Dedicated to perfecting triple-insulated wire
Dah Jin Technology Co., Ltd. is a professional manufacturer of Triple Insulated Wire (TIW) in Taiwan, established in October 2002, with deep expertise in insulated winding wire manufacturing. We believe that for the manufacturing industry, precise control of quality and cost is the most critical task. We welcome collaboration across all sectors!
Registration Details (Public Record)
The following information is verified against the public registration data from the Ministry of Economic Affairs. You are welcome to verify; for business inquiries and quotations, please contact the liaison window below.
| Company Name | Dah Jin Technology Co., Ltd. |
|---|---|
| English Name | DAH JIN TECHNOLOGY CO., LTD. |
| Unified Business Number | 80055483 |
| Approval Date | October 8, 2002 |
| Paid-in Capital | NT$ 29,760,000 |
| Industry | Wire and Cable Manufacturing |
| Registered Address | No. 330, Dashun Street, Nanbao District, Guiren, Tainan City |
What is Triple Insulated Wire (TIW)?
Three Independent Insulation Layers
The conductor is covered with three independent insulation layers. Unlike conventional enameled wire that requires additional insulation tape and barriers, triple insulated wire provides sufficient interlayer isolation within the winding itself.
Achieves Enhanced Insulation Grade
Three independent insulation layers can serve as enhanced insulation grade winding wire components compliant with IEC 62368-1 Annex J / IEC 61558-1 Annex K, commonly used for primary/secondary isolation in isolation transformers.
Smaller and More Reliable
By eliminating additional insulation tape and barriers, triple insulated wire reduces transformer volume, increases winding density and production consistency, and is widely used in safety-critical components such as chargers and power supplies.
The Evolution of Insulated Winding Wire
Enameled Wire Era
In the early 20th century, the invention and industrialization of enameled wire drove insulated winding wire toward large-scale application.
Triple-insulated wire (TIW) invention
U.S. Rubadue Company invented triple-insulated wire—replacing the traditional "enameled wire + insulation tape + barrier" structure with three independent insulation layers, enabling reinforced insulation grade to be achieved directly in the winding layer.
Fully insulated wire development
Germany began developing fully insulated wire, advancing insulated winding wire toward higher safety standards and smaller volume.
DAH JIN deep expertise in TIW
DAH JIN was approved and established in 2002, specializing in triple-insulated wire manufacturing, with flagship TLW-B passing UL E236542, conductor diameter 0.10–1.50 mm, temperature rating B class 130°C.
Note: 1900s / 1986 / 2003 represent publicly recognized industry technical milestones for triple insulated wire; Dah Jin's related data is based on official certificates and certifications.
Tainan Owned Facility
Want to learn about specifications or request a sample?
Business Manager — Shih Sheng-Wen
+886 919 113 899 · stonet123@yahoo.com.tw
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