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Carlo Gavazzi EM111DINAV81XS1PFB vs Schneider Electric Acti9 iEM3155

Install fit
Phase support Single-phase two-wire, 230 V L-N, 50 Hz 1P+N, 3P and 3P+N; 100-277 V L-N or 173-480 V L-L, 50/60 Hz
Installation Indoor 1-module DIN-rail direct-connected installation by a qualified electrician; IP51 front and IP20 terminals inside a suitable cabinet. Indoor DIN-rail direct-connected installation in a suitable electrical panel by a qualified electrician; 90 mm wide, IP40 front and IP20 body.
Measurement Single-phase direct-connected active/reactive energy and electrical-variable metering with separate consumption and generation registers. Direct-input current, voltage, active/reactive power, and signed four-quadrant active/reactive/apparent energy measurement.
Max current 45 A 63 A
Meter fit
Accuracy class Class 1 active energy; MID Class B active energy; Class 2 reactive energy Class 1 active energy; Class B active energy; MID certified
Current sensing AV8 direct connection: normal applications up to 32 A; 5(45) A with 45 A maximum continuous current when 6 mm² wiring and local rules permit; no external CT. Direct input 0-63 A; no external current transformers
Monitoring
Protocol RS-485 Modbus RTU RS-485 Modbus RTU
Local API Yes Yes
Cloud dependency No vendor cloud is required; measurement, display, configuration, and data access operate locally through the meter and RS-485 Modbus RTU. No cloud required; display and RS-485 Modbus RTU data access operate locally. Remote access depends on the separately chosen gateway or platform.
Home Assistant Yes Yes
Solar fit
Solar import/export Yes Yes
Buying context
Availability Global Carlo Gavazzi product range with localized sales routes; exact PFB SKU carries CE, MID (Europe), UKCA, and Nordic E-number listings, while stock and approval needs vary by market. Europe, North America and other Schneider Electric regional markets; certification, stock and ordering vary by country.
Source check
Last verified Aug 13, 2026 Aug 14, 2026
Product page Official page Official page
Documentation Official docs Official docs
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