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Carlo Gavazzi EM24 vs Acrel ADL3000-E

Install fit
Phase support 1P2W, 2P3W, and 3P4W; the IS variant is excluded from 3P3W by the official wiring table. Three-phase four-wire (3P4W); ADL3000-E-A direct-input and ADL3000-E-B CT-input variants.
Installation Indoor 4-DIN-module DIN-rail direct-connected installation in a low-voltage switchboard. Indoor DIN35 rail three-phase meter; direct-connect ADL3000-E-A and CT-input ADL3000-E-B variants are documented.
Measurement Direct electrical-variable plus import/export active and reactive energy metering over local RS485 Modbus RTU. Three-phase electrical parameters, demand, harmonics, and forward/reverse active and reactive energy.
Max current 65 A 80 A
Meter fit
Accuracy class Class 1 active; Class 2 reactive; V/I 0.5%; P/S 1%. 0.5s kWh accuracy.
Current sensing Direct AV9 input, 10 A base, 65 A maximum, 0.5 A minimum and 0.04 A start; no external CT. ADL3000-E-A: direct 3 x 10(80) A. ADL3000-E-B: external-CT input 3 x 1(6) A. The 80 A family maximum applies only to the direct-input A variant.
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 cloud required for core metering. Local data uses RS-485 Modbus RTU; confirm the ordered communication configuration.
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 product range; ADL3000-E-B/KC is noted by Acrel for North America market certification context, while local distributor availability varies.
Source check
Last verified Oct 7, 2026 Sep 6, 2026
Product page Official page Official page
Documentation Official docs Official docs
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