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Circuit Breaker Wires: The Critical Current Pathway for Trip Protection Systems


As China's leading circuit breaker wire manufacturer, HAIPART designs wires that serve as the "current blood vessels" in trip protection systems - connecting external circuits to internal components. From power input terminals to signal transmission between contacts and coils, our wires ensure stable current conduction that directly impacts breaker response time and safety performance.

Specializing in "Material Excellence + Process Optimization", we provide customized wire solutions for various breaker types and application scenarios.


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Why Choose HAIPART Circuit Breaker Wires?


Material Innovation: The Art of Conductivity & Durability

Core Conductor

  • High-purity Oxygen-Free Copper (OFC) stranded wire

  • Purity ≥99.99% | Conductivity ≥100% IACS

  • Reduces resistance loss by 15% vs standard copper

  • Silver-plated surface (8-12μm) maintains low contact resistance

  • Passes 1000hr salt spray test (ASTM B117)

Insulation Layer

  • Dual-layer co-extrusion technology

  • Inner layer: Cross-linked Polyethylene (XLPE) | Temp rating: 105°C

  • Outer layer: Flame-Retardant PVC (FR-PVC) | UL 94 V-0 certified

  • Special formulation maintains flexibility at -40°C

  • Eliminates winter installation cracking risks


Structural Design: Optimizing Safety & Efficiency

Conductor Architecture

  • Multi-strand fine wire design (≤0.2mm strand diameter)

  • 5x wire diameter bending radius for compact installations

  • Pre-crimped terminals with dual-redundancy contact

  • Ensures vibration-resistant connection reliability

Protection System

  • Kevlar-reinforced jacket (200N tensile strength)

  • Prevents short circuits from mechanical damage

  • IEC 60446 compliant color-coding system

  • Reduces wiring errors through visual identification


Key Application Areas


✅ Data Center Power Systems

Critical infrastructure protection with fail-safe wiring.


✅EV Charging Stations

High-current solutions for fast-charging applications.


✅Smart Grid Systems

Reliable transmission for grid modernization projects.


✅Low-Voltage Equipment

Precision wiring for protection devices and controls.


Our Circuit Breaker Wire Products


RCBO Circuit Breaker Wire Components

Specialized OFC wires with silver plating and XLPE/FR-PVC dual insulation for Residual Current Breakers with Overcurrent Protection systems.


Get Your Custom Wire Solution


Contact HAIPART

Tel: +86-13819777367

Email: Sales@haipart.com


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Contact Us

Tel: +86-13819777367
Email: Sales@haipart.com
Add: No.258 Wei 20th Road, Yueqing Economic Development,Zone, Yueqing City, Wenzhou City, Zhejiang Province

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