Fronius IG Central Inverters    



The Fronius IG central inverters are suitable for pv systems starting with an AC output power of 24 kW and work with a completely new system configuration. There is not only one power stack converting the electricity but also 9, 12 to 15 printed circuit boards that share the work, depending on the output class.
The reason for this is that it is well-known that the energy yield increases in part-load areas if smaller power stacks are operated at higher capacity. Therefore, every Fronius IG central inverter works with several smaller power stacks that switch on or off completely automatically depending on irradiance so that they can always deliver maximum power.








Fronius IG 300 / 400 / 500


These central inverters convert solar energy into high-quality electricity on a large scale. This Fronius development, just like all others, has also been based on four central parameters:

  • Optimum user-friendliness
  • Maximum efficiency
  • Unconditional reliability
  • Professional system monitoring


The new series not only successfully integrates these features but also demonstrates new, amazing characteristics. The intelligent inverter concept and the built-in features make the series lighter, smaller, easier to install and easier than ever to maintain.

 

INPUT DATAFronius IG 300Fronius IG 400Fronius IG 500
MPP voltage range210 - 420 V210 - 420 V210 - 420 V
Max. input voltage530 V530 V530 V
Recommended PV plant output24 - 31 kWp32 - 42 kWp40 - 52 kWp
Max. input current123 A164 A205 A
OUTPUT DATA


Nominal output24 kW32 kW40 kW
Max. power output24 kW32 kW40 kW
Max. efficiency94.3 %94.3 %94.3 %
Euro efficiency93.3 %93.4 %93.5 %
Mains voltage / frequency3NPE~400 V / 50 Hz
Distortion factor< 5 %
Power factor1
Power consumption at night9 W
GENERAL DATA


Size (l x w x h) IP 20 incl. socket (200 mm)
up to top edge of exhaust pipe		600 x 600 x 2557 mm
Size (l x w x h) IP 43 incl. socket (200 mm)1112.5 x 600 x 2444.5 mm
Weight225 kg245 kg265 kg
Coolingcontrolled forced-air cooling
Protection class (housing)IP 20 (IP 43)
Ambient temperature range-20°C to +50°C
Permissible humidity0 to 95 %
PROTECTIVE DEVICES


DC insulation measurementwarning when Riso < 500k Ohm
Behaviour on DC overloaddisplacement of operating point

                                                                                                                                                                                             



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