
Voltage limiting devices for railways

Voltage limiting device class 1 with remote indication of status
- Voltage limiting device for railways (type VLD-F) according EN 50526-2 for fast protection of personnel, passengers and equipment even during OCL failure
- Integrated patented VLD-status sensor with remote wireless status signalling for early VLD failure warning
- Stray current (infrastructure corrosion) minimizing through early detection and replacement of damaged VLD
- Ultra-low power consumption of electronics (> 10 years battery lifetime) when status transmitted once a day = no external power supply needed
- No more expensive physical check needed (= OPEX savings)
- For both DC and AC traction systems equipotential bonding in case of break, short-circuit or earth fault of OCL
- Lightning surge protector integrated
Voltage limiting device class 2.1 with high recoverable load
- Voltage limiting device for railways (type VLD-O+F) according to EN 50526-2 for fast protection of personnel, passengers and equipment during train operation and even OCL failure
- Extremely high recoverable load for application as repeatable VLD-F or cheap replacement of VLD class 4
• 25 kA @ 50 ms
• 3 kA @ 30 sec - Industrial design for maximum performance
- Optional patented VLD-O status sensor with remote wireless status signalling for early VLD failure warning for stray current (infrastructure corrosion) minimizing
- No external power supply needed
- For DC traction systems equipotential bonding in case of operational excessive touch voltage, short-circuit or earth fault of OCL
- Lightning surge protector A2 integrated
- HS = with heatsinks; WS = with wireless sensor


Voltage limiting device class 2.2 with high recoverable load
- Voltage limiting device for railways (type VLD-O+F) according to EN 50526-2 for fast protection of personnel, passengers and equipment during train operation and even OCL failure
- Extremely high recoverable load for application as repeatable VLD-F or cheap replacement of VLD class 4
• 25 kA @ 50 ms
• 3 kA @ 30 sec - Industrial design for maximum performance
- Optional patented VLD-status sensor with remote wireless status signalling for early VLD failure warning for stray current (infrastructure corrosion) minimizing
- No external power supply needed
- For both DC and AC traction systems equipotential bonding in case of operational excessive touch voltage, short-circuit or earth fault of OCL
- Lightning surge protector A2 integrated
- HS = with heatsinks; WS = with wireless sensor