Xantrex GT 2.8 Solar Grid Tie Inverter

The Xantrex GT 2.8 Solar Grid Tie Inverter is no longer available from Infinigi.

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Xantrex GT 2.8 Solar Grid Tie Inverter

Xantrex GT 2.8 Grid Tie Inverter, 208VAC, 2700W

GT Series Grid Tie Solar Inverters - 60 Hz Models

The Xantrex Grid Tie Solar Inverter (GT Series) is designed to convert photovoltaic (PV) electricity produced by solar modules into utility-grade power that can be used by the home or sold to the local electrical utility. Offering high efficiency (up to 96.0 %), clean aesthetics, high reliability, and a low installed cost, through ease of installation and integrated features, the GT Series is a proven, high-frequency design in a compact enclosure.

The GT Series may be installed as a single inverter, for a single PV array, or in a multiple-inverter configuration for large PV arrays.

Features of the Xantrex GT 2.8 Solar Grid Tie Inverter


  • An NEC compliant, integrated DC/AC disconnect, standard in the GT Series, eliminates the need for external DC (PV) disconnects, and in some jurisdictions, AC disconnects
  • Large heat-sink offers extraordinary heat dispersion without the need for a cooling fan
  • Liquid crystal display (LCD) provides instantaneous information — power level, daily and lifetime energy production, PV array voltage and current, utility voltage and frequency, time online "selling", fault messages, and installer-customized screens
  • LCD vibration sensor allows the tap of a finger to turn backlight on and to cycle through display screens
  • Free PC software for remote monitoring and system troubleshooting available online


  • Flexible module selection and sizing due to wide PV input MPPT tracking voltage range
  • Lightweight and versatile mounting bracket
  • Easy access DC (photovoltaic) and AC (utility) terminal block simplifies wiring
  • Rugged NEMA 3R inverter enclosure allows reliable indoor and outdoor installations


  • Best-in-class efficiency to maximize solar system return on investment
  • Accurate MPPT tracking ensures maximum energy harvest under any conditions
  • FCC Part B compliance provides less external electronic interference


  • 10-year standard warranty
  • Sealed inverter enclosure can be quickly separated from the wiring box allowing DC/AC connections to remain intact in the unlikely event the inverter needs to be serviced
Specifications for the Xantrex GT Solar Grid Tie Inverter
Models GT5.0 GT4.0N GT3.8 GT3.3N GT2.8
Output 240 V 208 V 240 V 208 V 240 V 208 V 240 V 208 V 240 V 208 V
Max. AC power output 5000 W 4500 W 4000 W 3800 W 3800 W 3500 W 3300 W 3100 W 2800 W 2700 W
AC output voltage (nominal) 240 V 208 V 240 V 208 V 240 V 208 V 240 V 208 V 240 V 208 V
AC output voltage range 211-264 Vac
183-229 Vac
AC frequency (nominal) 60 Hz
AC frequency range 59.3 - 60.5 Hz
Startup current 0 Aac
Max. continuous output current 21 A 22 A 16.7 A 18.3 A 15.8 A 16.8 A 13.8 A 14.9 A 11.7 A 13.0 A
Max. output over-current protectionf 30 A 25 A 20 A 25 A 20 A 15 A
Max. utility backfeed current O A
Total harmonic distortion (THD) < 3 %
Power factor > 0.99 % (at rated power), > 0.95 % (full power range)
Utility monitoring, islanding protection UL1741-2005 / IEEE 1547
Output characteristics Current Source
Output current waveform True sine wave
Max. array open-circuit voltage 600 Vdc
MPPT voltage range (CEC & CSA) 240 - 550 Vdc 240 - 480 Vdc 195 - 550 Vdc 200 - 400 Vdc 195 - 550 Vdc
MPPT operating range 235 - 550 Vdc 235 Vdc - 550 Vdc 195 Vdc - 550 Vdc 200 Vdc - 550 Vdc 193 Vdc - 550 Vdc
Max. input current 22.0 Adc 20.0 Adc 18.0 Adc 17.0 Adc 20.8 Adc 19.5 Adc 17.5 Adc 16.5 Adc 15.4 Adc 14.9 Adc
Max. array short-circuit current 24.0 Adc
Reverse-polarity protection Short-circuit diode
Ground-fault protection GF detection, IDIF > 1 A
Max. inverter efficiency 0.959 0.955 0.96 0.957 0.959 0.956 0.959 0.956 0.95 0.946
CEC efficiency 0.955 0.95 0.955 0.95 0.95 0.95 0.955 0.95 0.94 0.935
Night-time power consumption 1 W
Operating temperature range -13°F to +149°F (-25°C to +65°C)
Enclosure type NEMA 3R (outdoor rated)
Inverter weight 58.0 lb (25.8 kg) 58.0 lb (25.8 kg) 58.0 lb (25.8 kg) 49.0 lb (22.2 kg) 49.0 lb (22.2 kg)
Shipping weight 65.0 lb (27.2 kg) 65.0 lb (27.2 kg) 65.0 lb (27.2 kg) 57.0 lb (25.9 kg) 57.0 lb (25.9 kg)
Inverter dimensions (H x W x D) 28 1/2 x 16 x 5 3/4" (724 x 403 x 145 mm)
Shipping dimensions (H x W x D) 34 x 20 1/2 x 10 5/16" (866 x 518 x 262 mm)
Mounting Wall mount (mounting bracket included)
Input and output terminal AC and DC terminals accept wires sizes of #14 to #6 AWG
PV / Utility disconnect Eliminates need for external PV (DC) disconnect. Complies with NEC requirements
Cooling Convection cooled, fan not required
Display Backlit, two-line, 16-character liquid crystal display provides instantaneous power, daily and lifetime energy production, PV array voltage and current, utility voltage and frequency, time online "selling", fault messages, and installer-customizable screens
Communications Integrated RS232 and Xanbus RJ45 communication ports
Wiring box PV, utility, ground, and communications connections. The inverter can be separated from the wiring box.
Warranty 10-year standard
Model name (negative ground) GT5.0-NA-240/208 UL-05 GT4.0-NA-240/208 UL-05 GT3.8-NA-240/208 UL-05 GT3.3-NA-240/208 UL-05 GT2.8-NA-240/208 UL-05
Part number (negative ground) 864-1009 864-1008 864-1032 864-1006 864-1001
  Positive ground inverters are also available
Regulatory Certified to UL1741 1st Edition: 2005 version CSA 107.1 CSA 2 C22.2 No. 107-1-01 general use power supplies

Important note for the Xantrex GT 2.8 Solar Grid Tie Inverter

Shipping Note: Due to the delicate/oversized nature of this product, our online shipping system is not able to accurately determine the cost for shipping. You may proceed with an online order 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 Xantrex GT 2.8 Solar Grid Tie Inverter subject to change without notice. Illustrations and descriptions of the Xantrex GT2.8 do not claim to be complete or exhaustive.

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