SOLAX X1-MINI-3.3K-G4 3.3kW Single-Phase Inverter

For homeowners with limited roof space, the SOLAX X1-MINI-3.3K-G4 transforms a compact PV array into a reliable power source. This 3.3 kW single-phase inverter sits quietly on a garage wall, converting DC energy from up to 4 kW of solar panels into grid-compliant AC for everyday appliances.

Key specifications

• Rated AC power output: 3.3 kW
• Max DC input power: 4000 W
• Single MPPT with voltage range 50–450 V
• Max DC input voltage: 500 V
• Max DC input current per MPPT: 14 A
• Max AC output current: 16 A
• Nominal AC voltage: 220/230/240 V
• Frequency: 50/60 Hz
• Max efficiency: 97.8%
• European efficiency: 97.0%
• IP65 protection for outdoor installation
• Operating temperature: -25°C to +60°C
• Natural convection cooling
• Interfaces: RS485, DRM, USB, optional WiFi
• Transformerless topology with LCD display
• 10-year warranty

Why choose it

The X1-MINI-3.3K-G4 balances high efficiency with a compact, fanless design. Its IP65 enclosure withstands rain and dust, while the wide MPPT range captures energy even in low-light conditions. The optional WiFi module enables remote monitoring via the SolaxCloud app, so you can track production from anywhere.

Ideal use cases

• Residential rooftop systems with 3–4 kWp of panels
• Small commercial installations requiring single-phase output
• Retrofit projects where a quiet, maintenance-free inverter is preferred
• Areas with variable grid voltage or frequency

Good to know

Installation requires a qualified electrician and compliance with local grid codes. The inverter supports demand response modes (DRM) for utility coordination. A standard 10-year warranty covers manufacturing defects, with optional extensions available.