High-Quality Flexible Copper Shunts from China Factory - Leading Suppliers for Custom Solutions
Core Specifications
Material:
T2 Red Copper (Purity ≥99.9%)
Structure:
Multi-layer ultra-thin copper foil lamination (0.05–0.3mm)
Process:
Molecular diffusion welding/pressure welding (solder-free)
Surface:
Tin-plated, Nickel-plated, Silver-plated (optional)
Insulation:
EVA/PE heat-shrink, silicone rubber, composite (optional)
Shape:
Straight (F), C-type (180°), J-type, L-type, Custom
Electrical:
100–5000A | Resistivity: ≤0.0172Ω·mm²/m
Mechanical:
≥10,000 bends | Temp: -40℃ ~ +150℃
Selection Points
1
Rated Current: Determine the long-term/peak current carrying capacity.
2
Installation Space: Confirm the width, thickness, total length and bending requirements.
3
Connection Method: Clarify the hole spacing, hole diameter and terminal size.
4
Environmental Conditions: Consider temperature, humidity, corrosion and vibration level.
5
Insulation Requirements: Confirm whether insulation sleeves are needed and the required material.
6
Surface Treatment: Tin-plated (general purpose), Nickel-plated (corrosion-resistant), Silver-plated (low resistance).
Typical Applications
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Power Electrical Field: Switchgear, transformers, bus ducts, high and low voltage electrical appliances, generators, substations.
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New Energy Field: Energy storage battery packs, photovoltaic inverters, wind power equipment, high-voltage systems of new energy vehicles.
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Industrial Equipment Field: Welding machines, electric furnaces, electrolytic equipment, electroplating power supplies, frequency converters.
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Rail Transit Field: Conductive connections for locomotives, subways and EMUs.
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Communication/Data Center Field: UPS uninterruptible power supplies, bus connections for large server cabinets.
Package & Shipment
Frequently Asked Questions
Q
What is a flexible copper shunt and how does it differ from a rigid busbar?
A
A flexible copper shunt is made from multiple layers of ultra-thin copper foil bonded together, allowing it to flex and absorb vibration or thermal expansion. Unlike a rigid busbar, it can be bent into various shapes (F, C, L, J-type) and is ideal for applications where movement or misalignment compensation is required.
Q
What current ratings are available for flexible copper shunts?
A
Our flexible copper shunts are available in a wide current range from 100A up to 5000A. The exact current capacity depends on the cross-sectional area, number of copper foil layers, and the length of the shunt. Custom specifications can be designed to match your specific current requirements.
Q
What surface treatment options are available, and which should I choose?
A
Three surface treatment options are available: Tin-plated is suitable for general-purpose applications and offers good solderability; Nickel-plated provides enhanced corrosion resistance for harsh environments; Silver-plated delivers the lowest contact resistance and is recommended for high-performance or high-frequency applications.
Q
Can flexible copper shunts be customized to fit specific dimensions or shapes?
A
Yes, fully custom manufacturing is supported. You can specify the width, thickness, total length, bending shape, hole spacing, hole diameter, terminal size, and insulation type. Please provide your technical drawings or key parameters, and we will produce shunts tailored to your exact requirements.
Q
What is the operating temperature range and mechanical durability of these shunts?
A
Flexible copper shunts are rated for operation between -40℃ and +150℃, making them suitable for both extreme cold and high-heat industrial environments. They are engineered to withstand a minimum of 10,000 bending cycles, ensuring long-term reliability in applications with continuous vibration or movement.
Q
Are insulation sleeves available, and what materials are offered?
A
Yes, insulation sleeves are available as an optional add-on. The available insulation materials include EVA/PE heat-shrink tubing, silicone rubber, and composite insulation materials. The choice depends on your voltage level, temperature requirements, and environmental conditions such as moisture or chemical exposure.