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Fronius Inverter (Sm)
Fronius Inverter (Med)
Fronius Inverter (Lg)
Fronius Inverter (V-Lg)

FRONIUS IG Grid-Tied Inverters

The Fronius IG 2000 through to the 12.0 kW 12.0-3WYE277 photovoltaic inverters utilize high frequency, phase-shift architecture to deliver higher reliability and performance while reducing size, weight and installation cost.


  •  Mounting Bracket makes installation simple and fast

  •  Integrated DC/AC disconnects reduce installation time and cost Standard with integrated DC and AC disconnects. Both DC and AC electrical connections are made in the convenient installer accessible wiring compartment. Pre-wired the DC breaker to a heavy-duty terminal block that accepts up to eight #8 AWG conductors.  DC/AC disconnects are UL rated and meet the technical requirements of the National Electric Code for PV systems. See our FAQ section for further information.

  • Large LCD display standard with an integrated LCD display to allow users easy access to a wealth of system information, including:

  • Instantaneous AC Power to the Grid

  • Total Energy Savings for Day/Since Start Date in

  • Total CO2 Emissions Avoided in lb

  • Peak DC voltage

  • Peak AC Power

  • Min./max. AC voltage

  • And many more…

It is easy to navigate, with large clear digits, and backlight for easy reading (with automatic shutdown to conserve power).  additional functionality is available when you add the DatCom data monitoring system with weather station sensors.

The LCD is also used to display three-digit service codes relating to non optimal operating , both momentary and those needing correction.  Using the displayed service codes saves time and effort in troubleshooting, and allows installers and dealers to resolve many issues remotely.

Optional DatCom data logging and remote sensors can be added to any system for more sophisticated and almost limitless data analysis using Fronius IG.access.

  • High efficiency with intelligent thermal management maximizes energy yield

MPPT accuracy of 99.9%- Regardless of which PV modules you use; crystalline, poly or thin film, the FRONIUS IG Module Manager tm software locks onto the array’s maximum power point to optimize the energy output from your array.  Accurate MPP tracking and efficiency is maintained throughout the voltage and power range.

Active Cooling – To operate at full power over a wide range of temperatures, inverters components must be kept cool. Fronius, which perfected Active Cooling in HF welders, employs the same Active Cooling technology in its IG inverters. FRONIUS IG inverters operate reliably at full power, without de-rating, over a wider range of temperatures than competing inverters.

Phase Shift Technology- Unique phase-shift design maximizes switching efficiency. Switching losses are minimized through an innovative process, allowing an even higher efficiency to be maintained.

  • Wide Input Voltage Range allows greater system design flexibility and permits the use of modules of every power size and voltage. You can fine-tune your system with different wattage modules and string configurations. The voltage window for the entire IG series is 150-450Vdc.

Reliable-Rugged-Built to Last -

FRONIUS IG inverters are built in an ISO 9001 facility. As a world leading manufacturer of HF welding equipment Fronius builds products that can withstand the test of time in harsh environments and heavy use. That know- how is built into each and every IG inverter. Built to last by a company that has been around long enough to know.

  • NEMA 3R enclosure and mounting bracket- made in house from aluminum

  • Stainless steel fasteners throughout

  • Insect screening in ventilation areas

  • Conformal coating of all PC boards

  • Galvanic separation of AC and DC by design

  • ABB top quality DC and AC integrated disconnects


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Last modified: January 12, 2023