WDZ-RY 450/750V
Copper Core Low-Smoke, Halogen-Free, Cross-Linked Polyolefin Insulated Flexible Wire
Product Applications
Applicable to applications with AC rated voltages of 450/750V and below, such as subways, high-rise buildings, shopping malls, theaters, power stations, chemical plants,city squares, and other public utilities, where flame retardancy is a high requirement. The low corrosiveness of combustion gases also prevents damage to equipment. The low-smoke, halogen-free properties significantly enhance the cable material's resistance to aging, UV rays, and other radiation,
thus extending the cable's service life.
Product Structure
Reference Standards: GB/T5023-2008, GB/T19666-2019
Conductor: Multi-stranded fine bare copper wire, conforming to GB/T3956-2008, Category V conductor
Insulation Material: Low-smoke, halogen-free polyolefin
Color: Customizable upon request
Technical Parameters
Rated Voltage: 450/750V
Test Voltage: 2500V/5min
Rated Temperature: -40°C to +90°C
Minimum Bend Radius:
Fixed Installation: 7 x D (cable outer diameter)
Flame Retardant: Conforms to the GB/T18380.12 single insulated wire vertical combustion test
Low Smoke: Conforms to GB/T17651.2
Halogen-Free: Conforms to GB/T17650.2
Environmental Protection: RoHS and REACH compliant
Product Features
Low smoke and flame retardancy during combustion
No toxic gases released in the event of a fire
| Number of cores × cross-sectional area | Insulation thickness (mm) | Cable outer diameter range (mm) | Minimum insulation resistance at 70℃(MO*km) | Maximum conductor resistance at 20°C (Q/km) |
| 1x1.5 | 0.7 | 2.8-3.4 | 0.01 | 13.3 |
| 1×2.5 | 0.8 | 3.4-4.1 | 0.009 | 7.98 |
| 1x4.0 | 0.8 | 3.9-4.8 | 0.007 | 4.05 |
| 1x6.0 | 1.8 | 4.4-5.3 | 0.006 | 3.3 |
| 1x10 | 1.0 | 5.7-6.8 | 0.0056 | 1.91 |
| 1x16 | 1.0 | 6.7-8.1 | 0.0046 | 1.21 |
| 1×25 | 1.2 | 8.4-10.2 | 0.0044 | 0.78 |
| 1x35 | 1.2 | 9.7-11.7 | 0.0038 | 0.554 |
| 1x50 | 1.4 | 11.5-13.9 | 0.0037 | 0.386 |
| 1x70 | 1.4 | 13.2-16.0 | 0.0032 | 0.272 |
| 1x95 | 1.6 | 15.1-18.2 | 0.0032 | 0.206 |
| 1x120 | 1.6 | 16.7-20.2 | 0.0029 | 0.161 |
| 1x150 | 1.8 | 18.6-22.5 | 0.0029 | 0.129 |
In modern industrial, commercial, and infrastructure projects, safety, flexibility, and efficiency are critical in wiring solutions. The Copper Core Low Smoke Zero Halogen (LSZH) Cross-linked Polyolefin Insulated Flexible Wire is engineered to meet these demands. Combining superior fire safety, enhanced flexibility, and long-lasting performance, it is ideal for applications in industrial automation, transportation, public infrastructure, and building wiring systems.
This product is designed for long-term reliability while reducing environmental and health hazards in case of fire, making it a preferred choice for safety-conscious organizations worldwide.
The design of the Copper Core LSZH Flexible Wire ensures mechanical robustness, fire safety, and signal integrity. Its structure typically includes the following components:
| Component | Material / Description | Function / Benefit |
|---|---|---|
| Conductor Core | High-purity flexible copper | Provides excellent conductivity and flexibility |
| Insulation Layer | Cross-linked polyolefin (XLPO) | Heat resistance, durability, and mechanical protection |
| LSZH Jacket | Halogen-free, low smoke material | Reduces toxic gas emission during fire |
| Optional Shielding | Aluminum or copper braid | Protects against electromagnetic interference (EMI) |
| Overall Flexibility | Multi-strand design | Allows easy installation in tight or curved spaces |
Key Features:
Flexible copper core for high conductivity and mechanical strength
Cross-linked polyolefin insulation resists heat, chemicals, and abrasion
Zero halogen formulation reduces toxic fumes during fire incidents
High flexibility for easier routing and installation
These wires are engineered to meet global standards for safety, performance, and durability.
