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Fronius Inverters

Fronius Inverters for Home and Commercial Grid-Tie Solar Systems

Fronius inverter

Fronius IG PlusThe real innovation in Fronius inverters 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

IG Plus 3.0 UNI-contact us for order

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

IG Plus 3.8 UNI-contact us for order

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

IG Plus 11.4-3 Delta -contact us for order

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

IG Plus 12.0-3
WYE277-contact us for order

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

IG-2500 LV-contact us for order

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

IG-4500 LV-contact us for order

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

IG-5100-contact us for order

A small transformer with high output and efficiency

inverter transformerThe 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.

Fronius IG Module-ManagerOutput 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.

Fronius IG graphic displayThe 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

AC and DC disconnectsEach 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 solar inverter manufactorer
Fronius IG Grid-Tie Inverters
All IG inverters include an information display
Solar Electric Supply is an authorized Fronius Dealer


Call toll-free (877) 297-0014 for
Fronius accessories, more information or to order Fronius inverters.