Solis S5-GR3P5K Three-Phase Inverter 5 kW

The Solis S5-GR3P5K is a three-phase grid-tied inverter rated at 5 kW AC output, designed for residential and small commercial PV systems. It features two independent MPPT trackers supporting up to 2 input strings, with a maximum recommended PV input of 7.5 kW and wide MPPT voltage range of 160–1000 V. Maximum efficiency reaches 98.6%, with a compact, transformerless design and IP66 ingress protection.

Safety and reliability are integrated throughout: the inverter includes AFCI (arc-fault circuit protection) for fire risk reduction, automatic voltage stabilization for weak grid conditions, anti-islanding protection, and surge protection. It supports RS485 communication with optional WiFi and GPRS modules, enables remote monitoring via SolisCloud, and operates reliably across ambient temperatures from −25 to +60 °C.

Installation is simplified with MC4 DC connectors and quick-connection AC plugs. The unit weighs 17.8 kg and measures 310 × 563 × 219 mm, with natural convection cooling in lower power variants.