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Fronius Symo Advanced 15kW Three-Phase Grid-Tied Inverter, 480V – 4,210,092,801

Fronius Symo Advanced 15kW Three-Phase Grid-Tied Inverter, 480V – 4,210,092,801

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Fronius Symo Advanced 15kW Three-Phase Grid-Tied Inverter, 480V – 4,210,092,801

Fronius Symo Advanced 15kW Three-Phase Grid-Tied Inverter, 480V – 4,210,092,801

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MPN No: 4,210,092,801
Regular price $3,999.00 -30% $2,798

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Regular price $3,999.00 -30% $2,798

Fronius Symo Advanced 15kW Three-Phase Grid-Tied Solar Inverter – 480V

 String Inverter with Dual MPPT, SunSpec Rapid Shutdown and NEMA 4X Enclosure

15kW AC Output | 480V Three-Phase | Dual MPPT | 1000V DC Maximum
The Fronius Symo Advanced 15.0-3 480 is a high-efficiency, transformerless grid-tied solar inverter engineered for commercial and industrial photovoltaic installations. Featuring two independent MPPT trackers, integrated SunSpec rapid shutdown communication, advanced grid management capabilities, and the Fronius SnapINverter mounting system, it provides reliable solar power conversion with simplified installation and serviceability.

Designed for 480V three-phase electrical systems, the Symo Advanced 15kW inverter combines flexible PV string configuration, integrated monitoring, and a durable NEMA 4X enclosure for indoor and outdoor installations.

Product Highlights

  • 15kW AC output: 14,995W nominal three-phase grid-tied power.
  • 480V three-phase: Designed for compatible commercial electrical services.
  • Dual MPPT: Two independent maximum power point trackers.
  • 350–800V MPPT range: Flexible solar string design.
  • 1000V maximum DC input: Supports high-voltage PV arrays.
  • Up to 98% efficiency: Efficient conversion of solar DC power into AC electricity.
  • Integrated SunSpec PLC: Communication for compatible module-level rapid shutdown devices.
  • SnapINverter mounting: Simplifies installation and field servicing.
  • Integrated monitoring: Built-in Fronius data communication capabilities.
  • Smart Grid Ready: Supports advanced grid management functions.
  • NEMA 4X enclosure: Designed for indoor and outdoor installations.
  • Active cooling: Variable-speed fan system for temperature management.
  • Transformerless design: Compact and efficient inverter architecture.
  • Field-serviceable: Replaceable PC boards help simplify maintenance.

Manufacturer: Fronius

Series: Symo Advanced

Model: Symo Advanced 15.0-3 480

Manufacturer Part Number: 4,210,092,801

Inverter Type: Three-Phase Grid-Tied String Inverter


15kW Three-Phase Solar Power for Commercial Installations

The Fronius Symo Advanced 15.0-3 480 converts DC electricity generated by photovoltaic modules into three-phase AC power for compatible 480V electrical systems.

With a nominal output of 14,995W, the inverter is well suited for commercial rooftops, industrial buildings, agricultural properties, and other facilities using three-phase electrical service.

Its transformerless architecture and high conversion efficiency support reliable daily energy production, while integrated grid-management functions help meet the needs of modern commercial solar installations.


Dual MPPT for Flexible Solar Array Design

The Symo Advanced 15kW features two independent maximum power point trackers that continuously optimize solar energy harvesting.

Dual MPPT operation provides flexibility when designing arrays with different orientations, roof sections, or electrical configurations.

PV Input Specifications

  • Number of MPPT trackers: 2
  • MPPT voltage range: 350–800V DC
  • DC operating voltage range: 200–1000V DC
  • Maximum DC input voltage: 1000V
  • Maximum input current, MPPT 1: 33A
  • Maximum input current, MPPT 2: 25A
  • Maximum combined usable input current: 51A
  • Maximum PV short-circuit current: 49.5A / 37.5A

Integrated SunSpec Rapid Shutdown Communication

The Fronius Symo Advanced series incorporates power line communication (PLC) technology for SunSpec rapid shutdown applications.

