Solis S5-GR3P20K Three-Phase Inverter, 20 kW

The Solis S5-GR3P20K is a three-phase grid-tied inverter rated at 20 kW output power, suitable for residential and small commercial PV installations. It features 2 MPPT trackers with 4 input strings, a maximum efficiency of 98.7%, and a wide DC voltage range (160–1000 V). The inverter supports high-power modules with a recommended maximum PV input of 30 kW and a DC/AC ratio exceeding 150%.

Safety and grid compatibility are enhanced by integrated AFCI (arc-fault circuit) protection, automatic voltage stabilization for weak grid conditions, and compliance with major international grid connection standards (G98/G99, EN 50549-1, CEI 0-21, IEC 62116). The IP66-rated enclosure ensures reliable outdoor operation across a wide ambient temperature range (−25 to +60 °C).

Connectivity options include RS485 as standard, with optional Wi-Fi, GPRS, and data logging capabilities accessible through SolisCloud for remote monitoring and firmware updates. The transformerless topology and compact design (310 × 563 × 219 mm, 20 kg) simplify installation and maintenance.