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Carlo Gavazzi EM540 vs Acrel ADL3000-E

Install fit
Phase support 2-phase 3-wire; 3-phase 3-wire; 3-phase 4-wire; 4-wire delta / wild-leg. Three-phase three-wire and three-phase four-wire systems.
Installation Indoor 3-DIN DIN-rail direct-connected energy analyzer for low-voltage switchboards. Indoor DIN35 rail three-phase meter; direct-connect ADL3000-E-A and CT-input ADL3000-E-B variants are documented.
Measurement Direct consumption/generation and signed import/export measurement over local Modbus RTU; XS1X is non-MID. Three-phase multifunction energy meter for active/reactive energy, electrical parameters, demand, harmonics, and forward/reverse energy measurement.
Max current 65 A 80 A
Meter fit
Accuracy class Class 1 active energy; Class 2 reactive energy; XS1X is non-MID. 0.5s kWh accuracy.
Current sensing Direct connection up to 65 A; no external CTs for the EM540DINAV23XS1X direct-connected model. Direct 3 x 10(80) A and CT-input 3 x 1(6) A variants are documented; confirm ordered variant before installation.
Monitoring
Protocol RS485 Modbus RTU RS485 Modbus RTU
Local API Yes Yes
Cloud dependency No vendor cloud required for core use; EM540DINAV23XS1X exposes local RS485 Modbus RTU data. No vendor cloud required for core metering; ADL3000-E provides local RS485 Modbus RTU communication for SCADA, EMS, gateways, PLCs, or automation systems.
Home Assistant Yes Yes
Solar fit
Solar import/export Yes Yes
Buying context
Availability North America, Europe and UK; XS1X carries cULus, CE and UKCA. Local stock varies. 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 Aug 25, 2026 Jul 22, 2026
Product page Official page Official page
Documentation Official docs Official docs
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