Fronius Symo 12kW Inverter FRO-SA-12-3-208L Advanced

Fronius Symo Advanced 12.0‑3 Lite Inverter (Model FRO‑SA‑12‑3‑208L) is a commercial‑grade, transformerless 3‑phase inverter delivering nearly 12 kW AC output (11,995 VA), designed for 208/240 VAC grid systems.

With dual MPPT trackers supporting high DC oversizing up to 150% (~18 kW DC), it operates across a wide voltage range (200–600 V DC, MPP range 300–500 V), offering installation flexibility and optimal energy harvest.

Featuring an integrated SunSpec PLC transmitter, the inverter is compliant with module-level shutdown codes (e.g. NEC, CA Rule 21). The SnapINverter mounting system allows zero‑tilt tool‑free installation, even in indoor/outdoor environments (tilt permitted 0–90°, shade cover required if <15°).

Safety and efficiency are built-in: 97.0% max efficiency (CEC ~96.5%), night consumption under 1 W, variable-speed fan cooling, and UL/IEEE/FCC certifications, including DC reverse-polarity, AFCI, rapid shutdown, and data communication.

Connectivity includes USB, RS422, Wi‑Fi, and Ethernet with support for Fronius Solar.web, SunSpec Modbus and JSON. Rated for harsh environments, it operates between −40 °C and +60 °C, resists up to 100% humidity, and is IP66/NEMA 4X rated. Standard warranty is 10 years, with optional extension available.