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Smappee Infinity vs ABB A43 312-100

Energy Meter

Smappee Infinity

Energy Meter

ABB A43 312-100

ABB A43 312-100 / 2CMA170525R1000

Decision point	Smappee Infinity	ABB A43 312-100

Install fit
Phase support	Single-phase and three-phase installation planning, including 1P, 3P+N / 3 x 400 V, and 3P / 3 x 230 V topologies.	Three-phase three-wire and four-wire systems (2- and 3-element metering)
Installation	Certified-electrician distribution-board installation with Power Box, CT Hub, CTs, Solid Core CTs, or Rogowski coils usually under panel cover.	Indoor 7-module DIN-rail direct-connected installation; professional three- or four-wire panel wiring required.
Measurement	Modular CT/Rogowski energy-management metering system for mains, circuits, solar PV, storage, EV charging, and major loads.	Three-phase direct-connected four-quadrant meter for active/reactive/apparent energy, import/export, electrical parameters, and multi-tariff sub-metering.
Max current	10000 A	80 A
Meter fit
Accuracy class	Solid Core 3-Phase CT: 0.2%; other CTs depend on sensor choice.	MID Class B / IEC Class 1 active energy; Class 2 reactive energy
Current sensing	Modular CT architecture: CT Hub supports up to 4 CTs or Rogowski coils; Smappee documentation supports expansion up to 28 measured inputs.	Direct-connected 80 A measurement; no external CT required
Monitoring
Protocol	Smappee Bus / Wi-Fi / Ethernet / Smappee Cloud / Modbus RTU / MQTT / EEBUS	RS-485 Modbus RTU / EQ Bus / infrared interface / configurable pulse-alarm I/O
Local API	Yes	Yes
Cloud dependency	Smappee Cloud is the normal app/dashboard path; Power Box Modbus RTU can provide local register readout for supported measurements.	No vendor cloud is required; readings and configuration are available locally over RS-485 Modbus RTU / EQ Bus and the meter display.
Home Assistant	Yes	Yes
Solar fit
Solar import/export	Yes	Yes
Buying context
Availability	Europe and international Smappee partner / certified-installer channels; availability varies by country, installer access, and project.	Global ABB product range; official localized product and distributor routes cover Europe, the Americas, Middle East/Africa, and Asia-Pacific, with stock and certification varying by market.
Source check
Last verified	Jul 29, 2026	Aug 12, 2026
Product page	Official page	Official page
Documentation	Official docs	Official docs