SolaX X1-BOOST G4 Single-Phase On-Grid Inverter (2.5kW–6.0kW)

SolaX X1-BOOST G4 single-phase residential on-grid inverter is a high-efficiency solar inverter engineered for residential rooftop photovoltaic systems. Designed for solar installers, EPC contractors, and wholesale distribution partners, this series delivers scalable performance from 2.5kW to 6.0kW, supporting optimized DC/AC ratios, advanced MPPT tracking, and stable grid compliance across diverse residential deployments.

Explore our complete range of solar inverters for wholesale supply to standardize residential and small commercial PV programs.

SolaX X1-BOOST G4 Single-Phase Residential On-Grid Inverter Overview

The SolaX X1-BOOST G4 single-phase residential on-grid inverter supports modern high-power PV modules with up to 200% PV oversizing and 16A input current per MPPT, enabling installers to maximize rooftop energy production while maintaining inverter efficiency. A low 50V start-up voltage ensures earlier daily generation, improving overall system yield.

• Power Classes: 2.5kW / 3.0kW / 3.3kW / 3.6kW / 4.0kW / 4.2kW / 5.0kW / 6.0kW
• Maximum Efficiency: 98.0%
• European Efficiency: 97.0%
• Max PV Input Voltage: 600V
• MPPT Configuration: Dual MPPT (2 / 1 per tracker)

High Efficiency & Flexible PV Adaptability

With dual MPPT tracking and a wide MPPT voltage range (40V–560V), the SolaX X1-BOOST G4 single-phase residential on-grid inverter allows flexible string configuration for rooftops with multiple orientations. Installers can optimize module layout while ensuring stable inverter loading and reduced mismatch losses.

The inverter supports recommended PV array sizes up to 12.0kWp (6kW model), providing greater system design flexibility for EPC contractors managing larger residential portfolios.

Intelligent Monitoring & Smart Energy Integration

The SolaX X1-BOOST G4 single-phase residential on-grid inverter integrates with SolaXCloud monitoring, offering real-time system visibility with 10-second data refresh and IV curve diagnostics. WiFi configuration via mobile app simplifies commissioning and reduces installation time.

Built-in export power control enables compliance with grid-limited installations, while smart load management supports integration with heat pumps and EV chargers, enhancing residential energy ecosystem compatibility.

Safety, Protection & Grid Compliance

Engineered for international grid standards, the SolaX X1-BOOST G4 single-phase residential on-grid inverter incorporates multiple protective features:

• Type II Surge Protection (AC & DC)
• Active anti-islanding protection
• DC reverse-polarity protection
• DC injection monitoring
• Optional AFCI support

Certified to IEC/EN 62109-1/-2, IEC61727, EN50549, G98/G99, AS 4777.2 and VDE4105 standards, the inverter ensures regulatory compliance across multiple international markets.

Environmental & Mechanical Reliability

• Ingress Protection: IP66
• Operating Temperature: -25°C to 60°C
• Max Operating Altitude: 4000m
• Cooling Concept: Natural cooling (fanless)
• Dimensions: 404 × 274 × 146 mm
• Weight: 11.0–11.5 kg

The fanless cooling architecture reduces maintenance risks and enhances long-term reliability for residential PV programs. Adjustable power factor (~1, 0.8 lagging to 0.8 leading) and THDi < 3% ensure stable grid interaction and reduced harmonic distortion.

Performance Stability & Long-Term Deployment Value

The SolaX X1-BOOST G4 single-phase residential on-grid inverter is engineered to deliver consistent performance across long-term residential deployment programs. With high conversion efficiency, stable grid synchronization, and robust thermal management, the inverter supports predictable energy yield and reduced operational risks for installers managing multi-site projects.

Its flexible PV compatibility and dual MPPT configuration enable optimized system design for varied rooftop layouts, ensuring reliable output across seasonal and environmental variations.

Wholesale Supply & EPC Project Support

We supply the SolaX X1-BOOST G4 single-phase residential on-grid inverter exclusively for bulk procurement, EPC tenders, and distributor partnerships. Our B2B supply framework supports structured pricing models, container-level shipments, and standardized deployment across multi-site residential developments.

For official manufacturer documentation and certification updates, visit the SolaX Power official website.

If you are sourcing 2.5kW–6.0kW single-phase residential on-grid inverters for upcoming projects, contact our wholesale solar team to receive project-based pricing, availability schedules, and technical configuration guidance aligned with your regional grid requirements.