MSA500 – Hall effect transducer


The Mors Smitt transducers are used to measure high currents in rolling stock and trackside applications. High currents are converted linearly to low power signals.

The transducers are based on compensating the magnetic field by a closed loop system. The MSA500 is used for the measurement of AC and DC currents with high galvanic isolation between the current carrying conductor and output of the sensor. The current transducer can handle pulsed currents. The MSA500 Series is specially designed for secure measuring of a permanent current up to 500 A. The current measuring range covers a bandwidth from -1000 A…1000 A.


  • Specially designed for railway applications
  • Closed loop (compensated)
  • High dielectric strength
  • Precise linearity
  • Precise accuracy
  • High dynamic response
  • No foucault losses in the magnetic circuit
  • EMC shielding (optional)
  • Wide temperature range, -50 ºC..+85 ºC

Railway Compliancy

All our hall effect sensors are designed according to railway regulations:

  • EN 50155 Railway application
  • electronic equipment used in rolling stock
  • IEC 61373 Rolling stock equipment Shock and vibration test
  • NF F16-101/102 Fire behavior – Railway rolling stock
  • IEC 60068-2-11 Environmental testing: Salt mist – Test ka – 96 hours



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