The real innovation in the FRONIUS IG lies in its novel concept. This inverter series is designed in such a way that the connection area and the power stage (the heart of the system), are completely separated from each other.
Fronius IG inverters have been set up to operate within the same input voltage range of 150 – 450V, 500V Peak. Fronius IG Plus inverters have been set up to operate at 230-500V DC input voltage, 600V peak. Up to two power stages can be integrated in the housing unit of each Fronius IG.
Reliable, rugged and built to last
The IG series are built in an ISO 9001 facility. Fronius has over 55 years experience building products that can withstand the test of time in harsh environments and heavy use. That know-how is built into every IG inverter. Built to last by a company that has been around long enough to know.
| Grid Tie Inverter | Description / Rating | Price |
| IG Plus 3.0 UNI 3450W Peak DC Input Max. Efficiency 96.2% 208-277V AC Output |
230-500V DC input voltage 600V peak DC input voltage 2500-3450W input DC 3000W Peak AC Output IG Plus 3.0 UNI Information |
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| IG Plus 3.8 UNI 4400W Peak DC Input Max. Efficiency 96.2% 208-277V AC Output |
230-500V DC input voltage 600V peak DC input voltage 3200-4400W input DC 3800W Peak AC Output IG Plus 3.8 UNI Information |
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| IG Plus 5.0 UNI 5750W Peak DC Input Max. Efficiency 96.2% 208-277V AC Output |
230-500V DC input voltage 600V peak DC input voltage 4250-5750W input DC 5000W Peak AC Output IG Plus 5.0 UNI Information |
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| IG Plus 6.0 UNI 6900W Peak DC Input Max. Efficiency 96.2% 208-277V AC Output |
230-500V DC input voltage 600V peak DC input voltage 5100-6900W input DC 6000W Peak AC Output IG Plus 6.0 UNI Information |
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| IG Plus 7.5 UNI 8600W Peak DC Input Max. Efficiency 96.2% 208-277V AC Output |
230-500V DC input voltage 600V peak DC input voltage 6350-8600W input DC 7500W Peak AC Output IG Plus 7.5 UNI Information |
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| IG Plus 10.0 UNI 11500W Peak DC Input Max. Efficiency 96.2% 208-277V AC Output |
230-500V DC input voltage 600V peak DC input voltage 8500-11500W input DC 10000W Peak AC Output IG Plus 10.0 UNI Information |
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| IG Plus 11.4 UNI 13100W Peak DC Input Max. Efficiency 96.2% 208-277V AC Output |
230-500V DC input voltage 600V peak DC input voltage 9700-13100W input DC 11400W Peak AC Output IG Plus 11.4 UNI Information |
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| IG Plus 11.4-3 Delta 13100W Peak DC Input Max. Efficiency 96.2% 208/240V AC Output |
230-500V DC input voltage 600V peak DC input voltage 9700-13100W input DC 11400W Peak AC Output IG Plus 11.4-3 Delta Information |
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| IG Plus 12.0-3 WYE277 13800W Peak DC Input Max. Efficiency 96.2% 277V AC Output |
230-500V DC input voltage 600V peak DC input voltage 10200-13800W input DC 12000W Peak AC Output IG Plus 12.0-3 WYE277 Information |
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| IG-2000 2500W Peak DC Input Max. Efficiency 94.4% 240V AC Output |
150-450V DC input voltage 500V peak DC input voltage 1500-2500W input DC 2000W Peak AC Output @ 240V IG-2000 specs in PDF format |
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| IG-2500 LV 3000W Peak DC Input Max. Efficiency 94.4% 208V AC Output |
150-450V DC input voltage 500V peak DC input voltage 1800-3000W input DC 2350W Peak AC Output @ 208V IG-2500 specs in PDF format |
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| IG-3000 3500W Peak DC Input Max. Efficiency 94.4% 240V AC Output |
150-450V DC input voltage 500V peak DC input voltage 2500-3500W input DC 2700W Peak AC Output @ 240V IG-3000 specs in PDF format |
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| IG-4000 5000W Peak DC Input Max. Efficiency 95.2% 240V AC Output |
150-450V DC input voltage 500V peak DC input voltage 3000-5000W input DC 4000W Peak AC Output @ 240V IG-4000 specs in PDF format |
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| IG-4500 LV 4500W Peak DC Input Max. Efficiency 94.4% 208V AC Output |
150-450V DC input voltage 500V peak DC input voltage 3600-5500W input DC 4500W Peak AC Output @ 208V IG-4500 specs in PDF format |
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| IG-5100 5100W Peak DC Input Max. Efficiency 95.2% 240V AC Output |
150-450V DC input voltage 500V peak DC input voltage 4000-6300W input DC 5100W Peak AC Output @ 240V IG-5100 specs in PDF format |
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A small transformer with high output and efficiency
The power stage is based on the use of high frequency (HF) technology. The HF transformer is extremely compact, yet capable of transforming considerable power. The innovative phase shift process used in the Fronius IG series also minimizes switching losses thereby ensuring a high degree of both efficiency and flexibility in terms of the unit's capacity.
The unique Phase-Shift process minimizes switching losses and is able to generate ultra-high conversion efficiencies of 94.4%.
Regulated forced ventilation
Fronius IG grid-tie inverters are equipped with a top-of-the-range cooling fan making it possible to use an extremely small heat sink which is mounted directly on the board.
Fronius' 20 years of experience with forced ventilation brings a number of advantages.
Simple maintenance, reduced levels of so-called grey energy and a notable reduction in weight mean savings both for the environment and your wallet. The cooling fan is only switched on when needed thereby not using any energy while the temperature of the power stage semiconductors is low. This configuration also extends the life of the cooling fan significantly.
Output vs. voltage, the Fronius IG Module-Manager
Whatever solar panel array you decide on, whether monocrystalline, multicrystalline or thin-film, the Fronius IG inverter always fits perfectly in the system-concept. The "Module-Manager" is software integrated into each Fronius IG inverter that optimizes the earnings of your system in each and every situation. The Module-Manager does a first class job and leads to optimal results.
The higher current produced by many high-output solar cells are no problem for a Fronius IG inverter. This is because of the wide input voltage range of Fronius inverters - from 150 to 450V. Because of this wide input voltage range you can choose from virtually any solar panel array on the market. This feature also ensures the optimal use of the roof space without limiting architectural options.
The Fronius IG graphic display
The built-in display on a Fronius IG is your personal communication with your entire solar grid-tie system. System information can be read directly on the inverter. The most relevant parameters can be read immediately so that you always know what is going on. The simple display navigation makes getting this information very easy!
Mounting & Connection
The Fronius IG inverter has several features that make installation extremely simple and convenient.
Mounting Frame - practical and simple
Not only does the the light weight of your Fronius IG make the installation easy and convenient, every inverter comes with an additional mounting frame. After installing this frame on the wall you can easily hang up your inverter.
AC and DC disconnects built-in
Each Fronius IG comes with built-in AC and DC disconnects and in many cases eliminate the need for external breakers. This reduces installation time and total system costs. With its lightweight and compact design, this inverter series can be easily lifted on or off of the bracket. Standard knockouts and terminal strips save time and expense when making electrical connections.
As soon as a Fronius IG inverter has been installed, it is immediately ready to do its job. All relevant safety settings have been pre-programmed. Just switch on your Fronius IG inverter and watch it work.
 Fronius IG Grid-Tie Inverters All IG inverters include an information display |
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