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Carlo Gavazzi EM24 vs Acrel ACR10R-D16TE

Install fit
Phase support 1P2W, 2P3W, and 3P4W; the IS variant is excluded from 3P3W by the official wiring table. Single-phase two-wire (1P2L); exact product page lists AC 100 V or 400 V rated-voltage configurations, 45-65 Hz.
Installation Indoor 4-DIN-module DIN-rail direct-connected installation in a low-voltage switchboard. Indoor rail-mounted installation by a qualified electrician with the external split-core CT; exact D16 suffix denotes a 16 mm CT aperture.
Measurement Direct electrical-variable plus import/export active and reactive energy metering over local RS485 Modbus RTU. External-CT voltage, current, power, frequency, power-factor, and bidirectional active/reactive energy metering.
Max current 65 A 120 A
Meter fit
Accuracy class Class 1 active; Class 2 reactive; V/I 0.5%; P/S 1%. Active energy 0.5 level; reactive energy 1 level.
Current sensing Direct AV9 input, 10 A base, 65 A maximum, 0.5 A minimum and 0.04 A start; no external CT. External open (split-core) CT; exact D16 configuration has a 16 mm aperture and 120 A maximum current.
Monitoring
Protocol RS485 Modbus RTU RS485 Modbus RTU
Local API Yes Yes
Cloud dependency No vendor cloud required for core metering; local RS485 Modbus RTU access through compatible hardware or software. No vendor cloud is required for display, configuration or metering; documented data access is local over RS-485 Modbus RTU.
Home Assistant Yes Yes
Solar fit
Solar import/export Yes Yes
Buying context
Availability Carlo Gavazzi global product channels; country pages, certification, stock, and distributor availability vary by region. Global Acrel product range; local distributor and inverter-bundle availability varies.
Source check
Last verified Oct 7, 2026 Sep 6, 2026
Product page Official page Official page
Documentation Official docs Official docs
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