Polyesterimide taped litz wire 3UEW-F 0.07X800 single double serving litz wire for Vehicle

Short Description:

Single wire diameter: 0.07mm, Number of strands:800

Thermal rating: class 155, Max.OD: 2.57-2.92mm Insulation material: PI tape

MOQ:20KG,

1KG=34.9M

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Product Detail

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Introduction

The Polyesterimide Taped Litz Wire is a high-end winding solution specifically designed for NEVs next-generation new energy vehicles. Made of 800 strands 0.07 mm enameled copper wires bunched in a high precision and tightly wrapped with a solid polyesterimide tape, this configuration guarantees perfect structural stability— which is more important when dealing with high-strand counts, as tape outperforms films by offering better mechanical protection and resistance to abrasion.

Standard

·IEC 60317-23

·NEMA MW 77-C

·customized according to customer requirements.

FAQ

1. Can I get samples for testing before placing a batch order?
Yes. Samples are either free or charged, but the shipping cost is borne by the customer.

2. What is your delivery lead time?
Sample orders: 3–5 working days; bulk orders: completed within 15 working days after order confirmation.

3. Can I customize products with my own logo, size, and shape?
Yes, but the MOQ (Minimum Order Quantity) is subject to negotiation.

4. What are your payment methods?
T/T, D/P, L/C, PayPal.

5. Which courier services do you use?
FedEx, DHL, TNT, UPS, with discounts up to 80%.

6. What testing equipment do you have?
Laser diameter gauge, high-voltage spark tester, elongation tester, spring-back tester, withstand voltage tester, solderability tester, R esistance Tester etc.

7. Which customers or markets are your products suitable for?
Our products are ideal for applications requiring high efficiency and space-saving solutions in high-frequency AC environments, including power electronics & power supplies, EV on-board chargers, wireless charging systems, green energy, communications & IT, medical equipment, industrial robots, servo motors, etc.

Why Taped Litz Wire for NEVs?

High frequency AC currents, in electric vehicle powertrains including traction motors, onboard chargers and DC-DC converters, cause significant skin and proximity effects, resulting in copper losses and heat generation. Our taped litz wire reduces these losses by balancing the current over all the insulated strands, which significantly enhances efficiency and thermal management. The kapton tape provides a solid outer insulation layer, shielding against voltage surges, humidity, and mechanical stress during insertion of the coil – thereby the life of the component is extended in the rough automotive environment.

With optimized fill factor and uniform impedance, this wire allows for lighter, smaller, and cooler motor construction which results in higher vehicle range and reliability.Directly contributing to vehicle driving range and vehicle reliability. Custom tape widths and stranding parameters available to suit your specific NEV application.

Specification

Item	Tech requirement	Measured value					Result
Single wire Diameter mm	0.079-0.082	0.079	0.080	0.079	0.079	0.080	Qualified
Conductor	0.070±0.001	0.069	0.070	0.070	0.069	0.069	Qualified
O. D. mm	2.57-2.92	2.86	2.70	2.63	2.84	2.85	Qualified
Resistance Ω/m	0.00535-0.00636	0.005567	0.005703	0.005771	/	/	Qualified
Dielectric strength v	≥4000	9360					Qualified
Configuration	0.07X32X5X5	0.07X32X5X5					Qualified
Tape Overlap %	≥50	50					Qualified
Bunching direction	S/S/S	S/S/S					Qualified

Application

5G base station power supply

EV Charging Stations

Industrial Motor

Maglev Trains

Medical Electronics

Wind Turbines

Certificates

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About us

Founded in 2002, Ruiyuan has been in the manufacture of enamelled copper wire for 20 years.We combine the best manufacturing techniques and enamel materials to create a high-quality, best-in-class enameled wire. The enameled copper wire lies at the heart of technology we use every day – appliances, generators, transformers, turbines, coils and much more. Nowadays, Ruiyuan has the global footprint to support our partners in marketplace.

Our Team
Ruiyuan attracts many outstanding technical and management talents, and our founders have built the best team in the industry with our long-term vision. We respects the values of each employee and provides them with a platform to make Ruiyuan a great place to grow a career.