SOLAX X1-MINI-3.0K-G4 Single-Phase 1 MPPT 3.0 kW Grid-Tie Inverter

For residential solar installations needing a compact, efficient single-phase grid-tie inverter, the SOLAX X1-MINI-3.0K-G4 delivers 3.0 kW nominal AC output with a single MPPT tracker, ideal for small rooftop arrays. Its transformerless design and IP65 enclosure suit both indoor and outdoor mounting, while the integrated DC switch simplifies installation and maintenance.

Key specifications

• Nominal AC output power: 3.0 kW
• Max AC output power: 3.3 kVA
• Max DC input power: 3.9 kW
• Number of MPPT trackers: 1
• MPPT voltage range: 70 - 450 V
• Max DC input voltage: 500 V
• Start-up voltage: 80 V
• Max efficiency: 97.6%
• European efficiency: 97.0%
• Protection degree: IP65
• Communication interfaces: Wi-Fi (optional), RS485, USB
• Operating temperature range: -25°C to +60°C
• Grid connection type: On-grid
• DC switch: Integrated
• Topology: Transformerless
• Display: LCD
• Noise emission: <25 dB
• Self-consumption (night): <1 W

Why choose it

This inverter pairs high conversion efficiency with a wide MPPT voltage range, ensuring maximum energy harvest even under partial shading or varying panel configurations. Its quiet operation (<25 dB) and low night-time consumption make it unobtrusive in residential settings, while the optional Wi-Fi connectivity allows remote monitoring via the SolaxCloud platform.

Ideal use cases

• Small residential rooftop solar systems (3-4 kWp)
• Garage or carport installations with limited space
• Retrofit projects requiring a single-phase grid connection
• Homeowners seeking a reliable, low-maintenance inverter with smart monitoring

Good to know

The X1-MINI-3.0K-G4 is compatible with most standard PV modules and includes built-in protection against overvoltage, overcurrent, and anti-islanding. Its fanless cooling design reduces dust ingress and extends service life. For system planning, ensure the PV array's maximum power point voltage stays within the 70-450 V range.