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Carlo Gavazzi EM580 vs Acrel ADL400

Install fit
Phase support Single-phase 2-wire or three-phase 4-wire with neutral; 120-230 V L-N / 208-400 V L-L, 50 Hz; 0.8-1.15 Un. Three-phase three-wire and three-phase four-wire systems.
Installation Indoor 3-DIN DIN-rail direct connection, exact DET variant with top-down power wiring; qualified installation required. Indoor 4-module (72 mm) DIN-rail installation by a qualified electrician; the ADL400 family documents direct-connected and external-CT wiring variants.
Measurement Direct TRMS bidirectional active, reactive and apparent energy plus EV charging-session metering with signed OCMF data over local RS485 Modbus RTU. Three-phase 3P3W/3P4W electrical-parameter, 1st-31st harmonic, and bidirectional active/reactive energy measurement over local RS485 Modbus RTU.
Max current 65 A 80 A
Meter fit
Accuracy class Active energy Class B (MID) / IEC Class 1; reactive energy IEC Class 1. Active energy Class 0.5; reactive energy Class 2; MID/CE listed.
Current sensing Direct input, 0.25-5(65) A; no external CT. Two documented input variants: 3 x 10(80) A and 3 x 1(6) A, with separate direct-connect and external-CT wiring diagrams; confirm the ordered input variant.
Monitoring
Protocol RS485 Modbus RTU RS485 Modbus RTU
Local API Yes Yes
Cloud dependency No vendor cloud required for core metering; EM580 exposes local RS485 Modbus RTU data. No vendor cloud required for core metering; ADL400 exposes local RS485 Modbus RTU for SCADA, EMS, gateways, or automation systems.
Home Assistant Yes Yes
Solar fit
Solar import/export Yes Yes
Buying context
Availability Carlo Gavazzi global product channels; MID/Eichrecht fit is strongest in European EV-charger markets. Global Acrel product range with direct quote/contact routes; local distributor availability and certification context vary by market.
Source check
Last verified Sep 30, 2026 Sep 5, 2026
Product page Official page Official page
Documentation Official docs Official docs
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