Crimp contacts for the railway

Crimp contacts for the rail sector are key components for safe, durable and high-performance electrical connections in rail vehicles, railway infrastructure and demanding industrial applications. Whether in control cables, power distribution systems, signalling technology or connectors for traction and on-board power systems: in railway technology, contacts must withstand high mechanical stresses, vibrations, temperature fluctuations and frequent mating and disconnection cycles over the long term.

High-quality crimp contacts made from copper alloys with gold or silver plating offer optimum connection properties for this purpose. They ensure low contact resistance, stable current transmission and reliable electrical contact — even under harsh operating conditions. Precision-manufactured crimp contacts play a particularly important role in the railway sector, where operational safety, low maintenance requirements and a long service life are crucial.

Technical advantages for railway applications

For use in the railway sector, electrical contacts must not only be conductive but also particularly robust. The crimp contacts described are designed to ensure high resistance to vibrations, continuous stress and repeated plugging and unplugging.

Key features at a glance

• Materials made from high-quality copper alloys for reliable conductivity
• Gold or silver plating for optimised contact surfaces
• Low contact resistance for efficient current transmission
• High vibration resistance for use in rail vehicles
• Suitable for numerous mating cycles during maintenance and replacement
• Various contact sizes for different current ratings
• Customised versions with alternative connection techniques or special surface finishes are available

Current-carrying capacity and temperature behaviour

An important factor when selecting crimp contacts for railway applications is the permissible current-carrying capacity. The values stated relate to defined ambient temperatures. As the temperature rises, conductivity decreases, which may also reduce the permissible operating current.

The following overview shows examples of typical contact sizes and electrical characteristics:

These figures illustrate that, depending on their size, crimp contacts can be suitable for both signal and control connections as well as for higher-power applications in the railway sector.

Why crimp contacts are particularly important in the rail sector

In rail vehicles, electrical connections are constantly subjected to vibrations, shocks and thermal stresses. An unreliable connection can lead to voltage drops, increased contact resistance or, in the worst case, malfunctions. For this reason, the rail industry favours connection systems that enable a mechanically stable and electrically reliable crimp connection.

By combining the appropriate contact size, suitable coating and professional workmanship, crimp contacts can be optimally tailored to the specific application. For specialised requirements, contacts with special surfaces, alternative connection types or customised designs are also available.

Crimp contacts for the rail sector thus offer a robust solution for modern rail vehicles, where safety, availability and a long-term stable electrical connection are of paramount importance.