The powerful, reliable and light weight PV inverter.
Higher yield due to work-sharing is achieved by linking the two power circuits using the MIXTM concept, our optimized master-slave system. In the part-load range only one of the two power stage sets operates, while both work together at full-load. The advantages are noticeable, increase in yield with a simultaneous reduction in operating hours. The Fronius IG 4000 inverters deliver more power output for higher performance (commercial) installations, yet only weigh 42 lbs making them the lightest grid connected inverters resulting in installation cost savings.
Integrated DC/AC disconnects reduce installation time and cost.
Every FRONIUS IG comes standard with integrated DC and AC disconnects. Both DC and AC electrical connections are made in the convenient installer accessible wiring compartment. We've pre-wired the DC breaker to a heavy-duty terminal block that accepts up to eight #8 AWG conductors (four input strings).
Large LCD display standard on all models. Each FRONIUS IG comes 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
- Total CO2 Emissions Avoided in lb
- Peak DC voltage
- Peak AC Power
- Min./max. AC voltage
- And many more...
High efficiency with intelligent thermal management maximizes energy yield. The Fronius IG combines several key design elements to insure operation at a high efficiency under all operating conditions.
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 high 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.
A wide input voltage range permits the use of modules of every power size and voltage. You can easily 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 -over +60,000 units in operation throughout the world. 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.
FRONIUS "LocalNet"
FRONIUS "LocalNet" is an in-house developed data communication system, which is noted for flexibility and stability. LocalNet devices connect to one another via the RS 485 interface using standard Cat5 networking cables. Once connected it is possible to transfer large volumes of data across long distances and all LocalNet devices can be conveniently accessed and managed from a PC computer.
