Design a PV System with the Fronius IGPlus3.8-1UNI

With SolarDesignTool you can design a PV system and panel layout in minutes! Handles multiple inverter technologies, performs climate-specific electrical calculations, and more!

This page contains information about the Fronius IGPlus3.8-1UNI inverter. To compare this to other PV inverters, click here.

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DC Electrical Properties

  • Maximum Input Current 17.8A
  • Start Voltage 255V
  • Max DC Input Voltage 600V
  • Peak Power Tracking Voltage 230V - 500V
  • Number of MPPTs 1
  • Operating Voltage Range 230V - 600V
  • Polarity of Ground Either
  • DC Disconnect Yes
  • Number of Modules Per Inverter 6
  • Includes Fuses for String Inputs No
  • Max Rating for String Fuses 20A
  • Rating of Included String Fuses not applicable
  • DC Input Wire Gauge Range 14 AWG – 6 AWG
  • Integrated DC Arc Fault Protection Yes

AC Electrical Properties

  • Rated Power Output 3800W
  • Compatible Utility Voltages 208V, 240V, 277V
  • Peak Efficiency 96.2%
  • Weighted Efficiency 95% (208V)
    95.5% (240V)
    95.5% (277V)
  • Maximum Output Current 18.3A (208V)
    15.8A (240V)
    13.7A (277V)
  • Max OCPD rating 30A (208V)
    30A (240V)
    25A (277V)
  • AC Disconnect No
  • AC Input Wire Gauge Range 14 AWG – 4 AWG
  • Sleep Consumption 1W
  • Standby Consumption 8W

Mechanical Characteristics

  • Height 24.8in (630mm)
  • Width 17.1in (433mm)
  • Depth 9.6in (244mm)
  • Weight 55lb (24.9kg)
  • CSI-Approved Built-in Meter Yes
  • NEMA Enclosure Rating NEMA 3R
  • Cooling Method Forced Air

Environmental Constraints

  • Ambient Temperature Range -4°F - 122°F (-20°C - 50°C)

Warranties and Compliances

  • Compliances UL 1741, IEEE 1547, UL 1699B
  • CSI Listed Yes

This web page is not the manufacturer's official data sheet and is not endorsed by the manufacturer in any way. For an official data sheet, please go to Fronius's website.