Our Certificate
3F Electronics Industry Corp.Ltd passed the ISO9001 International Quality System certification in 2001,2009 in 2009 through TS16949 and QC080000 quality system, products obtain this CCC mandatory certification, American insurance laboratory UL certification.
Our Factory
3F Electronics Industry Corp.Ltd has insulation material plant, copper line processing plant, crossline irradiation plant.
Competitive price
We offer competitive prices and aim to provide our customers with affordable and cost-effective solutions.
Our service
The company is committed to training professional customer service personnel to provide customers with perfect products and multi-directional professional services.
What is Automotive Wire
As the name suggests, automotive wire is the wiring system used in various automobiles, irrespective of the car type. It brings reliability and quality to the table. Its application is quite universal; however, choosing the wrong wire for your car engine can cause disaster due to its location near the highly flammable liquids.
-
GXL Tinned Copper Core Low Voltage Low Frequency Instrume...GXL XLPE insulated low-voltage automotive cables are used to connect and power sensors and instrument panels of automobiles. They transmit signals and electrical energy, allowing the driver to monitor various parameters and indications...view more
-
SGX Car WireSuitable for all conventional wire harness processingview more
The starter grounding device of cable
Excellent mechanical properties
Tensile strength≥10MPa
elongation at break≥150%
In line with ROHS/REACH
If you have... -
AVS Japanese standard car wireExcellent mechanical propertiesview more
Harness processing process good compatibility
Withstand voltage
Good flame retardant
Can be twisted pair and multi-core
ROHS/REACH compliant
Benefits of Automotive Wire
Durability and Reliability
Automotive wires are subjected to a wide range of challenging conditions, including temperature fluctuations, vibrations, moisture, and exposure to chemicals and fuels. As a result, they must exhibit exceptional durability and reliability to maintain their performance over the vehicle's lifespan. Ensuring the use of high-grade materials and proper manufacturing techniques is critical in minimizing wear and tear, preventing shorts, and avoiding potential electrical failures.
Safety and Risk Mitigation
The safety of passengers and the vehicle itself heavily depends on the proper functioning of automotive wiring. Faulty or compromised wiring can lead to electrical failures, posing risks of fire, loss of critical functions, or even accidents. High-quality automotive wires undergo rigorous testing and comply with industry safety standards to reduce the risk of such hazards, providing peace of mind to both drivers and passengers.
Compatibility with Advanced Technologies
As automotive technology advances, vehicles are equipped with an array of sophisticated features, such as autonomous driving capabilities, connected car functionalities, and smart infotainment systems. These innovations rely heavily on precise and reliable electrical connections. Automotive wires that meet the demands of high data rates and low latency are essential to enable these advanced technologies to perform at their best.
Simplified Diagnostics and Maintenance
Well-organized and clearly labeled automotive wiring harnesses facilitate easier diagnostics and maintenance. Properly labeled wires enable technicians to identify and troubleshoot issues efficiently, reducing downtime and repair costs. Clear wiring documentation is also beneficial during vehicle assembly, service, and repair operations.
What Are The Properties Of Automotive Wire?




Wire Size
A primary aspect of vehicle wiring is size because the amount of current it can carry is directly related to its thickness and length.Signal wires, like those from a sensor to a computer, don't need to be very big since the amperage is fairly low.On the other hand, major power applications like alternators and electric motors require bigger wires to support the load.Also, there is a voltage drop since any time you run wires; you lose a certain amount.
Wire Material
The material used to make wires is just as important as its gauge.You will find most wires use copper, which is an ideal material for various electrical applications.However, despite all of its advantages in electricity, copper tends to be very expensive. Some of the other possible alternatives include copper-clad aluminum and standard aluminum.These materials conduct about 40% less electricity than their copper counterparts.Therefore, if you decide to use them, you must get larger wiring to heat more.
Length
There is a direct correlation between the length of the wire and its overall electrical resistance.The longer a wire is, the greater the resistance it will encounter, leading to energy loss.
Bundling
Automotive wires are typically copied to ensure they remain organized, and each goes to its assigned destination.Nonetheless, the way they are packed can, at times, affect their capability to dissipate heat effectively.A wire bundle containing various wires can only carry a fraction of the current that it would carry if there is just a single wire in the bundle.
