Outback Power Radian GS3548E > 3500 Watt 48V Grid Interactive Inverter/Charger

Outback Power Radian GS3548E > 3500 Watt 48V Grid Interactive Inverter/Charger

Manufacturer Part Number: GS3548E

Grid-Interactive Inverter

The Radian Series GS7048E and GS3548E Grid/Hybrid™ (full-flexibility grid-interactive/off-grid) Inverter/Charger is engineered toward one goal: making system design and installation easier and faster in grid-interactive and comprehensive off-grid applications. Both the GS7048E and the GS3548E feature dual AC inputs for grid/generator flexibility with no external switching required, unparalleled surge capability and operational stability,easy field upgradeability and stacking capability for large system scaling, simplified system commissioning through a powerful, easy-to-use configuration wizard, and multi-mode operational flexibility.

In addition, both models have new Advanced Battery Charging (ABC) profile options to support leading-edge battery technologies such as Lithium-Ion and others, and enhanced diagnostics for improved performance. And both incorporate OutBack’s GridZero technology, a superior level of intelligence in energy management for self-generation and self-consumption programs,providing precise balancing between using stored energy, solar and utility power, blending-in the latter to overcome surges and load spikes when needed. GridZero operation makes it possible for a smaller inverter and battery system to perform like a much larger one when required, putting stored and renewable energy sources to work and minimizing grid dependence.

As truly global products, the Radian Series GS7048E and GS3548E inverter/chargers offer selectable voltage and frequency for use in a wide variety of locations, and innovative grid interface protection, which allows precision programming and control to accommodate shifting utility requirements in areas with high PV penetration or specific interconnection requirements.

The GS7048E and GS3548E are IEC certified to meet the most stringent worldwide PV safety and emission standards.

Detailed Description

  • Grid-interactive and stand-alone capability in the same package
  • 7000 and 3500 Watts of continuous power, respectively
  • GridZero Technology minimizes grid dependence
  • Unsurpassed surge capacity
  • Field adjustable input/output voltage and frequency boundries
  • Dual AC inputs
  • Field serviceable modular design
  • GSLC load center option allows for quick and easy installation

Radian Series Technologies


The newest of the Grid/Hybrid Radian’s seven input modes, GridZero provides the perfect balance between utility power and stored renewable energy. By allowing a home or business to satisfy most of its power needs with renewable sources, grid supplied power is only tapped when load demand exceeds a pre-set threshold. While the Radian is still grid-connected, grid dependence can be reduced to zero whenever possible. GridZero technology offers four critical advantages compared to typical systems:

Higher System Economics: By maximizing the contribution of renewables to total energy consumption, selling back to the grid is no longer required for system Return on Investment (ROI).

Lower Cost-of-Entry: Through seamless blending of grid power and renewable energy sources, a smaller system can perform like a much larger one, reducing equipment and installation costs.

Greater Simplicity: Because the Radian Series remains connected and synchronized to the grid, no destabilizing transfer is required when grid power is needed.

“Best Case Scenario” Design: As energy policies and incentives change, GridZero technology can prioritize self-consumption and offset over sell-back to always deliver the best renewable energy value possible.

Advanced Battery Charging

OutBack built its reputation on legendary off-grid reliability and battery backup expertise. That background is thoroughly built into the new Radians. In addition to GridZero Technology, the new Radians also feature an Advanced Battery Charging (ABC) profile option. Advanced Battery Charging offers expanded charging voltage and time parameters, enabling system designers to accommodate the specific charging profiles and algorithms of newer energy storage technologies including:

  • Lithium Ion Batteries
  • Aqueous Ion Batteries
  • Flow Chemistry Batteries

Radian Series Operating Modes

1- Mini Grid Operating Mode:

Ideal for sites where sufficient renewable energy enables mostly off-grid operation.

2- Grid-Tied Operating Mode:

Ideal for systems in regions with Feed-in-Tarrif (FiT), net-metering or other incentive programs. Control use features include grid use timers.

3- GridZero Operating Mode:

Ideal in areas where incentives are subject to change and utility sell-back options may be limited. Control use features include grid use timers.

4- Support Operating Mode:

Ideal for sites with small generators or inadequate grid power. Control use features include system-level high battery transfer (HBX) programming, prioritizing batteries as primary source.

5- Backup Operating Mode:

Ideal for systems where computers and other sensitive loads are present. Control use features include system-level high battery transfer (HBX) programming, prioritizing batteries as primary source.

6- UPS Operating Mode:

Ideal for commercial applications where uninterrupted power is mission-critical.

7- Generator Operating Mode:

Ideal for systems with undersized or low power quality generators.