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Fronius Verto – three-phase string inverter


The Fronius Verto series is a flexible and safe solution for medium-sized commercial and industrial photovoltaic systems. Available in power classes from 25.0 to 33.3 kW, it is ideal for new installations or the expansion of existing systems.

  • 4 MPPTs (with 2 inputs each)
  • Integrated arc fault protection (AFCI)
  • SPD type 1+2 on AC and DC side
  • Integrated DC circuit breaker
  • Communication: LAN, WLAN, RS485
  • Up to 7 years basic warranty (extendable)

Datasheet English

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Fiche technique Français

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Arkusz danych Polski

Complete documentation

Flexibility and optimisation

Thanks to the SuperFlex Design with 4 MPPTs and a wide input voltage range (150 – 870 V), the Fronius Verto easily adapts to installations with different module inclinations or orientations, even allowing the use of high-current modules. The inverter integrates the Dynamic Peak Manager algorithm, which optimises system performance even in partial shading, ensuring maximum energy production.

Advanced safety

Fronius Verto features type 1+2 surge protection devices (SPD) on both the AC and DC sides and an integrated arc fault protection system (Fronius Arc Guard), improving system safety and reducing the risk of component damage or fire.

Simplified installation

The inverter’s design provides a large, protected connection area, simplifying the work of installers. It can be mounted either on the wall or on a flat surface (via an optional kit), offering greater flexibility during installation.

Additional features

  • Protection class IP66
  • Maximum DC input voltage: 1000 V
  • Maximum efficiency up to 98.03%.