Device Comparisons

Compare devices side by side

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

Free Compare

Build your own comparison

Clear
Selected Devices

Carlo Gavazzi EM511DINAV81XS1PFB vs Carlo Gavazzi EM540DINAV23XS1X

Install fit
Phase support Single-phase two-wire, 230 V L-N at 50 Hz (MID PFB variant). 2P 3-wire, 3P 3-wire, 3P+N 4-wire, and 3P 4-wire delta; 120-240 V L-N / 208-415 V L-L; 50/60 Hz.
Installation Indoor 1-module (18 mm) DIN-rail switchboard installation; direct line-and-neutral wiring by qualified personnel. Indoor 3-module DIN-rail direct-connected installation by a qualified electrician; IP40 front and IP20 terminals inside a suitable panel.
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. Direct-connected multiphase TRMS measurement with separate imported/exported active and reactive energy, per-phase values, demand and THD.
Max current 45 A 65 A
Meter fit
Accuracy class Class 1 active / MID Class B; Class 2 reactive Class 1 active energy; Class 2 reactive energy; exact X SKU is non-MID
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. Direct connection 5(65) A; no external current transformer
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; display, keypad configuration, UCS software, and RS-485 Modbus RTU provide local operation and data access.
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 product range with localized product and sales channels; exact SKU carries CE, cULus, and UKCA approvals, while stock and suitability vary by market.
Source check
Last verified Sep 16, 2026 Sep 8, 2026
Product page Official page Official page
Documentation Official docs Official docs
Featured

Editor-picked comparisons

Growatt MIN 3000-6000TL-X Growatt MIN 2500-6000TL-XH

Growatt MIN TL-X vs MIN TL-XH

A quick homeowner comparison between Growatt single-phase string and battery-ready inverter families.

Growatt MIN 3000-6000TL-X / Growatt MIN 2500-6000TL-XH