Customizable Copper Foil Flexible Busbar for Switchgear - China Suppliers and Factory Quality Solutions
Copper Foil Flexible Busbar Features
Strong Flexibility & High Adaptability
Composed of multiple layers of thin copper foil, achieving an Angle offset of ±15°. Absorbs stress from vibration and thermal expansion, ideal for EVs and photovoltaic inverters.
Lightweight and Compact
With a density of 8.9g/cm³, it combines high current capacity with a lightweight design. Compact size saves space in battery modules and switchgear.
Low Inductance Anti-interference
Special stacked structure reduces inductance to <10nH (or <5nH for high-frequency), optimizing electromagnetic compatibility and reducing switching loss.
Technical Data
| Material | T2 copper / C11000 / Cu-ETP 99.9% purity |
| Size | Customized |
| Finish | Bare, Tin plating, Nickel plating, Silver Plating |
| Single Foil Thickness | 0.03mm to 0.50mm (0.10mm standard) |
| Working Temperature | -50ºC to 115ºC |
| Ampacity | 20A to 1500A |
| Inductance Value | Usually < 10nH (High-frequency as low as < 5nH) |
Applications
✦
New Energy Vehicles: Battery modules, battery packs, and motor controllers.
✦
Energy Storage Systems: Photovoltaic combiner boxes and grid-level storage.
✦
Industrial Power: Switchgear, transformers, welding machines, and inverters.
✦
Rail Transit: Traction converters for high-speed trains and subways.
✦
Aerospace & Marine: Conductive components for harsh extreme environments.
Package & Shipping
Frequently Asked Questions
Q1: How much flexibility does the copper foil busbar provide?
A: It is highly flexible and can achieve an angle offset of ±15°, allowing it to absorb mechanical vibrations and thermal expansion.
Q2: What is the purity of the copper used?
A: We use T2 copper (C11000/Cu-ETP) with a purity level of 99.9%.
Q3: Can the surface finish be customized?
A: Yes, we offer several finishes including bare copper, tin plating, nickel plating, and silver plating.
Q4: What is the maximum current capacity?
A: The ampacity ranges from 20A up to 1500A depending on the customized dimensions.
Q5: Is it suitable for high-frequency electronic applications?
A: Yes, its low inductance design (as low as < 5nH) makes it ideal for frequency converters and vacuum circuit breakers.
Q6: What is the operating temperature range?
A: The busbars are designed to operate reliably between -50ºC and 115ºC.












