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STS-Energy Storage

Xixing Technology’s Energy Storage STS is an industrial-grade intelligent static transfer switch integrating ≤20ms seamless grid/island transition, high-precision multi-source monitoring, and supercapacitor-based short-term energy buffering to ensure uninterrupted power quality for critical loads.

Featuring a compact rack-mount design with wide operating temperature (-20°C to +70°C), IP20 protection, dual RS485/CAN communication, and comprehensive protection functions, it delivers reliable, easily integrable backup power for semiconductor fabs, data centers, and precision manufacturing lines.

TECHNICAL DATA

Parameter	Specification	Description
Control Function	Rapid grid-tied/off-grid transfer	Customizable control software based on customer requirements and application scenarios
Grid-tied/Off-grid Transfer Time	≤20 ms
High-precision Current Sampling Interface	9 channels, for grid-side, microgrid-side, and PV-side current measurement	Used for current acquisition, active/reactive power calculation, and grid-tied/off-grid switching logic
High-precision Voltage Sampling Interface	9 channels, for grid-side, microgrid-side, and PV-side voltage measurement	Used for voltage acquisition, active/reactive power calculation, and grid-tied/off-grid switching logic (supports both 3P3W and 3P4W; customizable for special applications)
3-phase AC Contactor Control Interface	Built-in 12 V miniature relay for external contactor engagement/disengagement control
12 V Power Supply Output	2 channels, providing 12 V DC power for external relays
Configurable Digital I/O (DIO)	6 channels, supporting NO/NC contacts and passive dry-contact input signals	I/O ports are freely configurable per customer requirements
Communication Protocol	3× RS485, 1× CAN	Communication targets are freely configurable
Status Indicators	POW / ALM / COM	POW: Solid ON = Normal power supply; OFF = No power. ALM: Solid ON = Fault detected; OFF = Normal operation. COM: Flashing = Active communication; OFF = No communication
Operating Temperature	-20 °C ~ +70 °C
Power Supply Input	Line voltage: 240 V ~ 520 V	Operates normally with either AC line voltage (240 V–520 V) or DC voltage (340 V–730 V) connected to the sampling terminals
Weight	1.2 kg
Dimensions (L × W × H)	236 mm × 154 mm × 42.7 mm
Degree of Protection	IP20
Maximum Operating Altitude	2000 m

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