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Acrel PZ72L-DE/C vs Acrel ADL400

Install fit
Phase support Not AC phase-specific; one-circuit DC metering for solar DC, charging-post, telecom, battery, and DC-panel circuits. Three-phase three-wire and three-phase four-wire systems.
Installation Indoor panel / embedded DC meter; Acrel lists a 75 x 75 mm panel size and 67 x 67 mm cut-out size. Indoor 4-module (72 mm) DIN-rail installation by a qualified electrician; the ADL400 family documents direct-connected and external-CT wiring variants.
Measurement Single-circuit DC voltage, current and power measurement with separately accumulated forward and reverse active energy. Three-phase 3P3W/3P4W electrical-parameter, 1st-31st harmonic, and bidirectional active/reactive energy measurement over local RS485 Modbus RTU.
Max current 2500 A 80 A
Meter fit
Accuracy class Class 0.5. Active energy Class 0.5; reactive energy Class 2; MID/CE listed.
Current sensing External 75 mV shunt or Hall-effect current sensor (0-20 mA or 0-5 V signal); configurable primary-current range up to 2500 A. 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 is required for local display or RS485 Modbus RTU access on the /C 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 / quote route with regional Acrel sites; distributor availability, certification, and ordered options vary by market. Global Acrel product range with direct quote/contact routes; local distributor availability and certification context vary by market.
Source check
Last verified Sep 7, 2026 Sep 5, 2026
Product page Official page Official page
Documentation Official docs Official docs
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