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High Purity Copper Triple Insulated Wire 0.3x7 Strands Enameled Wire 1000 Vrms Rated Voltage

Basic Information
Place of Origin: China
Brand Name: Rvyuan
Certification: UL/SGS
Model Number: 0.3*7
Minimum Order Quantity: Different types with differet MOQ
Price: Negotiation
Packaging Details: Spool with carton
Delivery Time: 2-15 workding days
Payment Terms: Negotiation, T/T, L/C
Supply Ability: Satisfy your demand
Detail Information
Product Name: 0.3x7 Triple Insulated Litz Wire Certification: IEC/NEMA/JIS/RoHS/ISO
Color: Red/Pink/Blue/Yellow Size: 0.3*7mm
Packing: Plastic Roll Then In Carton Rated Temperature: 130
Rated Voltage: 1000 Vrms Solderability: Directly
Conductor: High Purity Copper
High Light:

insulated copper wire


tiw wire

Product Description


TIW, a unique product for small transformers. Three layer extruded coatings of high performance polymer resins gives excellent dielectric properties to this type of winding wires. Unlike enamelled wires, three layers of insulation are extruded over the copper conductor by an automated manufacturing process ensure perfect central position of conductor. The conventional enamelled wire winding coils requires insulation between the primary and secondary coils by means of barrier tape or inter layer tape, to isolate primary and secondary windings. Since three layers coating is having very high dielectric strength, it has very less creepage factor. This positive feature of TIW serves to downsize switching transformers, and promises high production efficiency and cost reduction. Depending on the design, the transformer size can be reduced up to 40% and weight up to 60% as compared to transformers made up of enamelled wires.


Inner packing: winding wire with plastic spools (PT2-PT200) according to different diameters
Outer packing: Wooden pallet and wooden case or according to customers' special requirement.



  • The integration of a special thin-film conductor into the transformer’s conductor reduces eddy-current losses generated inside the conductor, thereby resulting in low overall losses.

  • Space saving is achieved due to the high performance of Litz-type wires. Winding wires is easier due to excellent flexibility.

  • While retaining excellent ease of peeling, which is a major feature of the TIW series, peeling from the conductor is facilitated by the improved specifications of the tape material.

  • Direct soldering can be done without stripping off the insulation.


These products demonstrate considerable effects in terms of loss reduction and mitigating temperature rises when used in switching power transformers, which are widely used in industrial and consumer-use equipment.




  Characteristics Test Standard Conclusion
1 Package Whether Package condition is good(including carton,spool, PE film, Air bubble film).Whether carton’s seal is complete OK
2 Bare Wire Diameter 0.30±0.02MM 0.294-0.297
3 Overall Diameter 1.13-1.23MM 1.150-1.157
4 Conductor Resistance MAX: 41.2Ω/KM 36.60Ω/KM
5 Breakdown voltage of straight wire The length of wire 305mm,wind on the copper bar, test condition 1mA/60s/6.0KV OK
6 Breakdown voltage of bending wire The length of wire 305mm , Test condition:1mA/60S/4.5KV OK
7 Breakdown voltage of twist wire The length of wire 125mm , Test condition: 50HZ/1mA/60S/AC10KV OK
9 Solder ability 430± 5℃ 1-2.5 Secs OK
Conclusion Qualified

Contact Details
Mr. James Shan

Phone Number : +8613920472299

WhatsApp : +8615802295822