
Original: $3,235.99
-70%$3,235.99
$970.80The Story
Fronius Symo Advanced 20.0-3-M 20kW Three-Phase Grid-Tie Inverter with Arc Fault Detection & Dual MPPT
The Fronius Symo Advanced 20.0-3-M is a robust, high-efficiency 20kW three-phase grid-tied solar inverter with adaptive arc fault protection and flexible system design, engineered for high-yield commercial installations.
Designed and manufactured in Austria, it combines proven SnapINverter architecture with advanced safety and intelligent performance features.
While not intended for standalone off-grid use, the Symo Advanced may be integrated into AC-coupled hybrid systems when supported by a compatible grid-forming inverter.
Intelligent safety with Fronius Arc Guard – adaptive protection for evolving PV environments
The integrated Fronius Arc Guard delivers real-time arc fault detection to prevent electrical fires before they start. Using a proprietary algorithm that continuously learns from field data, the system improves its detection accuracy over time—offering a forward-looking approach to photovoltaic safety. This feature ensures compliance with international standards and adds peace of mind to every installation.
Flexible performance with SuperFlex Design and Dynamic Peak Manager
Dual MPPTs and six DC inputs support complex array configurations with multiple orientations. Thanks to the SuperFlex Design, installers can confidently design systems with wide input voltage ranges (200–1000V) and high current handling (up to 51A combined). The Dynamic Peak Manager actively adapts to shading conditions, ensuring optimal energy harvest throughout the day without external components.
Main Features
20kW Three-Phase Output – Ideal for commercial and industrial solar systems.
Integrated Arc Fault Circuit Interrupter – Fronius Arc Guard with self-learning algorithm for smarter fault prevention.
Dual MPPTs – Flexible layout support for complex rooftops.
Wide Voltage Input Range – Operates from 200–1000V DC, suitable for diverse PV designs.
Dynamic Peak Manager – Built-in shade management without additional devices.
Active Cooling – Ensures continuous operation in high-temperature environments.
SnapINverter Design – Streamlined installation and easy servicing.
Built-in Monitoring – Wi-Fi, Ethernet, Modbus, and Fronius Solar.web integration.
IP66 Protection – Rugged build for indoor or outdoor use.
Quick Specs
- Rated Output: 20,000W / 28.9A (400V)
- Max. PV Input: 30,000W
- Input Voltage Range: 200–1000V DC
- Usable MPP Range: 200–800V
- MPP Voltage at Rated Power: 420–800V
- Efficiency: 97.9% max / 97.6% European
- Weight: 41.96 kg
- Dimensions: 725 x 510 x 225 mm
- Cooling: Active fan-based cooling
- Night Consumption: <1W
- Operating Temp: -25°C to +60°C
- Altitude: Up to 3400m
- Compliance: IEC 62109, AS/NZS 4777.2, CE, EN 50549, VDE, and more
- Warranty: 10 Years (with registration)
- Made in Austria
Specifications
Description
Fronius Symo Advanced 20.0-3-M 20kW Three-Phase Grid-Tie Inverter with Arc Fault Detection & Dual MPPT
The Fronius Symo Advanced 20.0-3-M is a robust, high-efficiency 20kW three-phase grid-tied solar inverter with adaptive arc fault protection and flexible system design, engineered for high-yield commercial installations.
Designed and manufactured in Austria, it combines proven SnapINverter architecture with advanced safety and intelligent performance features.
While not intended for standalone off-grid use, the Symo Advanced may be integrated into AC-coupled hybrid systems when supported by a compatible grid-forming inverter.
Intelligent safety with Fronius Arc Guard – adaptive protection for evolving PV environments
The integrated Fronius Arc Guard delivers real-time arc fault detection to prevent electrical fires before they start. Using a proprietary algorithm that continuously learns from field data, the system improves its detection accuracy over time—offering a forward-looking approach to photovoltaic safety. This feature ensures compliance with international standards and adds peace of mind to every installation.
Flexible performance with SuperFlex Design and Dynamic Peak Manager
Dual MPPTs and six DC inputs support complex array configurations with multiple orientations. Thanks to the SuperFlex Design, installers can confidently design systems with wide input voltage ranges (200–1000V) and high current handling (up to 51A combined). The Dynamic Peak Manager actively adapts to shading conditions, ensuring optimal energy harvest throughout the day without external components.
Main Features
20kW Three-Phase Output – Ideal for commercial and industrial solar systems.
Integrated Arc Fault Circuit Interrupter – Fronius Arc Guard with self-learning algorithm for smarter fault prevention.
Dual MPPTs – Flexible layout support for complex rooftops.
Wide Voltage Input Range – Operates from 200–1000V DC, suitable for diverse PV designs.
Dynamic Peak Manager – Built-in shade management without additional devices.
Active Cooling – Ensures continuous operation in high-temperature environments.
SnapINverter Design – Streamlined installation and easy servicing.
Built-in Monitoring – Wi-Fi, Ethernet, Modbus, and Fronius Solar.web integration.
IP66 Protection – Rugged build for indoor or outdoor use.
Quick Specs
- Rated Output: 20,000W / 28.9A (400V)
- Max. PV Input: 30,000W
- Input Voltage Range: 200–1000V DC
- Usable MPP Range: 200–800V
- MPP Voltage at Rated Power: 420–800V
- Efficiency: 97.9% max / 97.6% European
- Weight: 41.96 kg
- Dimensions: 725 x 510 x 225 mm
- Cooling: Active fan-based cooling
- Night Consumption: <1W
- Operating Temp: -25°C to +60°C
- Altitude: Up to 3400m
- Compliance: IEC 62109, AS/NZS 4777.2, CE, EN 50549, VDE, and more
- Warranty: 10 Years (with registration)
- Made in Austria






