The integrated transmitter communicates with compatible SunSpec rapid shutdown receivers, supporting module-level rapid shutdown system designs without requiring a separate external PLC transmitter.

Rapid Shutdown Features

  • Integrated SunSpec PLC transmitter.
  • Supports compatible module-level rapid shutdown receivers.
  • Reduces additional external transmitter equipment.
  • Designed for commercial rooftop solar applications.
  • Supports appropriate rapid shutdown system configurations.

Fronius SnapINverter Mounting System

The Fronius SnapINverter design simplifies inverter installation, servicing, and component replacement.

The inverter uses a mounting bracket and hinged power-stage assembly, allowing installers to access internal components without completely removing the mounting structure.

SnapINverter Benefits

  • Simplified wall mounting and installation.
  • Convenient access for servicing.
  • Replaceable internal PC boards.
  • Reduced maintenance complexity.
  • Suitable for indoor and outdoor installations.

Integrated Monitoring and Smart Grid Capabilities

The Symo Advanced includes Fronius data communication technology for system monitoring and performance analysis.

Compatible Fronius monitoring solutions allow system owners and installers to review energy production, monitor inverter operation, and access performance information.

Monitoring Benefits

  • Solar production monitoring.
  • System performance visibility.
  • Inverter operating status.
  • Diagnostic and service information.
  • Integration with compatible Fronius monitoring platforms.

High-Efficiency Solar Power Conversion

The Fronius Symo Advanced 15.0-3 480 uses transformerless inverter technology to efficiently convert solar DC electricity into usable three-phase AC power.

Performance Highlights

  • Nominal AC power: 14,995W
  • Maximum efficiency: Approximately 98%
  • CEC weighted efficiency: 97%
  • Nominal frequency: 60Hz
  • Maximum continuous AC output current: 18A at 480V
  • Total harmonic distortion: Less than 1.5%

Durable NEMA 4X Enclosure

The Symo Advanced inverter features a NEMA 4X-rated enclosure suitable for indoor and outdoor installations.

Its corrosion-resistant enclosure and active cooling system support dependable performance in demanding commercial environments.

Environmental Features

  • Enclosure rating: NEMA 4X
  • Operating temperature: -40°F to +140°F (-40°C to +60°C)
  • Cooling: Variable-speed fan
  • Installation: Indoor or outdoor
  • Humidity: 0–100% non-condensing
  • Nighttime consumption: Less than 1W

Ideal Applications

  • Commercial rooftop solar installations
  • Industrial photovoltaic systems
  • Agricultural and farm solar arrays
  • Commercial ground-mounted solar systems
  • 480V three-phase electrical services
  • Grid-tied solar installations
  • Commercial solar system expansions
  • Projects requiring integrated rapid shutdown communication

Product Specifications

Specification Details
Manufacturer Fronius
Series Symo Advanced
Model 15.0-3 480
MPN 4,210,092,801
Product Type Three-Phase Grid-Tied String Inverter
Nominal AC Output Power 14,995W
Rated Apparent Power 14,995VA
AC Output Voltage 480V Three-Phase
AC Output Configuration 277/480V, 3-Phase + Neutral + PE
Nominal AC Frequency 60Hz
Maximum Continuous AC Current 18A at 480V
Recommended Minimum AC OCPD 25A at 480V
Recommended PV Array Power 12–19.5kW DC
Number of MPPT 2
MPPT Voltage Range 350–800V DC
DC Operating Voltage Range 200–1000V DC
Maximum DC Input Voltage 1000V DC
Maximum Input Current, MPPT 1 33A
Maximum Input Current, MPPT 2 25A
Maximum Combined Input Current 51A
Maximum PV Isc, MPPT 1 49.5A
Maximum PV Isc, MPPT 2 37.5A
Maximum Efficiency 98%
CEC Efficiency 97%
Total Harmonic Distortion <1.5%
Inverter Topology Transformerless
Rapid Shutdown Communication Integrated SunSpec PLC Transmitter
Mounting System Fronius SnapINverter
Monitoring Integrated Fronius Data Communication
Cooling Variable-Speed Fan
Enclosure Rating NEMA 4X
Installation Location Indoor / Outdoor
Operating Temperature -40°F to +140°F
Permitted Humidity 0–100% Non-Condensing
Nighttime Power Consumption <1W
Dimensions 20.1 × 28.5 × 8.9 in (W × H × D)
Battery Charging No
Standalone Backup Power No

