Innovations in Railway Mobility, InnoTrans 2026

FaulTrap is a leading manufacturer of fuses for urban railway and subway applications, protecting rolling stock, track infrastructure, and passengers against short circuits and severe electrical overcurrents.

Thanks to its in-house laboratory equipped with RMS testing systems, FaulTrap can test fuses designed to operate under intense vibration., constant thermal cycling, and high-voltage current environments.

Primary Applications :

• Traction Power Protection: Fuses isolate faults in the primary propulsion system, including traction motors, rectifiers, and main power inverters
• Current Collection Devices: Installed directly alongside third-rail shoe gears or roof-mounted pantographs to immediately isolate a fault
• Auxiliary Power Circuits: Protect critical non-propulsion equipment such as heating, ventilation, air conditioning (HVAC) systems, lighting, and air compressors
• Signaling and Control: Low-voltage, highly reliable fuses safeguard automated track signaling, communication networks, and wayside control electronics to prevent system-wide shutdowns.