| Parameter | Specification |
|---|---|
| Conductor Material | Flexible Copper (Class 5 or Class 6) |
| Insulation Material | Cross-linked Polyolefin (XLPO), LSZH |
| Rated Voltage | 300/500V, 450/750V, 600/1000V |
| Temperature Range | -40°C to +125°C |
| Flame Retardant | Yes |
| Halogen Content | Zero (LSZH) |
| Shielding Options | Optional aluminum foil or braided shield |
| Standards Compliance | IEC 60332, EN 50267, UL 1581, RoHS |
| Available Sizes | 0.5mm² – 50mm² |
Performance Highlights:
Excellent thermal stability and chemical resistance
Enhanced mechanical durability under flexing or bending
Reduced smoke emission and corrosion potential in fire
To ensure optimal performance and safety, our technical team provides:
Installation Guidelines: Detailed instructions for bending radius, conduit use, and shielding grounding
Custom Solutions: Tailored conductor sizes, insulation thickness, and shielding options for specific applications
Testing & Certification: Assistance with compliance testing for UL, CE, RoHS, and other global standards
Maintenance Tips: Recommendations for long-term durability, inspection, and replacement cycles
Copper core LSZH cross-linked polyolefin insulated flexible wires are versatile and widely used across industries. Key application areas include:
Control panels and machinery wiring
Robotics and conveyor systems
Signal and power distribution in factories
Subway and rail networks where low smoke, halogen-free wiring is critical
Buses, ships, and aircraft cabling systems
Ensures passenger safety in case of fire
Hospitals, airports, and schools
Data centers and server rooms
Emergency power and fire alarm systems
High-rise buildings and offices
Elevators and HVAC systems
Flexible wire routing for confined spaces
Application Case Table:
| Industry / Project | Cable Use Case | Benefits Provided |
|---|---|---|
| Industrial Automation | Control panel wiring | Flexibility, durability, EMI protection |
| Subway / Rail | Power and signal wiring | Low smoke emission, safety compliance |
| Data Centers / Offices | Networking & emergency systems wiring | Fire safety, thermal resistance |
| Hospitals / Airports | Alarm & lighting circuits | Reduced toxic gas release, high reliability |
Global clients consistently praise the cable for safety, reliability, and ease of installation.
“Using these LSZH wires in our subway project gave us confidence in passenger safety. Installation was smooth due to excellent flexibility.” – MetroRail Engineering, Germany
“The cross-linked polyolefin insulation ensures our control panels operate reliably even under high heat conditions. Maintenance costs have dropped significantly.” – Industrial Automation Corp, USA
“These wires meet our strict RoHS and fire safety requirements for public buildings. The zero-halogen feature is a huge plus.” – Construction Group, UAE
To maximize the safety and lifespan of LSZH flexible wires:
Avoid Sharp Bends: Maintain the minimum bending radius.
Temperature Compliance: Operate within specified temperature limits.
Shield Grounding: Ensure proper grounding of shielded wires.
Fire-Safety Awareness: Use certified LSZH wires in fire-prone areas.
Periodic Inspection: Check insulation integrity and conductor continuity.
| Feature | PVC / Standard Cable | Copper LSZH XLPO Flexible Wire |
|---|---|---|
| Fire Safety | Medium | High |
| Smoke Emission | High | Low |
| Halogen Content | Present | Zero |
| Flexibility | Medium | High |
| EMI Protection | None | Optional / Built-in Shielding |
| Lifespan | 10–15 years | 20+ years |
| Maintenance Cost | Medium | Low |
The Copper Core Low Smoke Zero Halogen Cross-linked Polyolefin Insulated Flexible Wire is an optimal solution for modern wiring projects, combining:
Exceptional fire safety with minimal toxic smoke
High flexibility for easy installation in complex layouts
Durable copper conductors and XLPO insulation for long-term reliability
Compliance with international standards for industrial, commercial, and public projects
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