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Acrel ADL3000-E vs Acrel ADL400

Install fit
Phase support Three-phase four-wire (3P4W); ADL3000-E-A direct-input and ADL3000-E-B CT-input variants. Three-phase three-wire and three-phase four-wire systems.
Installation Indoor DIN35 rail three-phase meter; direct-connect ADL3000-E-A and CT-input ADL3000-E-B variants are documented. Indoor 4-module (72 mm) DIN-rail installation by a qualified electrician; the ADL400 family documents direct-connected and external-CT wiring variants.
Measurement Three-phase electrical parameters, demand, harmonics, and forward/reverse active and reactive energy. Three-phase 3P3W/3P4W electrical-parameter, 1st-31st harmonic, and bidirectional active/reactive energy measurement over local RS485 Modbus RTU.
Max current 80 A 80 A
Meter fit
Accuracy class 0.5s kWh accuracy. Active energy Class 0.5; reactive energy Class 2; MID/CE listed.
Current sensing 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. 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 cloud required for core metering. Local data uses RS-485 Modbus RTU; confirm the ordered communication configuration. 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 Global Acrel product range; ADL3000-E-B/KC is noted by Acrel for North America market certification context, while local distributor availability varies. Global Acrel product range with direct quote/contact routes; local distributor availability and certification context vary by market.
Source check
Last verified Sep 6, 2026 Sep 5, 2026
Product page Official page Official page
Documentation Official docs Official docs
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