Fronius IG 5100 5100W Photovoltaic Inverter

The Fronius IG 5100 5100W Photovoltaic Inverter is no longer available from Infinigi.

Regrettably, we do not have any inventory left nor have access to this product as it is discontinued. Please note that we place this message on products that we have exhausted our options in obtaining. Contacting us will only reaffirm this message.

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Fronius IG 5100 5100W Photovoltaic Inverter

The powerful, reliable and light weight PV inverter series.

Higher yield due to work-sharing is achieved by linking the two power circuits using the MIX™ 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, IG 5100 and IG 4500LV 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.

Features of the Fronius IG 5100 5100W Photovoltaic Inverter:

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

Now you can handle a lot more, thanks to the new Fronius IG 4000, IG 4500-LV (low voltage 208V) and IG 5100 grid tied inverters that output up to 5,100 Watts but still weigh only 42 pounds. The key is that these units use the same proven hardware and software as the 200,000 IG units already operating worldwide. It's like having two inverters in one easy-to-install box, but with the advantages of even greater part-load efficiency and increased longevity due to the new FRONIUS IGs' load-sharing ability.

You also get everything you would expect from the leader in inverter technology:

  • Lightweight: At 42 lbs, these FRONIUS IG inverters are the lightest grid-connected inverters making them easy-to-install.
  • More Energy: MIXTM Concept allows your system to output more energy under partload conditions.
  • Flexible: The wide voltage range of 150-500 V allows you to use different types of modules and system configuration possibilities.
  • Lower Cost: Integrated UL approved DC & AC disconnects which reduce installation time and complexity -often eliminating the need for additional disconnect.
  • LCD Display: User-friendly and comes standard with every FRONIUS IG; tracks more than 20 critical system performance parameters.
  • Plug-and-Play: Expansion slots in the inverter allow you to easily upgrade the inverter with a complete data communication solution.

Get a handle on the world's lightest, easiest-to-install inverters. Put our 60 years of design and manufacturing experience to work on your next job.

Also Known As:
IG 5100

Fronius IG 
IG 4000
IG 5100
IG 4500-LV
DC Input Data   
Recommend PV power3000 - 5000 Wp4000 - 6300 Wp3600 - 5500 Wp
Max. DC input voltage500 V500 V500 V
Operating DC voltage range150 - 450 V150 - 450 V150 - 450 V
Max. usable DC input current   26.1 A 33.2 A  29.3 A 
AC Output Data  
Max. Output power @ 40°C4000 W5100 W   4500 W
Nominal AC output voltage240 V 240 V208 V
Utility AC voltage range212 - 264 V (240 V + 10% / -12%)183 - 229V
Maximum AC current16.7 A21.3 A 21.6 A 
Max. utility back feed current0.0 A    0.0 A 0.0 A 
Operating frequency range59.3 - 60.5 Hz (60 Hz nom) 
Total Harmonic Distortion THD<5%
Power Factor (cos phi)1
General Data   
Max. Efficiency95.2%95.2%94.4%
Consumption in stand-by< 0.15 W (night)   
Consumption during operation15 W
EnclosureNEMA 3R
Size (l x w x h)28.4 x 16.5 x 8.8 inches (720 x 418 x 223 mm)
Weight42 lbs (19 kg)
Ambient Temperature Range
 -5 to 122  °F (-20 to +50 °C) 
Coolingcontrolled forced ventilation
Integrated AC and DC disconnectsstandard UL approved DC  & AC disconnects
Ground fault protectionInternal GFDI, in accordance with UL 1741
DC reverse polarityInternal diode
Islanding protectionInternal, in accordance with UL 1741, IEEE 1547
Over temperatureOutput power derating
Surge protectionInternadl DC & AC protection to 6 kV
SafetyUL 1741
EMIFCC Part 15; Class A & B
Anti-islandinig protectionUL 1741, IEEE 1547
Ground fault detector and interruptorCompliant with NEC Art. 690 requirements, UL 1741
Max. AC over current protectionTwo-pole, 30 A circuit breaker
AC wire sizingUse maximum AWG 6 194  °F (90  °C) copper wire
DC wire sizingUse maximum AWG 8 194  °F (90  °C) copper wire
AC disconnect32 A
DC disconnect40 A
Warranty10 year Premium Warranty is standard

Important note for the Fronius IG 5100 5100W Photovoltaic Inverter

Shipping Note: Due to the oversized nature of this product, freight is the only shipping method available. You may proceed with an order online and we will contact you prior shipping this item or please Contact Us and we will work to get you the exact shipping cost.
Note: Specifications and pricing of the Fronius IG 5100 5100W Photovoltaic Inverter subject to change without notice. Illustrations and descriptions of the Fronius IG-5100 do not claim to be complete or exhaustive.

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