Circular Connectors for Railway Application

Keeping safety and reliability on track

Thanks to our innovations in fiber optic, ultra-resistant and miniature connectors, we keep the trains running punctually, efficiently and safely.

Railways rely on rugged connectivity solutions that perform consistently and withstand extremes of temperature, humidity and other factors. They are often built across challenging terrain and need to withstand environmental extremes. Rolling stock and related infrastructure have to meet the highest safety and performance standards.

By making railway equipment faster, tougher, smaller, lighter and smarter, we aim to make railway operators’ lives safer and easier, and improve passengers’ safety and comfort. For 60 years, we’ve been partnering with the world’s transport suppliers and major players to co-create a vast range of versatile interconnection solutions with a proven track record in monitoring power supply, catenary position and wheel-track interaction, controlling wheel and track shape, maintaining telecom networks, and providing onboard infotainment.


When performance and reliability are key, the pre-cabled Fischer FiberOptic Series is the ideal solution for indoor, outdoor and extreme applications, ensuring high-quality optics and efficient large data transfer. This makes it ideal for monitoring and testing the railway network, and quickly identifying where maintenance work is needed. It also helps meet passengers’ growing demands for high-quality infotainment and stable Internet connections.

Ultra-resistance is especially important for applications outside the train. The durable Fischer UltiMate™ Series connectors are rugged, compact and lightweight, offering exceptional shock, vibration and corrosion resistance. They operate at temperatures from -55°C to +135°C.

Miniaturization packs more functionality into trains. The high-density Fischer MiniMax™ Series is a unique miniature signal and power solution that provides 20 signal and 4 power connections in one connector, replacing multiple others. As well as being rugged, these connectors are particularly easy to operate, clean and maintain.

These new specialized product lines can easily be combined with the Fischer Core Series line and cable assembly solutions, which fulfill any need in terms of size, configuration and application.

Railway product lines
Robust optical performance for extreme environments
Original high performance push-pull connectors
Rugged, compact and lightweight
High density, signal & power in one miniature connector
When weight matters