Carlo Gavazzi EM511 Energy Analyzers

Carlo Gavazzi EM511 Energy Analyzers are designed for 1-phase systems up to 240V L-N and current up to 45A. These analyzers offer enhanced readability due to the backlight display that ensures perfect visibility even in low light. The different sizes of the digits preceding and following the dot make the displayed values easier to read. Two mechanical keys are designed to make the page configuration and browsing intuitive. Quick configuration is provided due to the configuration wizard that runs when the system is started up for the first time, allowing the user to commission the unit without errors in seconds. Carlo Gavazzi EM511 Energy Analyzers can be installed in any low-voltage switchboard with a rated current of up to 45A to monitor energy consumption, the main electrical variables, and the harmonic distortion.


  • Real-time variables (V L-N, A, W/var, VA, PF, Hz)
  • Displaying consumed active energy with 0.001kWh resolution
  • Frequency value available via Modbus, with 0.001Hz resolution
  • Average value calculation (dmd) for current and power (kW / kVA)
  • Modbus RTU RS485 or M-Bus communication (data refresh every 100ms)
  • Continuous sampling of voltage and current
  • Backlit LCD display
  • cULus approved (UL 61010)


  • Functions
    • Measures active, reactive, and apparent energy
    • Measures main electrical variables
    • Measures load run hours of the analyzer
    • Measures total harmonic distortion (THD) of current and voltages
    • Transmits data to other systems through Modbus RTU or M-Bus
    • Manages digital output for pulses or alarm transmission
    • Visualizes measured variables on the display
  • PBT housing
  • Polycarbonate transparent cover
  • IP40 front protection
  • IP20 terminal protection
  • Cat III overvoltage category
  • Pollution degree 2
  • DIN rail mounting
Published: 2023-09-15 | Updated: 2023-09-28