Lean meters

MT631/MT632 – Modular and lean electricity meter

The MT631/MT632 three-phase basic meter was developed specifically for the German market and meets the specifications of the FNN MS2020 project and the strict market requirements. This lean electricity meter is intended for use in households and small businesses.


  • Long-term stability of measurement accuracy
  • Excellent reliability and long service life
  • Suitable for photovoltaic systems (EEG systems)
  • Modular structure
  • Direct exclusion to SMGW
  • Data security in accordance with BSI requirements
  • Compact housing made of self-extinguishing polycarbonate
  • Two-line information display
  • LMN communication interface under the module cover
  • Front INFO IR communication interface

Key benefits

  • Magnetic field manipulation detection
  • Suitable for EEG systems
  • Historical consumption data
  • External tariff setting using two auxiliary terminals according to EDL LH specification
  • Data protection via PIN
  • Terminal block cover position detection
  • Signature formation
  • Optical display of the operation
  • Unidirectional or bidirectional energy measurement
  • DIN terminal block

MT631/632 Modular electricity meter

Would you like to know more about the product? Make sure to download the brochure and get more information about the features, benefits and technical specifications.

Smart energy product portfolio

Our robust portfolio of smart metering solutions enables us to predict future needs for efficient energy management. Based on digitized IoT solutions, our products and services provide utilities with the data they need to manage energy consumption, anticipate demand and optimize costs.