Outback Power GS4048A-01 (Bundled for AC Coupling)

The Outback Power GS4048A-AC-KIT is a 4kW Radian Series inverter/charger AC Coupling Bundle. It is designed to enable existing grid-tied solar systems to have battery backup power in case of a utility outage.                                                                                                 

 Key features

Backup power: When the utility grid goes down, this system allows an existing grid-tied solar array to power your loads or charge a battery bank during the day.
AC coupling: The bundle is equipped with advanced AC Coupling technology, which allows for the integration of existing grid-tied inverters (up to 3kW) with a battery bank. It uses frequency shifting to control the output of the grid-tied inverter.
Dual AC inputs: The inverter/charger has dual AC inputs, providing the flexibility to connect to both the grid and a generator. This allows you to recharge batteries from a generator during extended outages or inclement weather.
Advanced battery charging: The system supports a range of battery technologies, including lithium-ion batteries. It provides enhanced protection and control for all types of batteries.

GridZero technology: This feature prioritizes the use of stored and renewable energy sources, minimizing dependence on the utility grid.
Scalable: The system can be expanded by combining multiple inverters for larger applications. 

Specifications

Continuous power output: 4000 VA (4kW).
Input voltage: 48 VDC.
AC output voltage: 120/240 VAC.
Battery charge output (maximum): 57.5 ADC.
Weight: 82 lbs, according to Sunhub.com.
Dimensions (H x W x D): 28" x 16" x 8.7"," x 16" x 8.7",