Device Comparisons

Compare devices side by side

Choose 2 to 4 devices, or open an editor-picked comparison.

Free Compare

Build your own comparison

Clear
Selected Devices

Acrel ADL400 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 DIN-rail mounted three-phase energy meter; direct and CT wiring variants are documented. Indoor 3-DIN DIN-rail direct-connected energy analyzer for low-voltage switchboards.
Measurement Three-phase Modbus energy meter measuring electrical parameters, active/reactive energy, and forward/reverse energy. 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 Active energy Class 0.5; reactive energy Class 2. Active energy Class 1; Class B MID.
Current sensing Acrel documents 3 x 1(6) A and 3 x 10(80) A input-current variants, with direct-connect and CT wiring examples. 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; ADL400 exposes local RS485 Modbus RTU for SCADA, EMS, gateways, 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 with direct quote/contact routes; local distributor availability and certification context vary by market. Carlo Gavazzi global product channels; stock, approvals, and distributor availability vary by country.
Source check
Last verified Jul 21, 2026 Jun 25, 2026
Product page Official page Official page
Documentation Official docs Official docs
Featured

Editor-picked comparisons

Growatt MIN 3000-6000TL-X Growatt MIN 2500-6000TL-XH

Growatt MIN TL-X vs MIN TL-XH

A quick homeowner comparison between Growatt single-phase string and battery-ready inverter families.

Growatt MIN 3000-6000TL-X / Growatt MIN 2500-6000TL-XH