Carlo Gavazzi WM20 3-Phase Power Analyzers

Carlo Gavazzi WM20 3-Phase Power Analyzers are panel-mount, modular 0.5S (kWh) devices capable of measuring most relevant instantaneous electrical variables, harmonic distortion, and energy generation or consumption. Carlo Gavazzi WM20 Power Analyzers are designed for single-, two-, and three-phase systems and are able to manage up to 600VAC systems with a choice of either a 1A or 5A current transformer input. All information gathered is available on a large, bright LCD display and can be transmitted by Modbus, BACnet, and Profibus communication protocols. The WM20 analyzers are ideal for use in a variety of building automation and industrial automation applications.


  • Modular meter
  • Class 0.5S (kWh)
  • Accuracy ±0.2% RDG (current/voltage)
  • Comprehensive four-line LCD display
  • Optical port for programming and data logging
  • Optional digital output module
  • Alarms can be linked to relay outputs
  • Optional communication module
  • Choice of protocols: Modbus, BACnet, or Profibus
  • cULus listed and CE marked
  • Downloadable configuration software


  • Building automation
    • Outlet power monitoring
    • Sub-metering
  • Industrial automation
    • Monitoring variables and consumption of a single machine
    • Outlet power of an entire manufacturing facility


  • -25°C to +55°C operating temperature range
  • Protection grade
    • IP65 NEMA 4x NEMA 12
    • IP20 terminals
  • Cat. III overvoltage category
  • Pollution degree 2
  • 100dB rejection (CMRR), from 42Hz to 62Hz


Chart - Carlo Gavazzi WM20 3-Phase Power Analyzers
Published: 2021-01-20 | Updated: 2022-03-11