Fronius Verto 33.3 SPD 2

The Fronius Verto 33.3 SPD 2 is a three-phase string inverter for grid-connected PV systems in the commercial power segment. With 33.3kW AC nominal output, four MPP trackers and a maximum DC input voltage of 1,000V, it is suitable for complex string configurations with different orientations. The transformerless topology, a European efficiency of 97.8%, and integrated protection functions support efficient, standards-compliant continuous operation. Thanks to WLAN and Ethernet connectivity, the inverter can be integrated into higher-level monitoring and energy management systems. The IP66 protection rating allows indoor and outdoor installation even under demanding environmental conditions, while compact dimensions and MC4 DC connectors simplify installation.

• TechnologyThe inverter operates with a transformerless topology and four independently controlled MPP trackers, enabling efficient operation even for shaded or differently sized strings. The 33.3kW AC nominal output with three-phase grid connection is designed for commercial rooftop systems, agriculture and multi-family residential buildings. An integrated DC load disconnector as well as compliance with VDE-AR-N-4105:2018-11 ensure standards-compliant grid-parallel operation and safe maintenance.
  
  Relevant performance parameters
  • Maximum DC input voltage of 1,000V for long strings and reduced line losses
  • Four MPP trackers for flexible adaptation to different generator fields
  • European efficiency of 97.8% for high annual energy yield
• ConnectivityFor system integration, the Fronius Verto 33.3 SPD 2 features WLAN and wired Ethernet. This enables continuous acquisition of operating data and integration into monitoring platforms. The combination of wireless and fixed network interfaces allows flexible connection both in new buildings and in retrofits without existing data infrastructure.
  
  Communication interfaces
  • WLAN for quick commissioning without additional network cabling
  • Ethernet LAN for stable, long-term data communication in larger systems
• WarrantyThe inverter is supplied with a standard product warranty of two years. This manufacturer warranty can be extended by registration. In addition, a paid warranty extension with a longer term can be taken out, which is particularly relevant for projects with long-term operation and service concepts.
  
  Warranty models
  • 2 years standard warranty from commissioning
  • Registration-dependent extension by several years possible
  • Optional paid extension up to 20 years
• SustainabilityThe inverter’s high efficiency reduces system-related losses and supports resource-efficient system operation. The robust design for long operating times as well as the optional warranty extension promote a sustainable life cycle. The WEEE registration documents compliance with European requirements for the disposal and recycling of electrical equipment.
  
  Environmentally relevant aspects
  • WEEE registration number DE39936572 for regulated take-back
  • High efficiency to minimize conversion losses
• QualityThe enclosure with IP66 protection rating allows outdoor use and provides reliable protection against dust and powerful water jets. With dimensions of 574×865×278mm and a weight of around 44.8kg, the inverter is designed for wall mounting. The build quality is tailored to continuous operation under changing climatic conditions.
  
  Mechanical design
  • IP66 suitable for indoor and outdoor installation
  • Compact design for space-saving installation
• ExpandabilityThanks to the four MPP trackers and the high maximum DC generator power range, the Fronius Verto 33.3 SPD 2 is also suitable for system expansions. Existing PV fields can be supplemented without fundamentally changing the system layout. The communication interfaces also support later integration into higher-level energy management or monitoring systems.
  
  Planning reserves
  • Four MPPTs enable flexible string retrofitting
  • 1,000V DC design for future module and string concepts