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OutBack Battery-Based Inverter 3.6 kW VFXR3648A-01

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Input Voltage DC48
Output Voltage AC120
Solar panel compatibility60/72 - 120/144 cell
  • Grid-Tie Inverters
  • Hybrid Inverters
Rated Efficiency93 %
Dimensions LxWxH13" x 8.25" x 16.25"
Weight61 lbs
ManufacturerOutBack Power Systems
Manufacturer Part #OutBack3.6kWVFXR3648A-01
Operating Temperatures –40 to 60°C
Delivery Time 5-7 business days

About product

OutBack Power VFXR Inverter, 3.6kW, 48VDC, 120 VAC, 60HZ

The OutBack Power VFXR 3.6kW inverters are a good choice for both off-grid and grid-tied systems. They have advanced OutBack features, including Grid Zero, which minimizes grid dependence in areas where incentives are changing and utility sell-back is limited. The ventilated OutBack Power inverters offer more power in high ambient-temperature applications, and more throughput for generator-powered battery charging. 

The inverters have a programmable, auxiliary relay output connection (AUX) that provides 12 VDC output to run cooling or ventilation fans or to operate an external relay for other functions, such as remote generator starting (two-wire).

Up to 10 inverters can be stacked in parallel (120 VAC) or up to 8 inverters can be stacked in a series configuration (120/240 VAC). When stacked, all inverters should be the same model. The OutBack Power FXR 3.6kW inverters should be equipped with the MATE3s controller (or AXS Port) and the Hub10.3.


  • 3,600 Watt backup power
  • 93% peak operating efficiency
  • 60A internal transfer switch
  • 7 different programmable operating modes, with generator assist
  • Remote temperature sensor included
  • Designed for coastal or dusty environments
  • 5-year warranty
  • Dimensions: 13" x 8.25" x 16.25"
  • Weight: 61 lbs

Reviews & Questions

  • Reviews (2)
  • Questions (1)
Just want you to know that the package arrived, everything is good. We’ll start the installation this week. Your calculator really helped with sizing, great tool.
Remy J00
07/14/2021 07:29 pm
Thanks! It’s been a year since me and my family went off-grid: the power lines here aren’t really good and we often sat in the dark for hours. Since we’ve installed solar, these problems have gone away. We also grabbed some batteries from you to have a supply for the night, they are nice.
06/11/2021 09:28 am

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Hello, I already have an inverter, can I buy this one to add to the system?
06/26/2021, 15:30
Good day. We wouldn’t recommend this unless yours is the same. When you stack inverters, they should be the same model.