STS Series
The State Transfer Switch (STS) Box is a cutting-edge switching solution designed for use in commercial and industrial energy storage systems. This system enables precise control of inverters, allowing seamless transitions between grid-tied and off-grid modes. In the event of a grid outage, the inverter seamlessly switches to off-grid mode, providing power to critical loads through solar panels or batteries. When grid power is restored, the inverter smoothly transitions back to grid-tied operation. The STS is versatile, supporting connections with generators and accommodating large loads such as heat pumps and motors. During grid-tied operation, the STS supports a maximum load capacity of 138kW (200A) for the backup interface. This robust solution ensures continuous and reliable power supply, offering flexibility and efficiency in energy management.
Product Details
*1: When the inverter is operating in the off-grid state, Max. Apparent Power of Inverter Side can be reached 55kW.
*2: When the inverter is operating in the off-grid state, Max. Current of Inverter Side can be reached 83.3A.
*3: When the grid is on, the Max. Current of Backup side can be reached 200A.
*: Please visit GoodWe website for the latest certificates.
Advantage
Paired with ET 50kW for UPS-level and off-grid switching
Supports the connection and control of large loads
Supports control of diesel generator integration
IP65 ingress protection for outdoor installations