Device Comparisons

Compare devices side by side

Choose 2 to 4 devices, or open an editor-picked comparison.

Free Compare

Build your own comparison

Device type

Device 1 Device 2 Device 3 Device 4

Clear

Selected Devices

IAMMETER WEM3046T vs ABB A41 312-100

Energy Meter

IAMMETER WEM3046T

Energy Meter

ABB A41 312-100

ABB A41 312-100 / 2CMA170503R1000

Decision point	IAMMETER WEM3046T	ABB A41 312-100

Install fit
Phase support	Three-phase 4-wire WYE/Star; also used by IAMMETER for single-phase-as-3-meters and split-phase scenarios.	Single-phase 2-wire; nominal 230 V AC, 57.7-288 V L-N operating range, 50/60 Hz +/-5%.
Installation	2-pole DIN-rail meter with external xxx:5A CT wiring.	Indoor 4-module DIN-rail direct-connected installation by a qualified electrician.
Measurement	Three-phase 5 A CT-input Wi-Fi energy meter with bidirectional active energy and electrical-parameter monitoring.	Single-phase direct-connected four-quadrant active/reactive energy and electrical-parameter metering.
Max current	Unknown	80 A
Meter fit
Accuracy class	Class 1 active energy; +/-1.0% V/I/active power.	MID Class B / IEC Class 1 active energy; Class 2 reactive energy
Current sensing	Three external CT channels; no CTs are bundled. Each input accepts a third-party CT with a 5 A secondary output and a user-selected xxx:5A primary ratio.	Built-in direct current path, 0.25 A minimum, 5 A base/reference current and 80 A maximum; no external CT.
Monitoring
Protocol	Wi-Fi / HTTP / MQTT / Modbus TCP / RS485 Modbus RTU / Local API	RS-485 Modbus RTU / EQ Bus
Local API	Yes	Yes
Cloud dependency	Optional IAMMETER Cloud; local HTTP, MQTT, Modbus TCP/RTU and third-party server modes are supported.	No cloud required; display and RS-485 Modbus RTU / EQ Bus provide local access.
Home Assistant	Yes	Yes
Solar fit
Solar import/export	Yes	Yes
Buying context
Price range	Unknown	EUR 919 gross list price via ABB Netherlands; net price, tax and regional pricing vary.
Availability	Global official-store and marketplace availability; local WEM3046T warehouse/platform lanes listed for China, United States, Australia and Germany. Stock and shipping vary.	Global ABB channels; Netherlands official listing verified; stock and certification vary by market.
Source check
Last verified	Oct 5, 2026	Oct 16, 2026
Product page	Official page	Official page
Documentation	Official docs	Official docs