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Acrel ADL3000-E vs Carlo Gavazzi EM540

Install fit
Phase support Three-phase three-wire and three-phase four-wire systems. 2-phase 3-wire; 3-phase 3-wire; 3-phase 4-wire; 4-wire delta / wild-leg.
Installation Indoor DIN35 rail three-phase meter; direct-connect ADL3000-E-A and CT-input ADL3000-E-B variants are documented. Indoor 3-DIN DIN-rail direct-connected energy analyzer for low-voltage switchboards.
Measurement Three-phase multifunction energy meter for active/reactive energy, electrical parameters, demand, harmonics, and forward/reverse energy measurement. Direct-connected two/three-phase energy analyzer for import/export active energy and electrical variables over Modbus RTU.
Max current 80 A 65 A
Meter fit
Accuracy class 0.5s kWh accuracy. Active energy Class 1; Class B MID.
Current sensing Direct 3 x 10(80) A and CT-input 3 x 1(6) A variants are documented; confirm ordered variant before installation. Direct connection up to 65 A; no external CTs for the EM540DINAV23XS1X direct-connected model.
Monitoring
Protocol RS485 Modbus RTU RS485 Modbus RTU
Local API Yes Yes
Cloud dependency No vendor cloud required for core metering; ADL3000-E provides local RS485 Modbus RTU communication for SCADA, EMS, gateways, PLCs, or automation systems. No vendor cloud required for core use; EM540DINAV23XS1X exposes local RS485 Modbus RTU data.
Home Assistant Yes Yes
Solar fit
Solar import/export Yes Yes
Buying context
Availability Global Acrel product range; ADL3000-E-B/KC is noted by Acrel for North America market certification context, while local distributor availability varies. Carlo Gavazzi global product channels; stock, approvals, and distributor availability vary by country.
Source check
Last verified Jul 22, 2026 Jun 25, 2026
Product page Official page Official page
Documentation Official docs Official docs
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