SUN-STS500L

The Deye SUN-STS500L is a high-performance 500 kW Static Transfer Switch (STS) designed for commercial and industrial energy storage systems. It provides fast and reliable automatic switching between the grid, energy storage system (PCS), and backup generator, helping maintain continuous power supply for critical loads.

With a rated power of 500 kW and a fast transfer time of less than 20 ms, the SUN-STS500L is designed for large-scale C&I energy storage applications where reliable power continuity and rapid source switching are essential.

Key Features

• 500 kW rated power
• Designed for commercial and industrial energy storage systems
• Fast transfer time of less than 20 ms
• Supports switching between Grid, PCS and Generator
• Compatible with three-phase low-voltage AC systems
• Rated current up to 725 A
• Supports 220/380 V and 230/400 V systems
• 3-phase, 3L/N/PE configuration
• CAN and RS485 communication interfaces
• Natural cooling
• Operating temperature range from -25°C to +60°C
• Maximum installation altitude of 4,000 m
• IP20 protection rating
• Designed according to IEC/EN 61439-1/-2
• 10-year warranty

The SUN-STS500L is an ideal solution for large-scale C&I ESS projects requiring reliable automatic transfer between different AC power sources. It can be integrated with Deye PCS and other compatible energy storage system components to provide fast and stable backup power switching for commercial and industrial loads.