Measuring Transducers MT/UMT 51x



Measuring transducers MT 51x are intended for measuring and monitoring single-phase electrical power network. Voltage inputs and current inputs are electrically isolated from the system by means of high resistive input chain and current transformer respectively. It measures true RMS values by means of fast sampling of voltage and current signals, which makes instruments suitable for acquisition of transient events. A built-in microcontroller calculates measurands (voltage, current, frequency, energy, power, power factor, power angles, THD U, THD I, MD) from the measured signals.


  • Measurements of instantaneous values of all single phase values; U, I, P, Q, S, f, φ, energy, THD U, THD I, MD
  • Power accuracy class 0.2
  • 16 adjustable alarms
  • Wide frequency range from 16 Hz to 400 Hz
  • RS 232/RS 485 communication up to 115,200 bit/s or USB communication or Ethernet and USB communication simultaneously
  • MODBUS communication protocol
  • Up to 2 inputs or outputs (analogue outputs, digital inputs, alarm (digital) outputs, pulse outputs)
  • Universal power supply (two voltage ranges)
  • Automatic range of nominal current and voltage (max. 12.5 A and 600 VL-N)
  • Housing for DIN rail mounting
  • User-friendly PC MiQen software