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Jiangsu Silver& Tin Thread Hi-temperature Wire and Cables Co., Ltd.
UL Wire For Automotive Wholesale
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Jiangsu Silver& Tin Thread Hi-temperature Wire and Cables Co., Ltd.
Jiangsu Silver& Tin Thread Hi-temperature Wire and Cables Co., Ltd., is China UL Wire For Automotive Supplier and UL Wire For Automotive Factory, founded in Taizhou, Jiangsu Province in 1994, successfully registered the "Yuanzhi" trademark in 2002. The company specializes in the production and R&D of high-quality high-temperature cables. Its products primarily use Teflon, silicone rubber, flame-retardant polyethylene, and fire-resistant mica tape as insulation materials, and pure nickel, silver-plated, nickel-plated, tin-plated, and oxygen-free bare copper wire as conductors. The production process involves more than twenty steps, including wire bundling, cabling, stranding, extrusion, rubber extrusion, shielding, braiding, and coating. The company manufactures nearly a thousand specifications across eight major series, including cables for electrical equipment, control systems, signal transmission, computers, compensation, fire resistance, high and low temperature resistance, and high voltage resistance. Currently, it has the production capacity for conductor cross-sections up to 400mm², voltage up to 100kV, and temperature ratings from -65°C to +1200°C.
Our company's products are manufactured according to advanced international and national standards. Its garden-style production base has passed ISO9001 quality management system certification and is a "Comprehensive Quality Management Standard Compliance" enterprise certified by the Ministry of Agriculture. Our products have received CCC quality certification, UL safety certification (USA), and have been recognized as a "Famous Product of Township Enterprises in Jiangsu Province." They have passed the full sampling inspections conducted by the National Wire and Cable Testing Center, the Provincial Quality Supervision and Testing Center, and the Taizhou Municipal Bureau of Quality and Technical Supervision. Listed as a "Key Protected Product of Taizhou City," our products are used by large enterprises like Chunlan and high-tech fields such as the 95856th Unit of the Ministry of Aerospace Industry. Some products are exported. To further demonstrate our commitment to providing peace of mind to our customers, our products have been insured with the People's Insurance Company of China for many years. We are a company that "honors contracts and keeps promises."
Our company will continue to adhere to the quality policy of "meticulous quality control, unwavering commitment to customers, and technological advancement for enterprise development," with "customer satisfaction" as our guiding principle, and comprehensively expand the "Yuanzhi" business.
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UL Wire For Automotive Industry knowledge

In modern vehicle manufacturing, the electrical system acts as the vehicle's nervous system, and wires certified by UL (Underwriters Laboratories) are the cornerstone of its safe operation. UL-standard automotive wire not only represents internationally recognized levels of flame retardancy and electrical safety but also serves as a critical entry requirement for the global supply chain. Jiangsu Silver & Tin Thread Hi-temperature Wire and Cables Co., Ltd. is dedicated to the R&D of UL-compliant high-temperature automotive hook-up wires, specifically designed for the demanding environments found in engine compartments, sensor systems, and new energy battery packs.

When selecting connection wires, automotive engineers prioritize insulation stability under extreme temperature fluctuations. Our "Yuanzhi" brand UL automotive wires utilize specialized Fluoroplastics (FEP/PFA/ETFE), capable of long-term operation in temperature ranges from -60°C to +250°C. This far exceeds the heat resistance of standard automotive wires, ensuring the electrical system remains reliable throughout the vehicle's entire lifecycle.

Technical Matrix: UL Standards for Automotive Excellence

UL-compliant automotive wires are defined by specific style numbers that dictate their material properties and application scope:

UL Style Insulation Material Temp / Voltage Automotive Application
UL 1330 FEP (Fluoroplastic) 200°C / 600V Engine Control Units (ECU)
UL 1332 FEP (Fluoroplastic) 200°C / 300V Sensors & Dashboard Wiring
UL 10362 PFA (Fluoroplastic) 250°C / 600V Turbocharger & Exhaust Sensing
UL 1514 Silicone Rubber 150°C / 600V Ignition Cables & Flexible Links

Advanced Engineering for Automotive Reliability

At Jiangsu Silver & Tin Thread, we optimize every key metric of our UL automotive wires to meet the specialized needs of the vehicle industry:

Excellent Chemical and Oil Resistance

Automotive interiors are filled with fuel, lubricants, coolants, and brake fluids. Standard wires often harden and crack under long-term exposure to these fluids. Our Fluoroplastic UL wires possess near-perfect chemical inertness, blocking fluid penetration to prevent short circuits and significantly extending maintenance intervals.

Superior Flame Retardancy (VW-1 Grade)

Safety is the bottom line. Our UL automotive wires have all passed the rigorous UL VW-1 Vertical Flame Test. In the event of a fire, the insulation does not easily ignite and does not release toxic, heavy smoke, buying precious time for passenger evacuation and fire suppression.

Primary Application Areas

  • EV Powertrain Systems: Used for Battery Management System (BMS) sensing and motor controller internal wiring.
  • High-Temperature Engine Zones: Ideal for oxygen sensors, knock sensors, and turbocharger signaling.
  • Lighting & Instrumentation: High-performance connections for LED headlamps and precision digital cockpits.
  • Autonomous Driving Systems: High-fidelity signal links for onboard cameras and radar to ensure EMI resistance.

Why Trust Jiangsu Silver & Tin Thread?

Founded in 1994, Jiangsu Silver & Tin Thread Hi-temperature Wire and Cables Co., Ltd. has focused on high-temperature specialty cable R&D for over 30 years. We are IATF 16949 and ISO9001 certified, ensuring our manufacturing processes meet the stringent requirements of the world's leading automotive OEMs.

Our UL automotive wire series comply with UL, CE, CCC, and RoHS international certifications. Every reel undergoes strict insulation endurance and aging tests before leaving the factory. Backed by global insurance from PICC, we provide a solid safety foundation for every journey.

UL Wire For Automotive Industry FAQ

1. Why is UL certification mandatory for automotive wires?

UL certification is a globally recognized safety endorsement, ensuring wires won't ignite or leak electricity under specific loads. For automakers, it is a necessary measure to comply with international regulations and mitigate product recall risks.

2. What is the difference between Fluoroplastic and standard PVC automotive wire?

Temperature and Size. Fluoroplastic wires (e.g., UL 1330) resist heat up to 200°C+, whereas PVC wires usually cap at 105°C. Furthermore, Fluoroplastic’s high dielectric strength allows for thinner insulation, reducing wire harness volume and weight—perfect for automotive lightweighting.

3. Do automotive wires have environmental requirements?

Yes. Modern automotive standards require wires to be RoHS and REACH compliant, meaning they are free of hazardous heavy metals like lead and mercury. Our wires meet these green regulations while maintaining high performance.