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Heavy-Duty Triple Insulated Wire for Industrial Machinery

Triple-insulated wire (TIW), is a specialized type of magnet wire that has three distinct layers of insulation surrounding the conductor. This type of wire is designed to offer enhanced electrical insulation, safety, and performance in various electrical and electronic applications.
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Overview


The Heavy-Duty Triple Insulated Wire is a rugged electrical conductor designed for industrial applications requiring maximum safety and durability in harsh environments. Featuring three distinct insulation layers—an inner polyimide layer, a middle fiberglass braid, and an outer PVC sheath—this wire provides superior protection against mechanical impact, chemical exposure, and electrical faults.


Features


Triple Insulation System:

Layer 1: Polyimide enamel (150°C rating) for primary electrical isolation (500V dielectric strength).

Layer 2: Braided fiberglass reinforcement increases tensile strength to 500N and resists abrasion from moving parts.

Layer 3: Flame-retardant PVC sheath (UL94 V-0) with oil-resistant additives, ideal for machinery lubrication environments.

Safety Compliance: Meets IEC 60332-1 for flame resistance and EN 60811 for chemical resistance, reducing downtime from wire failures.

Extreme Environment Rating: Operates from -40°C to +125°C and withstands 10,000+ bend cycles at a 10mm radius, suitable for robotic arm wiring.

High Current Capacity: Available in 10-4AWG sizes, supporting up to 85A continuous current in heavy-duty motor circuits.

EMI Shielding Option: Optional tinned copper braid shield (85% coverage) reduces electromagnetic interference in control system wiring.


Application


Industrial Robots: Used in articulated arm wiring harnesses, resisting oil, grease, and repetitive motion fatigue.

Mining Equipment: Suitable for underground drills, conveyors, and pumps exposed to dust, water, and high vibrations.

Heavy Machinery: Critical for excavator control systems, crane electrification, and agricultural tractor wiring.

Power Generation: Installed in gas turbine control panels and generator leads, maintaining reliability in high-temperature, high-moisture environments.


Faq


Q: Can this wire be used in explosive atmospheres?

A: The flame-retardant sheath meets ATEX standards for non-sparking applications when used with approved cable glands.

Q: What is the maximum voltage rating for the triple-insulated version?

A: Standard models are rated for 600V AC; higher voltage (1kV) variants are available with thicker insulation layers.

Q: How should I terminate the fiberglass braid layer?

A: Trim the braid 5mm back from the outer sheath and secure with heat-shrink tubing to prevent fraying during termination.


Yusheng Insulated Wire Category:

  1. Polyester Insulated Wire

  2. Polyester Insulated Litz Wire

  3. Teflon Insulated Wire

  4. Teflon Insulated Litz Wire

  5. Taped Insulated Wire

  6. Taped Insulated Litz Wire

  7. Self-Bonding Coil

  8. PPS&PEEK Insulated Wire


Insulated Material&Conductor Types

  • In addition to our standard three-layer insulated wires, we offer customized insulation layers tailored to meet specific requirements. Our insulation materials range from PET, PA, ETFE, FEP, PFA, PI, PPS, to PEEK, catering to various manufacturing needs. For conductors, we provide tinned copper wires, enameled wires, bare copper wires, and low-loss wires.


Temperture&Withstand Voltage

  • Our Teflon-litz and taped-litz wires are also available in a flat wire form using specialized processing techniques. Our products meet a wide range of temperature resistance standards, from 130°C Class B, 155°C Class F, to 180°C Class H. In terms of voltage resistance, our wires easily support up to 6KV and can be customized to meet higher voltage requirements as per client needs.


Safety Regulation

  • Our products comply with safety regulation, including UL2353, UL60950, UL1446, IEC/EN62368, and IEC/EN60065. Besides component UL certifications, we also offer UL system certifications developed by Yu Sheng, allowing our customers to expedite their R&D processes efficiently.


wire spec


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Suzhou Yusheng Electronic Co., Ltd. was established in 2005. It is a production enterprise integrating R&D, manufacturing and sales.

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