SolaX X1 Mini 1.5kW Single-Phase Inverter

SolaX X1 Mini G4 X1-MINI-1.5K-G4 is a single-phase photovoltaic inverter rated at 1.5 kW from the X1-MINI G4 range. The check was carried out on the official SolaX page: the series includes the X1-MINI-1.5K-G4 variant and covers sizes from 0.6 kW to 3.3 kW.

For the 1.5K-G4 variant, SolaX states a recommended maximum PV power of 3 kWp, MPPT range 40-450 V, 1 MPPT with 1 string, maximum input current per MPPT of 16 A, nominal AC power 1500 W, AC voltage 1 / N / PE, 220 / 230 / 240 V, protection rating IP66, dimensions 290 x 206 x 120 mm, and net weight 5.2 kg.

Why choose SolaX X1 Mini G4 1.5 kW

This inverter is suitable for small single-phase photovoltaic systems where a compact unit is needed, properly sized to the PV array and suitable for limited technical spaces. The X1-MINI G4 series is described by SolaX as ultra-compact, smaller than an A4 sheet, designed also for balconies and installations with limited space.

The 1.5 kW size should be chosen when the project requires limited power. It is not the right product for larger systems: in that case you should move to a higher size, avoiding forcing the sizing just to save a few euros.

Verified specifications

• Model: X1-MINI-1.5K-G4
• Series: SolaX X1-MINI G4
• Type: single-phase photovoltaic inverter
• Nominal AC power: 1500 W
• Recommended maximum PV power: 3 kWp
• MPPT range: 40-450 V
• MPP trackers / strings: 1 / 1
• Maximum MPPT input current: 16 A
• Nominal AC voltage: 1 / N / PE, 220 / 230 / 240 V
• Protection rating: IP66
• Dimensions: 290 x 206 x 120 mm
• Net weight: 5.2 kg

Advantages of the X1-MINI G4 series

• Ultra-compact format: SolaX states it is smaller than an A4 sheet, useful in tight spaces.
• 16 A input: suitable for modern PV modules with higher currents.
• PV oversizing up to 200%: feature stated by SolaX for the X1-MINI G4 series.
• Wide MPPT range: 40-450 V on the 1.5K-G4.
• IP66 protection: correct value from the official datasheet, not IP65.
• Safety functions: SolaX indicates Type II SPD on the AC and DC side, Rapid Shutdown ready, optional AFCI support, and integrated export control.

When to use it

The SolaX X1-MINI-1.5K-G4 is suitable for small single-phase residential photovoltaic systems, compact installations, balconies, retrofits, and configurations where the PV array matches a nominal AC power of 1500 W. The recommended PV power up to 3 kWp allows balanced sizing, but it must always be verified by the designer based on modules, orientation, voltages, currents, and grid requirements.

What to check before purchase

• That the PV array power is compatible with the 1.5 kW size.
• That string voltage and current fall within the inverter limits.
• That the 40-450 V MPPT range is suitable for the module configuration.
• That the grid is single-phase 220 / 230 / 240 V.
• That the external protections required by the design and applicable standards are provided.
• That any optional functions, such as AFCI or Rapid Shutdown, are compatible with the actual configuration.

Frequently asked questions

Does the X1-MINI-1.5K-G4 model really exist in the SolaX range?

Yes. The official SolaX page for the X1-MINI G4 series explicitly lists the X1-MINI-1.5K-G4 variant among the available models.

Is the correct power 1.5 kW?

Yes. For the X1-MINI-1.5K-G4 variant, SolaX indicates a nominal AC power of 1500 W.

Is the protection rating IP65 or IP66?

The correct figure from an official source is IP66. The previous IP65 was less accurate and should be considered outdated.

What is the recommended maximum PV power?

For the X1-MINI-1.5K-G4 model, SolaX indicates a recommended maximum PV power of 3 kWp.

How many MPPTs does it have?

The 1.5K-G4 variant has 1 MPP tracker with 1 string per MPP tracker.

What is the MPPT range?

The MPPT range stated for the 1.5K-G4 model is 40-450 V.

What is the maximum input current?

SolaX indicates a maximum input current per MPPT of 16 A.

What AC voltage does it support?

The stated nominal AC voltage is 1 / N / PE, 220 / 230 / 240 V.

What are the dimensions and weight?

The stated dimensions are 290 x 206 x 120 mm and the net weight is 5.2 kg.

Is it suitable for any photovoltaic system?

No. It should be used only when voltages, currents, PV power, single-phase grid, and string configuration are compatible with the model limits.

Do you need a qualified installer?

Yes. The inverter must be installed and configured by qualified personnel, in compliance with the electrical design, the distributor’s requirements, and applicable standards.

Why is it important not to confuse it with other X1-MINI G4 models?

The series includes many sizes, from 0.6 kW to 3.3 kW. Each variant has its own electrical data: this sheet refers specifically to the model X1-MINI-1.5K-G4.