Solis S6-GR1P 4K Single Phase Grid-Tied Inverter

The Solis S6-GR1P 4K is a single-phase grid-tied inverter designed for residential solar installations. It features two MPPT inputs with 2 strings maximum, delivering a rated AC output power of 4 kW and supporting a maximum recommended PV array size of 6 kW. The inverter achieves a maximum efficiency of 97.7% and includes integrated arc-fault circuit interrupter (AFCI) protection to reduce fire risk.

Key specifications include a maximum DC input voltage of 600 V, rated AC grid voltage of 220/230 V (1/N/PE), and a maximum output current of 21 A. The inverter operates with an MPPT voltage range of 90–520 V and features super high-frequency switching technology, a wide input voltage range, and a low startup voltage of 120 V. It includes an integrated Export Power Manager (EPM) for flexible grid interaction.

The unit is compact and lightweight at 12 kg with dimensions of 310 × 543 × 160 mm. Protection features include DC reverse-polarity protection, short-circuit protection, output overcurrent protection, surge protection, grid monitoring, anti-islanding protection, and temperature protection. Communication options include RS485, with optional Wi-Fi, LAN, and GPRS modules. The inverter carries a 10-year manufacturer's warranty.