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IAMMETER WEM3046T vs Carlo Gavazzi EM24

Install fit
Phase support Three-phase 4-wire WYE/Star; also used by IAMMETER for single-phase-as-3-meters and split-phase scenarios. 1P2W, 3P3W, and 3P4W systems for the AV9 direct-connected model.
Installation 2-pole DIN-rail meter with external xxx:5A CT wiring. Indoor 4-DIN DIN-rail mounted direct-connected energy analyzer for low-voltage switchboards.
Measurement Three-phase 5 A CT-input Wi-Fi energy meter with bidirectional active energy and electrical-parameter monitoring. Direct-connected single/three-phase active and reactive energy analyzer with Modbus RTU and electrical-variable monitoring.
Max current Unknown 65 A
Meter fit
Accuracy class Class 1 active energy; +/-1.0% V/I/active power. Active energy Class 1 / Class B MID; reactive energy Class 2.
Current sensing No bundled primary CTs; connects to third-party external CTs with 5 A secondary output, such as 600:5A, 800:5A, 1000:5A or larger ratios. Direct connection up to 65 A; no external CTs for EM24DINAV93XISX.
Monitoring
Protocol Wi-Fi / HTTP / MQTT / Modbus TCP / RS485 Modbus RTU / Local API RS485 Modbus RTU
Local API Yes Yes
Cloud dependency IAMMETER Cloud/app is available, but local LAN HTTP GET, Modbus TCP/RTU, MQTT, and user-specified server upload paths are documented. No vendor cloud required for core metering; local RS485 Modbus RTU access through compatible hardware or software.
Home Assistant Yes Yes
Solar fit
Solar import/export Yes Yes
Buying context
Availability Global IAMMETER channels with China, USA, Australia, and Germany warehouse/platform lanes listed for WEM3046T; regional stock and CT selection vary by seller. Carlo Gavazzi global product channels; country pages, certification, stock, and distributor availability vary by region.
Source check
Last verified Jun 15, 2026 Jun 27, 2026
Product page Official page Official page
Documentation Official docs Official docs
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