Types of Automotive Wire
SXL Wire features a cross linked polyethylene jacket that can withstand higher heat, abrasion, and aging better than GPT wire. It is often the preferred choice in higher stress applications like race or industrial use vehicles. If you are looking for extra durability, this is a good choice.GXL and TXL wire feature the same type of insulation but thinner walls to make it easier to pull through tight spaces.
Speaker wire is a paired stranded wire intended for audio applications. As the name implies it is meant to carry the 'sound' from a stereo receiver to the speakers. It is intended for low voltage use and should never be used to carry load. Speakers can run in 'reverse' (out of phase) but they will sound terrible - so it is important that the + and - terminals be connected correctly.
Battery cable is typically used to connect the battery to the car's electrical system (typically at the starter) and ground. It is larger gauge, heavier wire. Battery cables are most susceptible to corrosion, and can often be corroded inside the cable where it can't be seen. If you are having starting issues, check your battery cables carefully.
Trailer wire is typically GPT or Primary wire that is colored and configured for common trailer applications. Most trailers use a common coloring system that uses Green, Yellow, Brown, and White for the various lighting functions. Purchasing 'Trailer' Wire makes a trailer re-wiring or repair project simpler. It also helps in future diagnosis of problems.
Application of Automotive Wire
Automotive Industry
In the automotive industry, Automotive Wire are widely used for wiring harnesses, battery cables, spark plug wires, and sensor cables. Their high-temperature resistance and flexibility make them suitable for the demanding conditions under the hood, ensuring reliable electrical connections and optimal performance.
Aerospace and Aviation
Automotive Wire are vital in the aerospace and aviation sectors and are utilized in avionics systems, aircraft engines, and lighting systems. Their ability to withstand extreme temperatures, mechanical stresses, and harsh environments makes them an ideal choice for these critical applications.
Renewable Energy
Automotive Wire are widely used in renewable energy systems, including solar power plants and wind farms. Their weather resistance, high-temperature tolerance, and excellent electrical properties make them well-suited for transmitting power generated by solar panels or wind turbines.
Medical Equipment
In the medical industry, Automotive Wire are commonly employed in medical devices, diagnostic equipment, and surgical instruments. Their biocompatibility, flexibility, and chemical resistance make them safe and reliable for use in medical environments.
Industrial Automation
Automotive Wire find extensive use in industrial automation systems, robotics, and machinery. Their flexibility, high-temperature resistance, and excellent electrical properties enable seamless transmission of power and signals in highly dynamic and demanding environments.

Automotive wires are often used in harsh environments of your vehicle. For instance, they're used in the engine where if house wires were in the application, they could easily get damaged upon coming into contact with battery acid.
In contrast, automotive wires can withstand high temperatures and chemical corrosion. Also, automotive Wiring is a more robust and secure jacket while maintaining more flexibility than house wires.
A common mistake many people make is opting for house wires to serve automotive purposes simply because they're cheaper. Even if the housing wire you picked fits the ideal current carrying capacity, several other factors remain to consider.
Components of Automotive Wire
Connector
The connector component manifests its name: it connects the harness wires to the different circuits and power sources. A typical connector will have a male pug end and a female jack end. Both ends join together to transmit the current.However, connectors are of different types, depending on the harness. They also come in different materials, with the best ones being brass and copper.
Fuse
Generally, the work of a fuse is to protect electrical components if something goes wrong. For example, when the current is excessively high. When talking about cars and their wiring harnesses, it's no different.The wiring harness fuse features a wire that'll easily melt at a certain current level. When it melts, it breaks the circuit.
Fuse Block
Each circuit in the wiring harness has a separate fuse. That means one fuse going bad won't affect all components. A fuse block is like a house where you assemble the different fuses. It's similar to a distribution board.
Relay
The relay component of an auto wiring harness works for high current circulation. It's one of the most important components, drawing power directly from the battery. In contrast, some components draw power from other car system parts. Consequently, the relay component can deliver a powerful current from a low one.
Wire
A wiring harness is an assembly of electrical cables or wires. The cables or wires are the components in view here. These are usually copper wires and come in different circuit measurement variants.For example, the horns and headlight circuits use a 1.5 gauge wire. But the circuits for dome and door lights use a 0.5 gauge wire. It's critical to confirm the current value of a circuit when purchasing a wire for it.
How to Choose Automotive Wire
Quality
Look for a supplier that offers high-quality automotive wires that meet industry standards and specifications. The wires should be durable, corrosion-resistant, and capable of withstanding high temperatures and vibrations.
