SolaX X1-Micro 800800VA single-phase microinverter for two PV modules

Overview

The X1-Micro 800 is the 800VA model of SolaX's X1-Micro 2 in 1 series, serving two PV modules with one MPP tracker each. Every input accepts up to 15A and 20A short-circuit current, and SolaX lists 320–540W+ as the commonly used module power per input. Output current is 3.48A at 230V, so up to eight units can share a 10AWG branch at that voltage. The 4.1kg IP67 unit has a galvanically isolated design and built-in WiFi for SolaXCloud.

• Two independent MPPT inputs, one module each
• 750–1200VA output on 220/230/240V single phase
• Galvanically isolated HF transformer topology
• Built-in WiFi, module-level data on SolaXCloud
• Rapid shutdown, protection relay, IP67
• EN 50549-1, VDE 4105, CEI 0-21 declaration

How it works

The X1-Micro 2 in 1 connects two PV modules, each to its own MPP tracker, and converts their DC output into single-phase AC directly at the module. Because every module is tracked separately, shading or a fault on one panel does not reduce the yield of the other, and DC voltages stay below 60V. Inside, a galvanically isolated high-frequency transformer separates the PV side from the grid.

Units are linked on the SolaX AC trunk cable and can share an AC branch with other 1 in 1, 2 in 1 or 4 in 1 microinverters within the current limit of that branch. The series works on 220V, 230V and 240V grids, supports reactive power control, AC coupling with an existing storage system and the spreading of single-phase units across a three-phase supply.

Installation and compatibility

The microinverter is mounted on the rail beneath the modules, parallel to the rail, sheltered from direct sun, rain and snow. Earthing is through the earth lug in contact with an earthed rail or through a separate PE conductor. The AC side is protection class I and the DC side class II/III. Unused AC trunk ports must be sealed with end caps, and the branch size follows the model and cable tables in the manual.

The housing measures 260×212×40mm, weighs 4.1kg, is rated IP67 and cooled by natural convection; the operating range is -40°C to +65°C, derating above 45°C. Grid standards listed by SolaX include IEC 61727, IEC 62116, EN 50549-1:2019, G98, VDE 4105 and C10/11, with safety to IEC 62109-1/-2 and IEC 63027. A CEI 0-21 declaration covers the X1-Micro 750 to 1200.

Monitoring and settings

Each unit carries a built-in industrial-grade WiFi module and sends its data to SolaXCloud through the site's router. In the SolaXCloud app the installer creates the site, scans the QR code on the microinverter, enters the WiFi credentials and joins the device hotspot to complete network configuration. Module-level values, history and remote settings are then available on a computer, iOS or Android device.

Questions and answers