Fronius Symo Advanced Tri 12.5 kW Grid Inverter – 12.5-3-M
Fronius Symo Advanced 12.5 kVA: Intelligence at the Service of Your Solar Energy
The Fronius Symo Advanced 12.5 kVA is a high-performance three-phase inverter, designed to optimize the electricity production of your photovoltaic installation. With its innovative technologies and proven reliability, it offers a tailored solution for demanding professionals and individuals.
Why choose it?
- Maximum safety: Protect your investment with Fronius Arc Guard, an advanced safety system that detects and instantly neutralizes electrical arc risks.
- Unmatched flexibility: Adapt your installation to any roof configuration with SuperFlex Design. No more constraints, more freedom.
- Optimized performance: Maximize your energy production, even in shaded conditions, thanks to Dynamic Peak Manager.
- Easy installation: Enjoy fast and easy installation with SnapINverter technology.
Key advantages of the Fronius Symo Advanced:
- Peace of mind: Sleep soundly with enhanced protection.
- Exceptional energy efficiency: Reduce your electricity bills and increase your energy autonomy.
- Tailor-made installation: Adapt your system to your specific needs and roof configuration.
- Durability: Invest in a lasting solution for the future of your energy.
Fronius Symo Advanced: The future of solar energy, starting today.
Fronius Symo Advanced: Simplify your solar installations with unrivalled flexibility
A safe evolution
The Fronius Symo Advanced opens a new chapter in the Fronius SnapINverter range. Performance proven millions of times over, combined with new safety technology. This makes Fronius Symo Advanced more than ever a forward-looking choice for installers and their customers.
More safety included
Detect, intervene, learn: that's how the new Fronius Arc Guard technology protects against dangerous arcs. The algorithm developed by Fronius reliably detects arcs and switches off the photovoltaic system before a fire breaks out. Fronius Arc Guard is continuously improved by the manufacturer to refine arc detection and optimize system protection.
Infinite freedom
Simple planning of complex roofs: it's possible with SuperFlex Design. Solar modules can be aligned and connected in a highly flexible way, as the Fronius Symo Advanced handles a wide range of input voltages and very high PV module currents.
Optimum performance right from the factory
Maximum yield, even when solar modules are partially shaded: that's what Fronius Symo Advanced achieves with Dynamic Peak Manager. The intelligent software-based shading management is factory-installed and requires no additional components.
Efficiency

Data sheet
- Inverter power in VA
- 12000 VA
- Phase
- Triphasé
- Number of MPPT
- 2 MPPT
- Width
- 510 mm
- Height
- 725 mm
- Thickness
- 225 mm
- IP protection
- IP 66
- Type of cooling
- Active cooling technology
- Humidity
- 0 à 100 %
- Weight
- 38.4 kg
- Ambient temperature
- -20°C~60°C
- Max. input current (Idc max
- 27.0(MPPT1) - 16.5 (MPPT2)
- Max. useful input current (Idc max MPPT 1+2)
- 43,5
- Max. short-circuit current of MPP1/MPP2 photovoltaic generator (Isc pv)
- 55.7 (MPPT1) - 34 (MPPT2)
- DC input voltage range (Udc min - Udc max)
- 200 À 1 000
- Injection start voltage (Udc start)
- 200
- Useful MPP voltage range
- 200 À 800
- MPP voltage range (at rated power) (Umpp min - Umpp max)
- 320 À 800
- Number of DC connectors
- 3
- Max. PV generator power (Pdc max)
- 18,800 Wp
- Rated AC power (Pac,r)
- 12 500 W
- Max. output power / apparent power
- 12 500 VA
- AC output current (Iac nom)
- 18.9 A (380 VAC) - 18 (400 VAC)
- Mains coupling (voltage range)
- 3-NPE 400 V / 230 V ou 3~NPE 380 V / 220 V (+20 % / -30 %)
- Frequency (frequency range)
- 50 / 60 (45 - 65) Hz
- Harmonic distortion rate
- est inférieur à 2,0
- Power factor (cos φac,r)
- 0 – 1 ind. / cap.
- Protection class
- 1
- Overvoltage category (DC / AC)
- 2/3
- Night-time consumption
- less than 1 W
- Inverter concept
- Transformerless
- Assembly
- Montage intérieur et extérieur
- Max. height above sea level
- 2 000 / 3 400 m
- DC connector technology
- Bornes à vis 2,5 à 16 mm² 6x DC+ et 6x DC
- AC connector technology
- AC screw terminals 2.5 to 16 mm2 5-pole
Specific References
- UPC
- 712971130081
- EAN13
- 0712971130081
Fronius Symo Advanced Tri 12.5 kW Grid Inverter – 12.5-3-M — Inverters and converters
Fronius Symo Advanced Tri 12.5 kW Grid Inverter – 12.5-3-M by Fronius is available in our Inverters and converters catalog. Technical specifications: inverter power in va: 12000 VA, phase: Triphasé, number of mppt: 2 MPPT, width: 510 mm, height: 725 mm, thickness: 225 mm, ip protection: IP 66, type of cooling: Active cooling technology, humidity: 0 à 100 %, weight: 38.4 kg, ambient temperature: -20°C~60°C, max. input current (idc max: 27.0(MPPT1) - 16.5 (MPPT2), max. useful input current (idc max mppt 1+2): 43,5, max. short-circuit current of mpp1/mpp2 photovoltaic generator (isc pv): 55.7 (MPPT1) - 34 (MPPT2), dc input voltage range (udc min - udc max): 200 À 1 000, injection start voltage (udc start): 200, useful mpp voltage range: 200 À 800, mpp voltage range (at rated power) (umpp min - umpp max): 320 À 800, number of dc connectors: 3, max. pv generator power (pdc max): 18,800 Wp, rated ac power (pac,r): 12 500 W, max. output power / apparent power: 12 500 VA, ac output current (iac nom): 18.9 A (380 VAC) - 18 (400 VAC), mains coupling (voltage range): 3-NPE 400 V / 230 V ou 3~NPE 380 V / 220 V (+20 % / -30 %), frequency (frequency range): 50 / 60 (45 - 65) Hz, harmonic distortion rate: est inférieur à 2,0, power factor (cos φac,r): 0 – 1 ind. / cap., protection class: 1, overvoltage category (dc / ac): 2/3, night-time consumption: less than 1 W, inverter concept: Transformerless, assembly: Montage intérieur et extérieur, max. height above sea level: 2 000 / 3 400 m, dc connector technology: Bornes à vis 2,5 à 16 mm² 6x DC+ et 6x DC, ac connector technology: AC screw terminals 2.5 to 16 mm2 5-pole. Product weight: 20.5 kg. Reference: Symo Advanced 12.5-3-M.