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Carlo Gavazzi EM540 vs Acrel ADL3000-E

Install fit
Phase support 2-phase 3-wire; 3-phase 3-/4-wire including wild-leg; 120-240 V L-N, 208-415 V L-L, 45-65 Hz. Three-phase four-wire (3P4W); ADL3000-E-A direct-input and ADL3000-E-B CT-input variants.
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 TRMS bidirectional active/reactive/apparent energy and power, demand, PF, frequency, and current/voltage THD to the 15th harmonic; non-MID XS1X. 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 energy; Class 2 reactive energy; XS1X is non-MID. 0.5s kWh accuracy.
Current sensing Direct 5(65) A input; 0.25 A minimum and 20 mA start-up current; 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 use; EM540DINAV23XS1X exposes local RS485 Modbus RTU data. 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 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 Oct 3, 2026 Sep 6, 2026
Product page Official page Official page
Documentation Official docs Official docs
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