Out of stock

OutBack Inverter 50A GS4048A-01

All OutBack Power Systems products


Input Voltage DC48
Output Voltage AC120/240 VAC
  • Grid-Tie Inverters
  • Hybrid Inverters
Rated Efficiency96%
Dimensions LxWxH28" x 16" x 8.7"
Weight82 lbs
ManufacturerOutBack Power Systems
Manufacturer Part #GS4048A-01
Operating Temperatures –20 to 50°C
Delivery Time 5-7 business days

About product

OutBack Power Radian Grid-Tie Hybrid Inverter, 4.0kW 48VDC, 120/240 VAC, 60HZ

OutBack Power Radian inverter can be used as a grid-tie or an off-grid inverter. There are two separate AC inputs: for the bi-directional grid connection and for an optional backup generator. The inverter is well suited for both commercial and residential applications as it can support large dynamic load variations and surge loads.

Each Radian inverter requires dual 2/0 AWG battery cables (two positive and two negative) for connection to the battery bank. They have an adjustable input-voltage range so they are compatible with most battery technologies. Up to nine units can be combined for three-phase operation and ten in parallel, single-phase operation. A MATE3s, HUB10.3, and an appropriate GSLC are needed to complete a Radian system. Not rated for outdoor use.


  • 4,000 Watt backup power
  • Built-in 50 A transfer switch at 120/240 VAC
  • 96% peak operating efficiency
  • 175 Ah minimum recommended battery size
  • 7 different programmable operating modes, with generator assist
  • Remote temperature sensor included
  • 5-year warranty
  • Dimensions: 28" x 16" x 8.7"
  • Weight: 82 lbs.

Reviews & Questions

  • Reviews (3)
  • Questions (3)
Bought this model four month ago. Before the purchase I discussed with my electric supplier the possibility of grid connection and net metering. The procedure was very simple and my installer also helped a lot with little details. Now I sell into the grid basically half of what I generate. Very happy with myself and my purchase, so thank you
07/03/2021 06:24 pm
A very good inverter from a reliable company. My friend has the same model so I decided to pick it. The delivery was fast, nothing was broken so you have my thanks and utmost respect. :)
06/21/2021 09:53 am
A strong reliable inverter. In our cause it handles even a little more than expected, since our system is 4.2 kW in size or around that. I watch my system like a hawk and check everything: gotta hand it to him, it has very good efficiency. Overall, a solid product, would definitely recommend it.
05/12/2021 02:50 pm

Leave a review

What if my system is bigger than the capacity of this inverter? will this one still work?
07/05/2021, 14:58
If your system generates much more energy than the inverter is rated for, clipping may start. Basically, you will just encounter power losses. Obviously, it’s not good for an inverter either.
Do I have to get batteries for it?
Ryan T00
06/09/2021, 09:57
No, having a battery bank isn’t necessary.
where should i put it? will the exterior wall of the house do?
05/10/2021, 14:55
Good day. While sometimes exterior walls can be an option, this inverter isn’t rated for outdoor use. The best option would be a dark, dry, cold place, like a garage.