ProductsMains-connected invertersFronius IGFronius IG Central Inverters 

Fronius IG Central Inverters

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The own solar powerstation

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.

 

Technical Data 
Equipment features 

Technical Data

Fronius IG 
300 
400 
500 
Input Data 
    
MPP voltage range  210 - 420 V 210 - 420 V  210 - 420 V 
Max. input voltage (at 1000 W/m²; - 10° C)  530 V 530 V  530 V 
Recommended PV plant output  24 - 31 kWp 32 - 42 kWp  40 - 52 kWp 
Max. input current  123 A 164 A  205 A 
Output Data 
    
Nominal output  24 kW 32 kW  40 kW 
Max. power output 24 kW 32 kW  40 kW 
Max. efficiency  94,3 % 94,3 %  94,3 % 
Euro efficiency  93,3 % 93,4 %  93,5 % 
Mains voltage / frequency  3NPE~400 V / 50 Hz
Distortion factor  < 5 %
Power factor  1
Power consumption at night  9 W
General Data 
    

Size l x w x h;
IP 20 incl. socket (200 mm)
up to 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
Weight   225 kg 254 kg  265 kg 
Cooling controlled forced-air cooling
Protection class (housing) IP 20 (IP 43)
Ambient temperature range  - 20° C to 50° C
Permissible humidity  0 to 95 %
Protective Devices 
    
DC insulation measurement  warning when Riso < 500 k Ohm
Behaviour on DC overload  displacement of operating point

Equipment features

  • Fronius LC-Display
  • HF-Transformer
  • Module-Manager
  • MIX-Concept

We recommend to use a Fronius String Control for monitoring the high number of module strings in a pv-system with Fronius IG Central inverters.

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