Solar inverter Fronius Symo 12.5kW -3-M Light
Solar inverter Fronius Symo 12.5kW -3-M Light

Solar inverter Fronius Symo 12.5kW -3-M Light

Tax included

Fronius Symo 12500W three-phase solar inverter for grid connection

The Fronius Symo line of pure sine wave inverters offers superior performance for residential and commercial three-phase installations. The Symo inverters stand out for using transformerless technology, internet connection via WLAN or ethernet cable integrated into the inverter without the need for additional components.

The Austrian brand's robust electronics and mechanical design make Fronius Symo inverters the best choice for reliability. Designed for long life with short-circuit, overload and high temperature protection, the Fronius Symo is a safe choice for any solar installation that wants to operate for many years. 7-year product warranty and CE certification


The Fronius solar inverter of the Symo series is a three-phase inverter (unlike its Primo brothers) of grid connection without transformer that allows the synchronization of the solar installation with the electrical grid also three-phase.

All models of the Fronius Symo series incorporate two MPPT's (Maximum Power Point Tracking) and are IP65 rated. The Symo Lite/Light solar inverter models do not incorporate Wlan communications for remote management and monitoring unlike the Full models of the same series. The Symo series solar inverters have a standard interface to the internet through a Wlan or Ethernet cable for easy integration. The Fronius Symo inverters include datamanager and free connection to the solarweb portal, which allows a clear and remote monitoring of the three-phase solar installation. 

The Fronius Symo solar inverters have a zero grid feed-in system that allows us to reduce the inverter power to prevent energy from being fed into the grid in the event that the solar installation produces more electricity than it is consuming.

The main advantages of the Symo series of Fronius are:

  • - SnapInverter technology: The primo solar inverter is attached to the fixed wall bracket. In case of service it is not necessary to remove the entire inverter, but only the power stage to access the inside of the device. All wiring remains in place for quick and easy manipulation of the inverter wiring.
  • - Integrated Data Communication: The Primo inverter can be connected to the internet via WLAN, ethernet without the need for additional modules. It can be connected via Modbus TCP SunSpec, Modbus RTU SunSpec or Fronius Solar API (JSON).
  • - Smart Grid Ready: The Fronius solar inverter of the Primo series is ready to connect to smart grids so that they can remotely control the active and reactive energy injected into the grid.
  • - Dynamic Peak manager: new algorithm for tracking the highest power point for each MPPT. The Dynamic Peak Manager sweeps the I-V curve from time to time to find the best working point.
  • - Active Cooling: The Symo series has a ventilation system that cools the internal circuit of the inverter, improving its performance and the life of its electronics.

General inverter features:


SYMO 12,5-3-M-Light

Maximum input power (W)

18800 W







Product warranty


2 years


72,5x54,0x22,5 cm




Package Weight (kg)


34,8 kg

Power (kW)
10 - 14.9
Phase Type
Max Current Input (A)
All product reviews comply with DIRECTIVE (EU) 2019/2161

iqitcookielaw - module, put here your own cookie law text