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Carlo Gavazzi EM511DINAV81XS1PFB vs Carlo Gavazzi EM111DINAV81XS1PFB

Install fit
Phase support Single-phase two-wire, 230 V L-N at 50 Hz (MID PFB variant). Single-phase two-wire, 230 V L-N, 50 Hz; AV8 nominal-voltage range is -30% to +20% (161-276 V L-N).
Installation Indoor 1-module (18 mm) DIN-rail switchboard installation; direct line-and-neutral wiring by qualified personnel. Indoor 1-module DIN-rail direct-connected installation by a qualified electrician; IP51 front and IP20 terminals inside a suitable cabinet.
Measurement Direct-connected TRMS measurement with separate imported and exported active energy; on the PFB variant, total kWh+ and kWh- are the MID-certified registers. Single-phase direct-connected active/reactive energy and electrical-variable metering with separate consumption and generation registers.
Max current 45 A 45 A
Meter fit
Accuracy class Class 1 active / MID Class B; Class 2 reactive Class 1 active energy; MID Class B active energy; Class 2 reactive energy
Current sensing Built-in direct current path, 0.25 A minimum, 5 A base and 45 A maximum; 0.02 A start-up current; no external CT. 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.
Monitoring
Protocol RS-485 Modbus RTU RS-485 Modbus RTU
Local API Yes Yes
Cloud dependency No vendor cloud is required for metering or configuration; data is available locally on the display and through RS-485 Modbus RTU. No vendor cloud is required; measurement, display, configuration, and data access operate locally through the meter and RS-485 Modbus RTU.
Home Assistant Yes Yes
Solar fit
Solar import/export Yes Yes
Buying context
Availability Global localized Carlo Gavazzi catalogues; exact PFB model is MID-certified, with UKCA/local approval and availability to be verified by country. 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.
Source check
Last verified Sep 16, 2026 Sep 17, 2026
Product page Official page Official page
Documentation Official docs Official docs
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