Cuponal Busbars – Copper-Clad Aluminium Bars Made in the UK
Copper clad aluminium busbars that reduce weight and cost while maintaining reliable electrical performance.
Cuponal Busbar Manufacturers and Suppliers
ILF Products supplies and manufactures Cuponal busbars for electrical, power distribution and industrial applications from our Cannock, Staffordshire facility.
Cuponal combines a copper outer layer with an aluminium core. In practice, that gives designers an alternative to solid copper busbars wherever weight, cost and installation handling matter.
What is a Cuponal Busbar?
A Cuponal busbar is a copper clad aluminium busbar, often referred to as a CCA busbar.
Because it combines the surface properties of copper with the lower density of aluminium, it reduces overall weight while still supporting strong electrical performance. In other words, you keep a copper contact surface without the full weight of a solid copper bar.
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Why Choose Cuponal Busbars?
Cuponal makes sense where the performance and material requirements of a project do not call for solid copper throughout. It suits larger power distribution systems and any application where reducing overall busbar weight makes manufacture, handling and installation more practical. Engineers keep a copper contact surface while lowering both mass and copper content.
2
Cost Control
Because the aluminium core lowers the copper content of each bar, Cuponal supports more cost-effective busbar production.
1
Lower Weight
Compared with solid copper, Cuponal can reduce busbar weight, so handling and installation become easier for fitters.
3
Reliable Performance
A copper outer surface supports effective electrical contact and current transfer at every connection point.
4
Custom Manufacture
Cuponal busbars can be punched, machined and finished to your project requirements, including tin plating where required.
Cuponal Busbar Specification Overview
| Feature | Detail |
|---|---|
| Material Type | Copper clad aluminium busbar |
| Also Known As | CCA busbar |
| Material Structure | Copper outer layer with aluminium core |
| Main Benefit | Reduced weight compared with solid copper |
| Cost Benefit | Lower copper content can support cost control |
| Electrical Contact Surface | Copper surface supports effective electrical contact |
| Manufacturing Options | Can be punched, machined and finished to specification |
| Plating Options | Tin plating available where required |
| Suitable Applications | Switchgear, control panels, distribution boards and power systems |
| Best Suited For | Projects needing a copper contact surface with reduced weight |
Where Cuponal Busbars Make Sense

Switchgear and Panels
Used for reliable electrical connections in switch cabinets, switchboards and control panels.

Distribution Boards
Suitable where weight saving, conductivity and easier installation are important.

Power and Energy Systems
Used in electrical equipment, renewable energy systems and power distribution projects.

Transport and Industrial Applications
A practical option for rail, aerospace, crane systems and other weight-sensitive applications.
Cuponal Busbar FAQs
A Cuponal busbar is a copper clad aluminium busbar. It combines a copper surface with an aluminium core.
Cuponal can reduce weight and copper content while still providing a copper contact surface for electrical applications.
Yes. We can work from drawings, samples, dimensions and project specifications.
Yes. Cuponal busbars can be machined, punched and finished to suit specific applications.
Yes. Tin plating can be supplied where required for the application.
They are commonly used in switchgear, switchboards, distribution boards, electrical equipment, renewable energy, rail and aerospace applications.