Surgefree products and systems are specialists in surge protection devices (SPDs) that protect infrastructure in all industries, including the railway sector.
With over 20 years of experience in development and manufacturing, and extensive application knowledge, we are a leader in producing solutions and superior products to protect railway systems from various surges.
Voltage limiting devices for railway infrastructure
Voltage limiting devices (VLDs) are key products for protecting people, animals and electrical or electronic equipment in railway infrastructure.
VLD solutions ensure the safety of passengers and staff, the reliability of the rail transport system, and keep the system safe from lightning and various surges occurring in the power supply network.
Various surge protection devices for railway signaling systems
Surge protection protects people, animals and electrical or electronic equipment in railway infrastructure.
To ensure the reliability of the communication infrastructure, it must be protected against surges and, when overvoltages are detected, automatically isolate the affected area by temporarily or permanently connecting the hazardous conductive parts of the railway infrastructure to the return path.
When high short-circuit currents flow, a permanent electrical bypass of the SCG electrodes is formed via the short-circuit switch. The integrated surge arrester protects the railway system from high lightning surges of up to 100 kA.
We offer a complete portfolio of surge protection devices to protect AC or DC power inputs, radio receivers and transmitters (coaxial SPDs), Ethernet data lines (including PoE), RS-485 lines, and more.
SPDs for Ethernet, Signalling, Surveillance, Fire and Access Systems Most railway control and signalling infrastructures are interconnected by cables via digital and analog ports and must be protected against overvoltage surges.
This enables the construction of a safe and accurate railway system by selecting appropriate SPDs to protect Ethernet and data digital lines, analog signal and control circuits, various sensors, video cameras (coaxial or IP), and other electronic railway infrastructure elements.