Solar Panel Compatibility and PV Array Sizing

The Fronius Symo Advanced 15kW can be paired with compatible solar modules and string configurations that meet its DC input specifications.

Fronius publishes a recommended PV array range of approximately 12–19.5kW DC for the 15.0-3 480 model.

Key Design Considerations

  • Solar string operating voltage within the 350–800V MPPT range.
  • Maximum DC open-circuit voltage of 1000V.
  • MPPT input current limits of 33A and 25A.
  • Appropriate string sizing for local temperatures.
  • Compatible rapid shutdown equipment where required.
  • 480V three-phase AC electrical service.

Frequently Asked Questions

What is the Fronius Symo Advanced 15.0-3 480?

It is a 15kW-class, three-phase grid-tied string inverter designed to convert solar DC electricity into AC power for compatible 480V commercial electrical systems.

Is this a commercial solar inverter?

Yes. The Symo Advanced 15.0-3 480 is designed primarily for commercial, industrial, and other three-phase solar installations.

What is the AC output power?

The inverter has a nominal AC output rating of 14,995W, commonly marketed as 15kW.

Does this inverter require 480V three-phase power?

It is designed for compatible 480V three-phase electrical systems, including a 277/480V three-phase connection configuration.

Can this inverter be used on a standard 120/240V residential service?

No. This model is intended for compatible three-phase electrical systems rather than standard residential split-phase service.

How many MPPT trackers does it have?

The Symo Advanced 15kW includes two independent MPPT trackers.

What is the MPPT voltage range?

The inverter has an MPPT operating range of 350–800V DC.

What is the maximum DC input voltage?

The maximum DC input voltage is 1000V.

How large of a solar array can I connect?

Fronius publishes a recommended solar array range of approximately 12–19.5kW DC for the 15.0-3 480 model. Final array sizing depends on module electrical characteristics and installation conditions.

Does this inverter include rapid shutdown communication?

Yes. The Symo Advanced incorporates an integrated SunSpec PLC transmitter for communication with compatible rapid shutdown receivers.

Does it require a separate rapid shutdown transmitter?

The integrated SunSpec PLC transmitter can eliminate the need for a separate external transmitter in compatible rapid shutdown system configurations.

Can the inverter be installed outdoors?

Yes. The inverter features a NEMA 4X-rated enclosure designed for indoor and outdoor installations.

Does the Fronius Symo Advanced support monitoring?

Yes. It includes integrated Fronius data communication capabilities for compatible solar monitoring platforms.

What is the inverter's maximum efficiency?

The Symo Advanced 15.0-3 480 has a maximum efficiency of approximately 98% and a CEC weighted efficiency of 97%.

What is the SnapINverter mounting system?

SnapINverter is Fronius's mounting and service design that simplifies installation and provides convenient access to inverter components.

Is this a hybrid inverter?

No. The Symo Advanced 15.0-3 480 is a grid-tied string inverter and does not provide integrated battery charging or standalone backup power.

Will this inverter provide power during a utility outage?

No. As a conventional grid-tied inverter, it disconnects from the utility during an outage and does not independently provide backup power.

What is the maximum continuous AC output current?

The maximum continuous output current is 18A at 480V.

What is the operating temperature range?

The inverter is designed for ambient temperatures from -40°F to +140°F (-40°C to +60°C), with temperature-dependent power derating.

What applications is this inverter best suited for?

The Fronius Symo Advanced 15kW is well suited for commercial rooftops, industrial solar installations, agricultural buildings, and compatible 480V three-phase grid-tied solar systems.