Fronius Symo Advanced 22.7kW Three-Phase Solar Inverter

The Fronius Symo Advanced 22.7-3 480 Three-Phase Solar Inverter delivers efficient solar power conversion for commercial and industrial photovoltaic systems. Designed for compatible commercial electrical services, this transformerless string inverter combines advanced rapid shutdown communication, flexible solar array design, and the field-serviceable Fronius SnapINverter architecture.

The Symo Advanced incorporates integrated SunSpec Power Line Communication (PLC), enabling communication with compatible rapid shutdown equipment through the solar array's DC wiring. This helps simplify electrical integration and can eliminate the need for a separate SunSpec transmitter in supported configurations.

Fronius SuperFlex Design and independent maximum power point tracking allow installers to accommodate complex commercial rooftops, different module orientations, and varying solar conditions. Its durable weather-resistant enclosure and regulated cooling system support long-term operation in demanding environments.

Key Features and Benefits

• Commercial Three-Phase Power: Designed for grid-connected commercial and industrial photovoltaic installations.
• Integrated SunSpec PLC: Supports communication with compatible module-level rapid shutdown devices without a separate external transmitter in approved configurations.
• UL 3741 System Compatibility: Supports qualifying PV hazard-control system configurations using approved IronRidge or PanelClaw mounting equipment.
• Independent MPPT Tracking: Optimizes energy harvesting from compatible solar strings operating under different conditions.
• SuperFlex Design: Provides flexibility for commercial rooftop layouts with different orientations and string configurations.
• SnapINverter Technology: Hinged mounting architecture simplifies installation, access, and servicing.
• Transformerless Conversion: Delivers efficient conversion of photovoltaic DC electricity into grid-compatible AC power.
• Integrated Arc-Fault Protection: Includes arc-fault circuit interruption for added DC electrical protection.
• Built-In DC Disconnect: Provides integrated DC disconnection functionality.
• Ground Fault Monitoring: Includes ground fault protection with isolation monitoring and interruption.
• Active Cooling: Variable-speed cooling helps regulate inverter temperatures.
• Fronius Solar.web Support: Enables production monitoring through compatible Fronius communication equipment.
• Weather-Resistant Enclosure: Suitable for indoor and outdoor installation under manufacturer-specified conditions.

Commercial Solar Power Conversion

The Fronius Symo Advanced is designed for commercial photovoltaic installations where efficient energy conversion, electrical compatibility, and dependable operation are essential.

Its transformerless architecture converts solar panel DC electricity into AC electricity for properly interconnected commercial electrical systems. The inverter is suited to projects such as warehouses, manufacturing facilities, office buildings, institutional properties, and other distributed-generation installations.

The Symo Advanced is intended for grid-connected operation and includes anti-islanding protection. It does not independently supply backup electricity during a utility outage.

Integrated SunSpec Rapid Shutdown Communication

A key advantage of the Symo Advanced platform is its built-in SunSpec Power Line Communication technology.

SunSpec PLC enables compatible rapid shutdown devices to receive control signals through the photovoltaic DC conductors, helping reduce external communication hardware and simplify supported system designs.

The inverter's integrated communication capability does not eliminate the need for compatible rapid shutdown devices where the selected system configuration requires them. The complete installation must meet the applicable electrical code and equipment requirements.

UL 3741 PV Hazard-Control System Compatibility

The Fronius Symo Advanced supports specified UL 3741-certified photovoltaic hazard-control system configurations using compatible IronRidge or PanelClaw racking equipment.

These certified configurations can provide an alternative compliance pathway to conventional module-level rapid shutdown arrangements when the complete system meets the manufacturer's approved design and installation requirements.

UL 3741 compliance is determined by the complete certified system, including the required racking, wiring arrangement, inverter placement, and installation conditions. It should not be assumed for every system using the Symo Advanced.

SuperFlex Design and Independent MPPT Tracking

Fronius SuperFlex Design gives commercial solar installers flexibility when configuring photovoltaic arrays with different orientations and operating characteristics.

Independent maximum power point tracking allows compatible PV strings to be optimized separately, helping improve energy production when array sections experience different solar conditions.

This design flexibility makes the Symo Advanced suitable for complex commercial rooftops and installations with multiple array sections.

SnapINverter Technology and Field Serviceability

The Fronius SnapINverter mounting concept simplifies installation and maintenance through a hinged inverter assembly.

The design provides convenient access to electrical connections and serviceable components, helping installers and maintenance technicians work efficiently.

Fronius also supports field-replaceable circuit board components, reducing the need to replace the complete inverter when certain serviceable parts require attention.

Solar Monitoring and Communications

The Symo Advanced supports integration with Fronius Solar.web and compatible third-party monitoring platforms.

When equipped with compatible Fronius Datamanager hardware, the inverter can provide network communications, production data, and monitoring through supported Ethernet, wireless, and Modbus interfaces.

Monitoring accessory inclusion depends on the specific inverter configuration. Confirm whether the purchased unit includes a Datamanager card or requires one separately.

Applications

• Commercial rooftop solar installations
• Industrial and manufacturing facilities
• Warehouses and distribution centers
• Office buildings and commercial properties
• Institutional and municipal solar projects
• Grid-connected commercial photovoltaic systems
• Compatible UL 3741 PV hazard-control installations
• Commercial solar arrays using SunSpec rapid shutdown equipment

Product Specifications

Frequently Asked Questions