Cuponal™

the Engineered alternative to Copper Busbar

• A selection of Cuponal profiles
• Cuponal used as a centre conductor in a coaxial cable 
   

Cuponal is a bi-metal conductor developed to provide an economic alternative to solid copper. CUPONAL is produced by the hydrostatic extrusion process, and consists of a solid core of electrical grade aluminium with a pressure bonded outer layer of high conductivity copper.
CUPONAL therefore offers economic and weight saving advantages over solid copper, while retaining the surface properties of a copper busbar. It is often possible to substitute a copper bar with a Cuponal bar of equal dimensions. This yields the maximum cost saving.

All rectangular and round sections are produced using a nominal copper cladding of 15% by volume (37% by weight) with the exception of certain sizes of high aspect ratio which are produced with nominally 20% copper by volume (45% by weight).

Special profiles, for example 'L' or 'T' shapes can be made to order, and are produced with a 20% copper cladding by volume. Enquiries for profiles should be directed to the factory at the earliest opportunity during switchgear design, to investigate the feasibility of producing the desired profile in CUPONAL.


Cuponal is a registered trade mark of Hydrostatic Extrusions Limited