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Carlo Gavazzi EM540 vs Acrel ADL200

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. Single-phase low-voltage AC; official sources specify AC 220 V, 50 Hz.
Installation Indoor 3-DIN DIN-rail direct-connected energy analyzer for low-voltage switchboards. Indoor 2-module (36 mm) DIN35-rail, direct-connected single-phase installation by qualified personnel; 90 x 36 x 65 mm.
Measurement Direct TRMS bidirectional active/reactive/apparent energy and power, demand, PF, frequency, and current/voltage THD to the 15th harmonic; non-MID XS1X. Single-phase direct-connected measurement of positive/negative active energy and U, I, P, Q, S, PF, frequency and harmonics.
Max current 65 A 80 A
Meter fit
Accuracy class Class 1 active energy; Class 2 reactive energy; XS1X is non-MID. Class 1 active energy.
Current sensing Direct 5(65) A input; 0.25 A minimum and 20 mA start-up current; no external CT. Direct input, 10 A basic current and 80 A maximum current; no external CTs for this ADL200 direct-connected meter.
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 vendor cloud required. Display, pulse output and metering work locally; the documented RS485 configuration provides local Modbus RTU access.
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 quote/distributor market; availability, certification acceptance, MID configuration and ordering vary by country.
Source check
Last verified Oct 3, 2026 Sep 4, 2026
Product page Official page Official page
Documentation Official docs Official docs
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