WDZN-KYJY-450/750V-4×2.5 Low Smoke Zero Halogen Cable

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WDZN-KYJY-450/750V-4×2.5 Low Smoke Zero Halogen Cable
Details
The WDZN-KYJY-450/750V-4×2.5 cable is a heavy-duty, fire-resistant control cable designed to maintain circuit integrity and critical signal transmission during structure fires.
Category
Low Smoke Halogen-free Cable
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Description

The WDZN-KYJY-450/750V-4×2.5 cable is a heavy-duty, fire-resistant control cable designed to maintain circuit integrity and critical signal transmission during structure fires.

 

Product Specifications

 

Item

Specification

Model

WDZN-KYJY-450/750V-4×2.5

Type

LSZH Fire Resistant Control Cable

Voltage Rating

450/750V

Conductor

Annealed Copper

Structure

4 Cores × 2.5mm²

Insulation

XLPE

Fire Layer

Mica Tape

Sheath

LSZH Polyolefin

Operating Temperature

-20°C to +90°C

Short Circuit Temperature

250°C (≤5s)

Bending Radius

≥6× Cable OD

 

Safety & Performance

 

Item

Performance

Fire Resistance

Maintains circuit integrity up to 90+ min at 750–800°C

Flame Retardancy

Prevents vertical flame spread (IEC 60332)

Smoke Emission

Low smoke, ≥60% light transmittance

Halogen Emission

Zero halogen, HCl <0.5%

Corrosion Protection

Reduces damage to control equipment

Moisture Resistance

Water absorption <0.5 mg/cm²

Installation

Suitable for conduits, trays, ducts, tunnels

Compatibility

Fits M20/M25 glands and DIN terminals

 

Key Performance

 

Fire Circuit Integrity: Synthetic mica barrier maintains 750V power continuity for 90+ minutes at 750°C (IEC 60331-21).

Thermal Rating: XLPE insulation operates continuously at 90°C conductor temperature, preventing thermal degradation.

Corrosion Prevention: Zero-halogen formulation (HCl < 0.5% per IEC 60754-1) eliminates acidic gas emissions.

Space Savings: Compact 4×2.5 mm² outer profile increases cable tray packing density by up to 15% without violating thermal clearance limits.

 

Quality Control

 

Triple-Extrusion Lines: Continuous Vulcanization (CV) processing guarantees uniform wall thickness and zero internal voids in XLPE insulation.

Conductor Purity: Oxygen-free copper drawing ensures electrical conductivity ≥100% IACS, minimizing voltage drop across long cable runs.

100% In-Line Inspection: Every drum undergoes continuous spark testing, conductor DC resistance verification, and 3.5 kV/5 min dielectric withstand testing.

 

Commercial Terms

 

MOQ: Base MOQ is 3,000 meters for 4×2.5 mm²; lower quantities negotiable for qualified engineering approvals.

Payment Terms: 30% T/T deposit with balance against Bill of Lading, or 100% Irrevocable L/C at sight.

Transparent Pricing: Contract unit prices are indexed directly to real-time London Metal Exchange (LME) copper spot rates.

Custom Identification: Sequential meter marking, project-specific sheath legends, and core color coding applied during extrusion.

 

Packaging

 

Export Packaging: Supplied on ISPM-15 heat-treated wooden reels or heavy-duty steel drums to prevent transport damage during ocean freight.

Moisture Protection: Heavy-wall heat-shrink end caps seal conductor ends against humidity ingress during port storage and outdoor staging.

Custom Reel Lengths: Standard 500 m / 1,000 m drums or project-specific continuous lengths reduce site splicing joints.

Container Payload Optimization: Drum dimensions are engineered to optimize 20ft and 40ft HQ container volume.

 

Compliance & Certifications

 

Factory Certifications: Manufacturing plant certified under ISO 9001 (Quality), ISO 14001 (Environmental), and ISO 45001 (Safety).

Fire Performance Standards: Certified to IEC 60331-21 (Fire Resistance), IEC 60332-3 (Flame Retardancy), and IEC 61034 (Smoke Density).

Third-Party Inspection: Open-factory policy for Factory Acceptance Testing (FAT) witnessed by SGS, TÜV, Intertek, or Bureau Veritas.

Quality Documentation: Every shipment includes EN 10204 3.1 Mill Test Certificates (MTC) and raw material batch traceability logs.

 

FAQ

 

Q: What information is needed to select the correct fire resistant cable?

A: Selection depends on voltage rating, conductor size, installation environment, fire protection requirements, and applicable regional standards.

Q: Is there a minimum threshold below 3,000 meters?

A: Orders as low as 500 meters are accepted for confirmed engineering-approved projects (such as tender-specified retrofit work) with supporting project documentation.

Q: Does the M20/M25 gland compatibility require additional sealing accessories for outdoor or damp installations?

A: Standard M20/M25 compression glands provide adequate sealing for indoor and conduit installations; outdoor or damp environment installations should specify the optional IP68-rated gland kit.

Q: What happens if a drum fails the IEC 60331-21 fire resistance retest after arrival at the destination port?

A: Buyers must submit a claim with test evidence within 15 days of port arrival, after which a credit note or free replacement is issued within 10 business days.

Q: What is the actual voltage drop over a 100-meter run at rated current?

A: At full rated current for the 2.5 mm² conductor over a 100-meter run, voltage drop is approximately 3.2-3.5%.

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