Fronius Symo 12.0-3 208/240V Grid-Tie 3-Phase Transformerless Inverter
The Fronius Symo 12.0-3 (208/240V) is a transformerless, 3-phase grid-tie inverter built for commercial and larger residential solar. It uses dual MPPTs for flexible array design and includes multiple standard protective features in a NEMA 4X enclosure.
Key Specifications
• Model – Fronius Symo 12.0-3 208/240
• Inverter Type – Grid-Tie, Transformerless (3-Phase)
• Grid Connection – 208 / 240V AC
• Max. Output Power – 11,995 VA (208V) / 11,995 VA (240V)
• Max. Continuous Output Current – 33.3 A (208V) / 28.9 A (240V)
• Recommended OCPD / AC Breaker – 45 A (208V) / 40 A (240V)
• Frequency – 60 Hz
• Max. Efficiency – 97.0%
• CEC Efficiency – 96.5% (208V) / 96.5% (240V)
• Total Harmonic Distortion – < 1.75%
• Power Factor – 0 – 1 (ind./cap.)
• Number of MPPT – 2
• MPPT Voltage Range – 300 – 500 V
• Operating Voltage Range – 200 – 600 V
• Max. DC Input Voltage – 600 V
• Max. Usable Input Current (MPPT1 / MPPT2) – 25.0 A / 16.5 A
• Max. Usable Input Current Total (MPPT1 + MPPT2) – 41.5 A
• Max. Admissible Input Current (MPPT1 / MPPT2) – 37.5 A / 24.5 A
• Max. Admissible Input Current Total (MPPT1 + MPPT2) – 62.2 A
• Integrated DC String Fuse Holders – None
• Night Time Consumption – < 1 W
• Cooling – Variable speed fan
• Enclosure Rating – NEMA 4X
• Installation – Indoor and outdoor installation
• Operating Temperature Range – -40°F to 140°F (-40°C to 60°C)
• Humidity – 0 – 100% (non-condensing)
• Dimensions (W × H × D) – 20.1 × 28.5 × 8.9 in (51.1 × 72.4 × 22.6 cm)
• Weight – 91.9 lb (41.7 kg)
• Protective Devices – AFCI & 2014 NEC compliant (Yes); DC disconnect (Yes); DC reverse polarity protection (Yes); Ground fault protection with isolation monitor (Yes); Monitor interruption (Yes)
• Interfaces (Availability) – USB (A socket) (Standard); 2 × RS422 (RJ45 socket) (Standard); Wi-Fi/Ethernet/Serial/Datalogger & webserver (Optional); 6 inputs + 4 digital inputs/outputs (Optional)
