Fronius Argeno 125 AFCI

• Manufacturer Fronius

Fronius Argeno 125 AFCI is a high-efficiency 125 kW three-phase string inverter designed for large commercial and industrial PV systems. With peak efficiency up to 99.1% and DC oversizing up to 250 kWp, it helps you maximise yield from modern high-power modules while keeping system losses low.

The inverter offers 10 independent MPP trackers with two inputs each (up to 20 strings), supporting up to 30 A per MPPT and 20 A per string. That flexibility makes it ideal for complex rooftops and ground-mount layouts where orientation, string length and shading vary across the site.

Safety is built in. The AFCI variant includes Fronius Arc Guard arc-fault detection, integrated DC disconnector, insulation monitoring, residual current monitoring and replaceable Type 1+2 surge protection on both DC and AC sides—helping you meet stringent safety standards with less external hardware.

With IP66 protection, active cooling and reliable operation from -25 °C to +60 °C, the Fronius Argeno 125 AFCI is ready for harsh environments. Integrated Ethernet, datalogger and Solar.web connectivity give you straightforward fleet monitoring and easy integration into smart energy and safety systems.