Device Overview

Carlo Gavazzi EM580 is a 3-DIN direct-connected AC energy analyzer for single-phase and three-phase-with-neutral systems. The EM580DINAV23XS2DET variant reviewed here is a self-powered RS485 Modbus RTU model with MID and Eichrecht context, aimed especially at AC EV charging stations that need fiscal metering, charging-session display, and signed metering data.

Unlike CT-operated meters, this model carries the measured conductors directly through the meter terminals up to 65 A. That makes it most relevant for AC charger cabinets, distribution boards, and projects where a certified direct-connected meter is preferred over a clamp-based monitoring device.

Core Characteristics

The official Carlo Gavazzi product page lists single-phase and three-phase-with-neutral voltage configurations, direct current inputs up to 65 A, RS485 Modbus RTU communication, self power supply, CE, MID, and Eichrecht approvals. The datasheet describes EM580 as a direct connection energy meter for single-phase and three-phase systems up to 400 V line-to-line, with a 128 x 96 matrix LCD.

The meter measures active, reactive, and apparent energy, main electrical variables, and charging-session information. Carlo Gavazzi also highlights 0.001 kWh Modbus resolution, 100 ms data refresh, continuous sampling, OCMF signed data, and support for AFIR display requirements.

Installation And Measurement Fit

EM580 is a DIN-rail device intended for installer-led integration. Its terminals support top-down and bottom-up connection layouts so it can fit different charger cabinet designs. The reviewed EM580DINAV23XS2DET model is direct-connected, so the current sensor setup is recorded as direct connection up to 65 A rather than an external CT arrangement.

For comparison and filtering, this matters because direct-connected meters are simpler to reason about at moderate current levels, while CT meters may be better for larger services or retrofit panels where the meter should not carry the measured current.

Communication And Local Access

The device uses RS485 Modbus RTU. Carlo Gavazzi publishes a dedicated EM580 communication protocol document describing Modbus RTU register access. EnergyMeterHub therefore marks local API support as true for local wired Modbus access through compatible RS485 equipment.

Home Assistant support is recorded as true only in the standards-based sense: a user would typically connect EM580 through a compatible RS485 adapter or gateway and configure Home Assistant's generic Modbus integration. Carlo Gavazzi does not publish a dedicated native Home Assistant integration for EM580.

Solar, Import/Export, And EV-Charging Context

Although Carlo Gavazzi positions EM580 strongly for EV charger fiscal metering, the official sources describe bidirectional imported/exported energy and V2G-ready language. EnergyMeterHub therefore marks solar import/export support as true for bidirectional import/export metering, while the page should still describe its strongest practical fit as AC EV charging and fiscal metering rather than a consumer app-first solar monitor.

Strengths

  • Strong official documentation for EV-charger metering, MID, Eichrecht, AFIR, and OCMF contexts.
  • Direct 65 A connection avoids external CT selection for suitable AC circuits.
  • RS485 Modbus RTU keeps core data access local and standards-based.
  • Signed data and display features make it more specialized than a basic DIN-rail submeter.

Limitations

  • It is not a standalone cloud/app energy monitor; it normally depends on a charger controller, RS485 gateway, EMS, or Modbus-capable platform for visualization.
  • The reviewed source set does not show a direct public checkout price, so purchase availability is recorded through Carlo Gavazzi's official product/contact route.
  • It should not be treated as an EV charger itself; it is an energy meter used inside or alongside AC charger and distribution equipment.

Sources Checked

  • Carlo Gavazzi EM580DINAV23XS2DET official product page
  • Carlo Gavazzi EM580 datasheet
  • Carlo Gavazzi EM580 installation manual
  • Carlo Gavazzi EM580 Modbus communication protocol
  • Carlo Gavazzi EM580 launch article
  • Home Assistant Modbus integration documentation