Variety
A good supplier should offer a wide range of automotive wires to cater to different needs and applications. This includes primary wire, cross-linked automotive wire, battery cable, and more. Having options allows you to choose the most suitable wire for your specific requirements.
Certification
Ensure that the supplier has the necessary certifications and compliance with relevant standards, such as iatf 16949. This certification ensures that the supplier follows strict quality control processes and procedures.
Technical support
Look for a supplier that provides excellent technical support and assistance. They should be knowledgeable about automotive wiring and capable of guiding you through the selection process.
Customer reviews
Take the time to read customer reviews and testimonials about the automotive wire supplier. This will give you insights into the supplier's reputation, customer service, and the quality of their products.
Pricing and delivery
The supplier's pricing structure and delivery options. Make sure they offer competitive prices without compromising on quality. Additionally, check their delivery times and ensure they can meet your project deadlines.
Process of Automotive Wire
Design
Like any other electronics manufacturing, the manufacturing process of wire harnesses always begins with an appropriate design. They can be found anywhere – behind an automobile glove box or in the panel of industrial machinery or washing machine. They deliver data and power in a streamlined way. The designs would vary across these applications. So, creating a custom design is one of the challenging aspects of the wire harness manufacturing process. In this stage, the design engineers also need to address the performance issues the wire harnesses may encounter during the regular operation. In addition to this, they also need to fix components, as well as decide on components, materials, and other aspects.
Prototyping
It is always beneficial to have a functional prototype of a wire harness to eliminate further downtime. This helps an engineer or product engineer understand how the wire harness will work in a real-time environment.
Production and Assembly
The wire harness manufacturing process is largely manual, unlike other electronic manufacturing processes. These assemblies often work as components for large parts. It is because wire harnesses require a high level of customization. Manual assembly helps resolve electric and geometric issues associated with the manufacturing of certain complex products. The following are a few important steps involved in the wire harness manufacturing process.
Wire Cutting
In this step, the wires are cut to the required length using a wire-cutting machine.
Stripping and Connections
In this step, the wires are stripped to attach connector modules, housings, or terminals.
Assembly
In this step, the wires are harnessed using an assembly board.
Testing
Safety testing is an essential aspect of any electronics manufacturing project. In this phase, the wire harnesses are tested rigorously to check their utility and sustenance in real environments.
How to Maintain Automotive Wire
Choose automotive wires that conform to relevant industry standards and regulations, including those related to insulation materials. Meeting these standards ensures that the wires have undergone rigorous testing for safety, performance, and durability.
For added durability and protection, consider using wires with multiple layers of insulation. Multi-layered insulation can enhance the wire's resistance to various environmental factors, providing an extra level of safeguarding against potential damage.
Even with high-quality insulation, proper installation and routing of automotive wires are crucial. Wires should be routed away from heat sources and moving components, preventing unnecessary wear and tear on the insulation. Securely fastening wires using appropriate clips and supports helps prevent abrasion and vibration-related damage.
Regularly inspecting the wire insulation for signs of wear, damage, or degradation is essential for early detection of potential issues. Promptly replace any wires showing signs of deterioration to prevent electrical problems or safety hazards.
The International Automotive Task Force (IATF) has introduced the IATF 16949 standard, which is a critical certification for automotive wire manufacturers. IATF 16949 specifies quality management system requirements tailored to the automotive industry. Manufacturers that achieve this certification demonstrate their commitment to delivering high-quality products that meet stringent automotive industry standards.
Automotive wire manufacturers must use materials that meet specific requirements for electrical conductivity, thermal resistance, insulation properties, and environmental durability. The materials should be carefully selected and tested to ensure they can withstand the challenging conditions in automotive environments.
Our Factory
3F Electronics Industry Corp was established in 1996, after more than 20 years of continuous accumulation, 3F has become a group enterprise. The fields involved are: insulation materials, copper conductors, irradiation processing, wire harness processing, new energy, special cables, household cables, locomotive cables, communication cables, aerospace cables, insulating sleeves, cable accessories, etc. Annual sales of more than 1 billion yuan. The group is headquartered at No. 5, Zhenxing Road, Science City, Guangming District, covering an area of 20,000 square meters and self-built factory buildings of 35,000 square meters.

Certificate

FAQ
We're well-known as one of the leading automotive wire manufacturers and suppliers in China. Please feel free to buy or wholesale high quality automotive wire in stock here from our factory. Contact us for quotation.

