Power rail

Power rail

In the 1970s, Constellium pioneered the process of hybrid aluminium‑steel co-extrusion that is used to manufacture the power rails through which electricity flows to underground and suburban train systems.

A global leader in conductor rails manufacturing

Power rail system

With our joint venture partner, we design, manufacture, test and supply products for conductor rail systems

Today, electricity is transported from traction power sub-stations to rolling stock via power rails. Electrical current is then transferred through a metal contact block under the train (known as “shoes”) which presses on the surface of the contact rail. We provide power rails for top-running, lateral and under-running systems as well as rigid catenaries.

Together with our joint venture partner Railtech International, we design, manufacture, test and supply conductor rails. The joint venture responsible for global sales and marketing of our products is named Railtech-Alu-Singen.

We also offer optional services including layout planning, training in installation and on-site supervision.

Find out more about our solutions for power rail


The world’s first electric underground railway, the City and South London Railway, which opened in England in 1890, received electricity from a power rail system.

Your contacts

All countries

Sales contact

Michael Hug

Tel.: +49 7731 80 7139


Alusingen-Platz 1
D-78221 Singen

All countries

Technical contact

Gino Dallo

Tel.: +41 44 438 66 14


Max Hoegger-Strasse 6
P.O. Box 1812
CH-8048 Zürich

Last update 14 September 2016