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Carlo Gavazzi EM24 vs Acrel ADL200

Install fit
Phase support 1P2W, 2P3W, and 3P4W; the IS variant is excluded from 3P3W by the official wiring table. Single-phase low-voltage AC; official sources specify AC 220 V, 50 Hz.
Installation Indoor 4-DIN-module DIN-rail direct-connected installation in a low-voltage switchboard. Indoor 2-module (36 mm) DIN35-rail, direct-connected single-phase installation by qualified personnel; 90 x 36 x 65 mm.
Measurement Direct electrical-variable plus import/export active and reactive energy metering over local RS485 Modbus RTU. Single-phase direct-connected measurement of positive/negative active energy and U, I, P, Q, S, PF, frequency and harmonics.
Max current 65 A 80 A
Meter fit
Accuracy class Class 1 active; Class 2 reactive; V/I 0.5%; P/S 1%. Class 1 active energy.
Current sensing Direct AV9 input, 10 A base, 65 A maximum, 0.5 A minimum and 0.04 A start; no external CT. Direct input, 10 A basic current and 80 A maximum current; no external CTs for this ADL200 direct-connected meter.
Monitoring
Protocol RS485 Modbus RTU RS485 Modbus RTU
Local API Yes Yes
Cloud dependency No vendor cloud required for core metering; local RS485 Modbus RTU access through compatible hardware or software. No vendor cloud required. Display, pulse output and metering work locally; the documented RS485 configuration provides local Modbus RTU access.
Home Assistant Yes Yes
Solar fit
Solar import/export Yes Yes
Buying context
Availability Carlo Gavazzi global product channels; country pages, certification, stock, and distributor availability vary by region. Global Acrel quote/distributor market; availability, certification acceptance, MID configuration and ordering vary by country.
Source check
Last verified Oct 7, 2026 Sep 4, 2026
Product page Official page Official page
Documentation Official docs Official docs
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