Sineng SN125PT – 125 kW Three-Phase Commercial String Inverter

The SN125PT from Sineng Electric is a robust and efficient three-phase string inverter tailored for commercial and industrial solar applications. Built to handle high-performance photovoltaic systems, it supports a maximum DC input voltage of 1100 V, features up to five independent MPPTs, and accommodates a maximum input current of 64 A per MPPT.

Safety and durability are engineered into every aspect of the SN125PT. With an IP66 protection rating, C5 anti-corrosion class, built-in arc-fault circuit interrupter (AFCI) and Type II SPD protection on both DC and AC sides, it ensures reliable operation even in harsh outdoor environments.

Energy yield is maximised through compatibility with bifacial PV modules, built-in PID recovery functionality, and support for 1.1× continuous output overload. The device features integrated silicon-carbide components and precise string current detection, enabling high efficiency (up to 99.00%) and enhanced uptime.

Installation and monitoring are streamlined thanks to smart design features like support for both aluminium and copper AC cables, LED and app display modes, RS485/WiFi/4G/Ethernet/PLC communications, and local plus remote maintenance capabilities. These features reduce operational costs and simplify system scaling.

In summary, the SN125PT stands as a high-quality, high-yield solution for large-scale commercial solar projects—delivering excellent conversion efficiency, enhanced safety, strong grid compatibility and simplified O&M.