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Janitza UMG 20CM

SKU: Janitza UMG 20CM


Powerful RCM residual current monitoring already detects leakage currents in their initial stages before they cause system failures or even fires. It is already integrated in the UMG 20CM measuring devices. The measuring current transformer that is required can be installed manually at a later date if required. Continuous RCM monitoring increases the system safety and availability significantly. In specific applications such as the data centre, residual current monitoring is essential due to the high availability requirements. Permanent monitoring and logging of processes in TN-S or TN-C-S systems by continuous acquisition of the operating currents. Permanent residual current monitoring an energy acquisition for complete current distribution. The UMG 20CM can also be connected to LoRaWAN networks over ModBus LoRa interfaces.


  • 20 current measurement channels +/- 0.5 %
  • 4 voltage measurement channels +/- 0.5 %
  • State indication per channel (LEDs)
  • Power Quality
  • Internal RS485 interface (Modbus as Slave)
  • Free network visualisation software GridVis®-Basic

See it in action

See below real life use cases for the UMG 20CM Power Analyser, please contact us if you want to find out how to install or implement your smart energy management solutions using the IQnexus LoRaWAN ModBus Master Transceiver.