Insulated Flexible Copper Busbar | MV Switchgear & Transformer Connector

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Features:

This high-performance insulated flexible copper busbar (flexible copper connector) is a critical conductive component designed for medium-voltage (MV) switchgear, power transformers, renewable energy systems, and industrial power distribution. Engineered for reliable large-current transmission and vibration absorption, it ensures stable, safe electrical connections in power systems worldwide.

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Description:

Key Features & Benefits

High-Purity Copper for Superior Conductivity

Manufactured from T2 oxygen-free copper, the busbar delivers ≥98% IACS conductivity, minimizing power loss and heat generation during high-current operation (up to 3150A). The precision-machined copper terminals with standard mounting holes ensure a tight, low-resistance connection with switchgear, transformers, and inverters.

Flexible Design for Vibration & Thermal Compensation

The laminated copper foil/stranded copper core provides exceptional flexibility, effectively absorbing mechanical vibration, thermal expansion/contraction, and installation misalignment. This prevents connection loosening, equipment damage, and potential arc faults, significantly enhancing system reliability.

Premium Heat Shrink Insulation Protection

Coated with high-grade XLPE/EPDM heat shrink tubing, the busbar offers excellent electrical insulation, flame resistance (UL94 V-0), and environmental protection. It withstands extreme temperatures from -40°C to +125°C, resists UV radiation, moisture, and chemical corrosion, making it ideal for harsh indoor/outdoor substation environments.

OEM Compatibility & Customization

Fully compatible with mainstream switchgear and transformer systems (Schneider, ABB, Siemens), this flexible copper connector is a direct OEM replacement, eliminating on-site modifications. We offer fully customized solutions for length, cross-section, terminal size, and insulation specifications to meet your project requirements.

Cost-Effective Bulk Supply

Factory-direct production with strict quality control (compliant with IEC 61439, GB/T 14048 standards) delivers significant cost savings compared to OEM parts. We support bulk orders with short lead times, ensuring stable supply for switchgear manufacturers, power utilities, and electrical contractors.

Key Technical Parameters

Technical Parameter Specification
Material T2 Oxygen-Free Copper (≥98% IACS)
Insulation Material XLPE/EPDM Heat Shrink Tube (UL94 V-0)
Rated Current 630A, 1250A, 2500A, 3150A (customizable)
Rated Voltage 0.6/1kV, 3.6/7.2kV, 12kV (customizable)
Operating Temperature -40°C ~ +125°C
Dielectric Strength ≥10kV/mm
Insulation Resistance ≥1000MΩ
Design Standard IEC 61439, GB/T 14048
Customization Length, cross-section, terminal size available

Ideal Applications

  • Medium-voltage switchgear, ring main units (RMUs), and SF6 GIS
  • Power transformers and distribution transformers
  • Renewable energy systems (solar PV inverters, wind power converters, energy storage)
  • Industrial power distribution, motor control centers (MCCs), and busbars
  • Switchgear retrofits, maintenance, and new equipment manufacturing

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