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IAMMETER WEM3046T vs Aeotec Home Energy Meter

Install fit
Phase support Three-phase 4-wire WYE/Star; also used by IAMMETER for single-phase-as-3-meters and split-phase scenarios. Region-specific 1-phase, 2-phase / split-phase, and 3-phase ZW095 variants.
Installation 2-pole DIN-rail meter with external xxx:5A CT wiring. Electrical-panel clamp-meter installation; US versions use plug-in power and EU versions are wired in. Licensed-electrician installation recommended.
Measurement Three-phase 5 A CT-input Wi-Fi energy meter with bidirectional active energy and electrical-parameter monitoring. Clamp-based Z-Wave whole-home energy meter for consumption and solar / generator overproduction monitoring.
Max current Unknown 200 A
Meter fit
Accuracy class Class 1 active energy; +/-1.0% V/I/active power. Over 99% measurement accuracy when current is greater than 0.05 A
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. ZW095 clamp SKUs: US 2-clamp 200 A version; EU 1-clamp 60 A and 3-clamp 60 A variants.
Monitoring
Protocol Wi-Fi / HTTP / MQTT / Modbus TCP / RS485 Modbus RTU / Local API Z-Wave Plus
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 Aeotec cloud is required; the meter reports locally over Z-Wave to a compatible gateway. Remote app/cloud behavior depends on the chosen hub.
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. Global / region-specific Aeotec Z-Wave SKUs; availability depends on local Aeotec retailer or distributor stock.
Source check
Last verified Jun 15, 2026 Jun 21, 2026
Product page Official page Official page
Documentation Official docs Official docs
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