China Wrapped Wire Manufacturers Suppliers Factory - Buy Wrapped Wire Made in China

Wrapped Wire for High-Temperature & High-Voltage Electrical Applications

Engineered for winding applications exceeding standard enamel insulation performance limits, these heavy-duty conductors incorporate layered Mica, Fiberglass, Aramid Paper, or Polyimide Film to provide high dielectric barrier strength, thermal stability, and operational reliability under continuous electrical stress.

Technical Specifications (Typical Range)

Parameter	Specification
Conductor Material	Copper / Aluminum
Conductor Shape	Round / Rectangular
Conductor Size	0.50 mm – 6.00 mm (round) / customizable (rectangular)
Insulation Type	Mica / Fiberglass / Aramid Paper / Polyimide Film
Insulation Structure	Single-layer / Multi-layer wrapping
Temperature Class	Class 155 / 180 / 200 / 220
Dielectric Strength	Customized based on insulation build
Breakdown Voltage	Available upon request
Application	Transformer / Motor / Generator / EV Systems
Standard	IEC / NEMA / Customer-specific
Packaging	Spool / Coil / Customized

Customization Options

Conductor Material

Copper or aluminum based on conductivity and cost considerations

Wire Shape

Round or rectangular conductors for different winding designs

Insulation Materials

Mica, fiberglass, aramid paper, polyimide film, or customized combinations

Insulation Build

Adjustable layer structure and thickness to meet voltage and thermal requirements

Dimensions

Custom conductor size and insulation thickness according to your specifications

Key Features

Extreme Thermal Endurance

Engineered for continuous operation in Class 180, 200, and 220+ (up to 240 degrees Celsius) environments without insulation degradation.
Superior Dielectric Strength and PD Resistance

Multi-layer wrapping provides heavy-duty defense against electrical stress, voltage surges, and partial discharge.
Mechanical and Chemical Resilience

High resistance to mechanical abrasion, vibration, oil immersion, and harsh chemical exposure for an extended service life.
Tailored Insulation Matrices

Flexible combinations of film, paper, and glass fibers to balance space factor, breakdown voltage, and cost.

Wrapped Wire Types & Selection Guide

Application	Insulation Type	Temperature Class	Key Requirement
Power Transformer	Aramid Paper / Mica	180–220	Thermal stability & oil compatibility
High-Voltage Motor	Mica / Fiberglass	200–220	Partial discharge resistance
EV Motor / Inverter	Polyimide Film / Composite	200–220	Compact design & high dielectric strength
Industrial Equipment	Fiberglass	155–180	Mechanical strength & durability

Compliance & Certifications

ISO 9001:2015 Quality Management

ISO 14001:2015 Environmental Management

ISO 45001:2018 Occupational Health and Safety

RoHS and REACH Compliant

UL Recognized Insulation Systems available

Packaging & Logistics

Spool, coil, or customized packaging for different production needs

Moisture-proof and protective packing for safe transportation

Sea, air, or express shipping based on delivery requirements

Typical lead time: 5–7 days (samples) | 2–3 weeks (mass production)

FAQ

Q: Why should I choose wrapped wire over traditional enameled wire?

A: Enameled coatings are prone to micro-cracks under severe bending, high voltage stress, or extreme temperatures. Wrapped wire uses heavy-duty physical barriers (like Mica or Nomex) which provide significantly higher mechanical cushioning, superior partial discharge resistance, and a reliable physical spacing that enamel coatings simply cannot match.

Q: Can you match a specific insulation thickness for our existing slot design?

A: Yes. We can precisely adjust the tape thickness, number of layers, and overlapping percentage (e.g., 48% to 52% overlap) to hit your exact outer dimension (OD) targets while maintaining the required breakdown voltage.

Q: What is your standard lead time, and do you offer prototyping samples?

A: For standard configurations, samples can be prepared within 5 to 7 days. Large-scale production typically takes 2 to 3 weeks depending on the conductor material sourcing. We highly recommend requesting a sample coil for winding trials.

Q: How do I get an accurate quote for my project?

A: To give you an immediate, accurate technical proposal, please click our inquiry button or email us with your conductor material and precise dimensions (Bare size vs. Insulated size target), your preferred insulation type or target operating environment (Voltage and Temperature Class), and your total estimated volume or weight required.

As one of the most professional wrapped wire manufacturers and suppliers in China, we're featured by quality products and good service. Please rest assured to buy durable wrapped wire made in China here from our factory. Contact us for more details.

Wrapped Wire