
Meta Description: Discover SHUYI’s compact automatic transfer switches for seamless power transitions in hospitals, data centers, and manufacturing. 3kA protection, 3-second switching, and global support.

1. 3-Second Power Failover for Critical Systems
SHUYI automatic transfer switches (ATS) ensure seamless transitions between primary and backup power sources in ≤3 seconds, minimizing disruptions for medical ventilators, data servers, and industrial machinery. This rapid response prevents costly downtime and ensures continuous operations in healthcare facilities, factories, and commercial buildings.
2. 3kA Short-Circuit Protection
Constructed with copper alloy contacts and arc suppression technology, SHUYI ATS delivers 3kA short-circuit protection and supports 100,000+ operation cycles. Overload and voltage monitoring features safeguard against electrical surges, making it ideal for environments with fluctuating power supplies.
3. Space-Saving Design for Modern Infrastructure
Designed to fit into 184–220mm enclosures, SHUYI ATS supports three-phase power systems (400V, 50/60Hz) while occupying minimal space. This compact design is particularly beneficial in hospitals, where space is often limited, and in data centers requiring dense equipment installations.
4. Customizable Solutions for Diverse Needs
SHUYI offers three-phase and single-phase configurations to meet specific industry requirements. Engineers can adapt switches for high-voltage environments (up to 690V) and integrate them with generators or UPS units. Additionally, the ATS supports remote monitoring via Modbus RTU, enabling real-time status tracking.

5. Global Support Network
With 100+ global distributors, SHUYI provides 24/7 technical assistance and localized expertise. Customers in Europe, Asia, and the Americas benefit from fast delivery and regional compliance support, including certifications like CE and RoHS (available upon request).
Technical Specifications
- Rated Voltage: AC 400V
- Rated Current: 10A, 16A, 20A, 25A, 32A, 40A, 63A
- Short-Circuit Capacity: 3kA
- Transfer Time: ≤3 seconds
- Mechanical Life: 3,000 cycles
- Electrical Life: 1,500 cycles
- Operating Temperature: -5°C to +40°C
Contact Us
- Tel/Fax: 0086-577-62840011
- Wechat/WhatsApp: 00861586807525