The Fronius Symo Advanced 12.0-3 is a three-phase, transformerless inverter built for safety, flexibility, and high ROI. With integrated SunSpec PLC, it’s ideal for commercial and industrial solar systems requiring smart grid readiness, rapid shutdown, and advanced connectivity.
Key Benefits
SunSpec Rapid Shutdown: Integrated PLC transmitter ensures compliance and simplifies system design.
SnapINverter Design: Easy serviceability and installation with streamlined component access.
Smart Grid Ready: Supports advanced grid functions and real-time communication protocols.
Flexible Input Range: Two MPP trackers with broad voltage range allow optimal PV design.
Reliable Cooling: Regulated air cooling enhances thermal performance and inverter lifespan.
Special Technology
SuperFlex Design: Accommodates complex string configurations and varied PV module layouts.
PC Board Replacement: Field-serviceable design allows for minimal downtime and maintenance costs.
Advanced Communication: Wi-Fi, Ethernet, RS422, and USB for remote monitoring and inverter updates.
Integrated Datalogger & Web Server: No external components needed for full monitoring capability.
Warranty
Standard 10-year warranty with optional 15- or 20-year extensions available through Fronius.
Best Uses
Commercial PV Systems: Ideal for 208/240V three-phase grid-tied installations with high reliability needs.
Smart Grid Compliance: NEC 2017 and IEEE 1547 certified for U.S. installations.
Scalable Projects: Suitable for fleet-managed, multi-inverter installations using Fronius Solar.web.
Specifications Table
| Specification |
Data |
| Model |
Symo Advanced 12.0-3 208/240 |
| MPN |
4,210,091,801 |
| AC Nominal Output Power |
11,995 W |
| Max AC Output Power |
11,995 VA |
| Max PV Input |
18,000 W (18 kW) |
| Input Voltage Range |
200 – 600 V |
| Usable MPP Voltage Range |
300 – 500 V |
| Number of MPP Trackers |
2 |
| Max Input Current |
25 A / 16.5 A |
| Short Circuit Current (MPP1 / MPP2) |
37.5 A / 24.8 A |
| Efficiency (Max / CEC) |
97.0% / 96.5% |
| Output Voltage |
208 / 240 VAC |
| Frequency Range |
45 – 60 Hz |
| Max Continuous Output Current |
33.3 A @ 208V / 28.9 A @ 240V |
| OCPD / Breaker Size |
45 A @ 208V / 40 A @ 240V |
| Protection Class |
NEMA 4X |
| Operating Temp Range |
-40°F to 140°F (-40°C to 60°C) |
| Nighttime Power Consumption |
< 1 W |
| Cooling |
Regulated air cooling |
| Certifications |
UL1741, UL1998, IEEE 1547, NEC 2017, FCC Part 15 A/B |
| Dimensions (H × W × D) |
28.5 × 20.1 × 8.9 in |
| Weight |
91.9 lbs |
| Connectivity |
Wi-Fi, Ethernet, RS422, USB, PLC (SunSpec) |
| Warranty |
10 years (extendable to 15 or 20) |
About Fronius:
Fronius is a leading Austrian manufacturer of solar inverters, known for high efficiency, advanced monitoring, and reliable performance. Their inverters, including the GEN24 and Symo series, support grid-tied and hybrid systems, making them ideal for residential and commercial solar energy solutions.
FAQs
Is the Fronius Symo Advanced 12.0-3 compatible with my solar panels?
Yes, the Symo Advanced is compatible with most commercial and residential solar panels. Your installer will determine the ideal configuration based on your specific system design and site conditions.
Do I need a battery to use the Symo Advanced inverter?
No battery is required. The Symo Advanced functions as a high-efficiency grid-tied inverter. It does not support energy storage directly but integrates well with third-party systems for monitoring and control.
How do I monitor the performance of my Symo Advanced?
The inverter features integrated data communication via Fronius Solar.web. You can monitor system performance, energy production, and diagnostics using the web portal or mobile app.
What happens if there is a power outage?
As a standard grid-tied inverter, the Symo Advanced shuts down during a grid outage for safety reasons unless integrated with an approved backup solution. It does not provide backup power on its own.
How do I maintain the Symo Advanced inverter?
Maintenance is minimal. Regularly check the display or online portal for error messages and ensure the unit remains well-ventilated and free of dust or debris. Your installer may suggest periodic system inspections.
What is the efficiency of the Symo Advanced 12.0-3?
This model offers high efficiency—up to 98.1%, according to the manufacturer’s datasheet. This ensures optimal energy conversion from your solar array to the grid.
What are the input and output voltage ranges?
The inverter supports 208/240V AC output and a wide DC input range. For full input voltage, MPP range, and current limits, consult the official Fronius datasheet.
What communication protocols does the Symo Advanced support?
It comes with integrated Wi-Fi, Ethernet, Modbus RTU/TCP, SunSpec, and ZigBee (optional). This allows seamless integration with smart home systems and third-party monitoring solutions.
