≥500,000 times (dynamic parts such as car doors) |
| Flame retardancy |
UL94 V-0 (vertical burning ≤10 seconds self-extinguishing) |
1. Product Introduction
Automobile Wire Harness is the core component of the vehicle electrical system. It consists of multiple wires, connectors, terminals, protective sleeves, etc., and is integrated and assembled according to the vehicle circuit design. It is responsible for transmitting power, signals and data to ensure the stable operation of various electronic devices in the vehicle (such as ECU, sensors, lighting systems).
Main features:
Modular design: divided by function (engine harness, body harness, chassis harness, etc.).
High-precision processing: fully automatic crimping and ultrasonic welding processes are used to ensure low resistance (≤5mΩ).
Environmental adaptability: high temperature resistance (-40°C~125°C), oil resistance, and vibration resistance.
2. Core advantages
Lightweight design: using thin-walled wires (0.13~0.5mm²), which is 20% lighter than traditional harnesses.
EMI protection: twisted pair + aluminum foil shielding (coverage ≥90%) to reduce CAN bus signal interference.
Quick assembly: waterproof connector (IP67) and color coding to reduce installation errors.
Long life: TPE/XLPE insulation material, durability up to 15 years or 250,000 kilometers.
Compliance: Meets ISO 6722, SAE J1128 and other automotive cable standards.
3. Typical applications
| Vehicle part |
Functional description |
Harness type example |
| Engine compartment |
ECU power supply, sensor signal transmission |
High temperature shielded harness (resistant to 150°C) |
| Body interior |
Instrument panel, seat heating, audio system |
Thin-walled low-voltage harness (0.35mm²) |
| Chassis |
ABS, suspension control, headlights |
Wear-resistant corrugated tube protection harness |
| New energy three-electric |
High-voltage battery pack, motor, charging interface |
Orange high-voltage harness (600V/30A) |
4. Safety instructions
Installation specifications:
- Sharp bends are prohibited (minimum bending radius ≥5×wire diameter).
- Use harness ties to fix, spacing ≤200mm.
Voltage matching: High-voltage wiring harnesses (new energy vehicles) require special insulating tools for operation.
Waterproof treatment: Cover the connector with a dust cap when not in use.
Regular inspection: Use a megohmmeter to test the insulation resistance (≥100MΩ) every 2 years.
5. FAQ
Q1: Can it be modified for old cars?
A: The circuit diagram needs to be checked. It is recommended to be adapted by a professional technician (the voltage/interface may be incompatible).
Q2: How to distinguish between original and aftermarket wiring harnesses?
A: Original parts have OEM numbers, and aftermarket parts usually have no laser engraving.
Q3: How to troubleshoot short circuits in wiring harnesses?
A: Disconnect in sections + multimeter continuity test, focusing on friction areas (such as door hinges).
Q4: Safety risks of new energy high-voltage wiring harnesses?
A: It must be operated by a certified person and wait for 5 minutes after power failure (capacitor discharge).
6. Summary
Automotive wiring harnesses are the "neural network" of the vehicle's electrical system, and their reliability is directly related to driving safety. When purchasing, you must strictly match the model and certification standards, and give priority to models with modular design and EMI shielding. New energy vehicle wiring harnesses require extra attention to high-voltage protection (IP6K9K). Regular maintenance can extend the service life.
99.9% oxygen free copper material, copper core, non flammable and safer to use. The outer skin is made of brand new PVC material, which is soft, durable, effectively oxidized, odorless, safe to use, and can be purchased and used with confidence.
Using environmentally friendly new wire, the outer layer is tough and resistant to pulling, bending and not easily broken. The internal and external materials are flame retardant and not easy to burn, so you can use it with confidence!
High-quality flame-retardant materials: polymer materials have the advantages of flame retardancy and high temperature resistance; phosphor bronze gold-plated/tin-plated, with the advantages of wear resistance and corrosion resistance.
High-tech anti-oxidation technology: improve the anti-oxidation and anti-corrosion capabilities, and maintain the characteristics of the metal surface.
| Vehicle part |
Functional description |
Harness type example |
| Engine compartment |
ECU power supply, sensor signal transmission |
High temperature shielded harness (resistant to 150°C) |
| Body interior |
Instrument panel, seat heating, audio system |
Thin-walled low-voltage harness (0.35mm²) |
| Chassis |
ABS, suspension control, headlights |
Wear-resistant corrugated tube protection harness |
| New energy three-electric |
High-voltage battery pack, motor, charging interface |
Orange high-voltage harness (600V/30A) |
Lanka Industrial Automation Shanghai Co.,Ltd is an advanced manufacturer integrating research and development, production, sales and service together, We specialize in developing and manufacturing special cables.
The main products are power cords, robot cables, reel cables, flat cables, spiral cables, CE certified flexible cables, data cables, special customized cables, etc. The company has a strong technical research and development team, the core technical team consists of several professional Composed of a team of senior engineers with professional background, the technical team makes full use of profound professional theory and rich practical experience to independently research and develop, constantly penetrate the heart, and the quality is guaranteed.
In 2020, it will obtain the TILVA certification for industrial robot flexible cables from the National Robot Testing and Evaluation Center. Products are widely used in key projects such as industrial robots, CNC machine tools, laser equipment, logistics systems, packaging equipment, lifting systems, lifting equipment, etc. Excellent quality and service have received widespread praise from the industry and customers.
Sample
Give your requirements to us, we recommend the suitable cables for you, samples is free if we have stock, if not, we could customize it, then charging some cost for sample.The samples'fee will return to you when we got your order more than 1000USD.
Usually, samples will provide within 3 days.if you need to customize then we need 1-2 weeks.
Payment
We accept bank transfer, Paypal and West union., if in some other way please check with us.
Warranty
If it is our quality problem then we will afford the freight for you to replace the cables.
Advantages
Production and testing equipment more than 100 sets,
R&D engineers: 12
management teams all have more than ten years; work experience in cable industry.
Packaging
Spiral cable and cable harness are packed in carton, then in wooden pallet.
PVC cable and Pur cables are packed in wooden drum and in wooden box.
We will pack the cable in good condition according to the size.
Delivery
According to customer's choices.Sample usually sent by express. Bulk goods can be sent by air, by sea.
Please contact with us for shipping cost., we have discount with DHL, TNT, UPS, FEDEX and cooperated with shipping agent If you don't have the express account.
Lead time:Normally, 10-20 days
Q 1: I didn't find my needed model in this page.
Answer: Dear Friends, catalog will emailed to you asap when you contact with us. Also, we supply customization service. So, contact us !
Q 2: What's your Minimum Order Quantity?
Answer: Normally, 10pcs for mass production.
Q 3: When can I get the price and what's the validity?
Answer: usually within one day.Validity is 30 days
Q 4: What's your payment terms?
Answer: By T/T 30% in advance ; Balance 70% before shipment.
Q 5: What's your delivery time?
Answer: It depends on whether we just have the stock for your type. Or, it takes about 10 - 30 days for normal orders.
Q 6: What's your package method ?
Answer: Usually, it's cartons, and for big cable, we use wooden drum.
Any other questions please contact with us freely:)
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