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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; AV8 nominal-voltage range is -30% to +20% (161-276 V L-N). 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 5-module (90 mm) DIN-rail direct-connected installation; IP40 front and IP20 body.
Measurement Single-phase direct-connected active/reactive energy and electrical-variable metering with separate consumption and generation registers. Direct current, voltage and active/reactive power, plus signed four-quadrant active/reactive/apparent energy for multi-tariff and submetering use.
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 path: 32 A rated primary, 5(45) A with Ib 5 A, Imin 0.25 A and Imax 45 A. The 45 A use case requires 6 mm2 wiring and local compliance; 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 vendor cloud required for display, metering or local RS-485 Modbus RTU access; remote monitoring depends on a separate gateway, BMS or platform.
Home Assistant Yes Yes
Solar fit
Solar import/export Yes Yes
Buying context
Price range Unknown GBP 416.47 on Schneider Electric UK on 2026-10-14; regional list/transaction pricing, VAT, stock and delivery vary.
Availability Global Carlo Gavazzi sales network; the exact PFB SKU carries CE and MID for Europe plus UKCA for the United Kingdom. Stock, fiscal-metering acceptance and distribution vary by market. United Kingdom, EU/EEA, United States/Canada, Australia/New Zealand and other Schneider certification markets; ordering, price and stock vary by country.
Source check
Last verified Sep 17, 2026 Oct 14, 2026
Product page Official page Official page
Documentation Official docs Official docs
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