Solis 5kW Single Phase Inverter: Efficient Power for Modern Homes

The Solis 1P5K-4G-US-APST is a high-performance 5kW string inverter engineered for residential solar arrays. As a core member of the Solis 4G-PLUS series, it delivers a perfect balance of power, reliability, and advanced intelligence. Featuring Dual MPPT (Maximum Power Point Tracking), this inverter ensures that systems installed on rooftops with multiple orientations or minor shading issues reach their peak production potential every day.

Built with safety as a priority, the 1P5K-4G-US-APST includes an integrated Arc Fault Circuit Interrupter (AFCI) to proactively detect and prevent DC arc faults, ensuring your home meets the latest NEC safety requirements. Its lightweight, natural convection cooling design means no noisy fans and a simpler, faster installation process for contractors and DIY enthusiasts alike.

Key Technical Advantages:

• Optimized Energy Harvest: Dual MPPT trackers allow for two separate strings of panels, maximizing energy yield on homes with East-West roof configurations.
• Superior Efficiency: Achieves a peak efficiency of 97.8% with an ultra-low startup voltage of 120V, allowing the system to begin producing energy earlier in the morning.
• Code-Compliant Safety: Fully integrated AFCI and compliance with UL 1741 SB, IEEE 1547-2018, and California Rule 21 standards.
• Rugged Durability: NEMA 4X (IP65) rated enclosure provides maximum protection against humidity, salt air, and extreme weather conditions.
• Whisper-Quiet Performance: Fanless design uses natural convection cooling, making it ideal for indoor or outdoor residential mounting.
• Cloud-Ready Monitoring: Easily pair with Solis WiFi or LAN sticks for comprehensive system tracking via the SolisCloud mobile app.

Technical Specifications:

Technical Tip: To maximize the 25-year design life of this inverter, ensure it is installed in a shaded area or use a solar inverter cover if mounting in direct afternoon sun.