Current & Voltage Sensors for Railway Traction Systems
EN50155-compliant Hall Effect sensors engineered for rolling stock, auxiliary converters, and onboard power systems that operate in the harshest railway environments.
The Railway Measurement Challenge
Railway applications demand sensors that survive extreme temperature swings, continuous mechanical vibration, conducted EMI from traction converters, and stringent safety standards. Off-the-shelf industrial sensors drift, fail insulation tests, or fall outside the EN50155 operating envelope. Specifying the right sensor is the difference between a reliable fleet and costly field failures.
Why Contisys for Railway & Traction?
EN50155:2021 Compliant
Operating temperature class OT4 (-40°C to +85°C) with class TX vibration resistance.
Galvanic Isolation up to 6 kV RMS
Reinforced insulation for primary-to-secondary voltage barriers in traction inverters.
Low Drift over Service Life
Offset and gain drift specified over 20-year revenue service — predictable accuracy from commissioning to overhaul.
Custom Form Factors
Bus-bar, PCB-mount, and split-core variants designed around your converter mechanical envelope.
Key Use Cases
Traction Inverter
DC-link and phase current measurement for IGBT/SiC inverters driving traction motors.
Auxiliary Converter
3-phase output current and DC input monitoring for auxiliary power supplies.
Onboard Battery
Charge/discharge current sensing for onboard lead-acid or Li-ion battery systems.
Earth-Fault Detection
Residual current measurement for safety-critical ground-fault protection.
Recommended Products
Sensors optimized for Railway & Traction applications
Frequently Asked Questions
Need a Custom Solution?
Our engineers can recommend the optimal sensor configuration for your specific Railway & Traction application.