Hospitals, shopping malls, office buildings, industrial parks and other critical premises have extremely high requirements for power supply continuity. A power outage in these scenarios will cause operation interruption, equipment damage and even safety accidents. As a core distribution device for power supply reliability, the Automatic Transfer Switch (ATS) operates as follows: when the normal power supply suffers outage or phase loss, it automatically transfers the load circuit to the standby power supply; when the normal power supply recovers, it automatically switches back to the normal power supply, ensuring uninterrupted and stable power supply for critical premises throughout the process.
Core Product Features
✅️ Wide-range frame sizes with full current level coverage
The full series covers a rated thermal current range from 10A to 3200A, with multiple frame specifications to meet capacity demands from terminal distribution to main circuit scenarios.
✅️ High-speed switching with stable response for heavy-duty scenarios
Compliant with utilization category AC-33iB, it delivers fast switching speed and high current impulse resistance, stably drives inductive heavy loads such as motors, and adapts to complex industrial working conditions.
✅️ Diversified control with customized function options
It supports both automatic and manual operation modes. Function modules including remote control, fire protection linkage and generator start signal can be selected according to actual demands to match control requirements of different scenarios.
✅️ Reliable structure for safe operation and maintenance
Adopting a dual interlock design of electrical and mechanical interlock, it eliminates the risk of simultaneous closing of two power supplies. Equipped with forced double-break position and mechanical padlock functions, it can cut off the control circuit during maintenance to ensure higher operation safety.
As a full-featured PC-class automatic transfer switch, the RDH5D series is applicable to industrial and mining enterprise distribution systems with a rated thermal current up to 3200A. Integrated with multiple capabilities such as detection, communication and interlock, it can easily handle various complex power distribution conditions.
Controller Type Details
⭕️ Type Ⅰ Controller
· Realizes fully automatic transfer between normal power supply and standby power supply
⭕️ Type Ⅱ Controller
1. Includes all functions of Type Ⅰ
2. Supports forced "0" position (double break position) to cut off both power supplies simultaneously
3. Supports remote control operation
4. Optional generator start signal or DC24V fire protection function (choose one)
⭕️ Type Ⅲ Controller
· Includes all functions of Type Ⅱ · Adds three-phase voltage detection and phase loss protection for the normal power supply
General Functions
It can be equipped with a split controller for split installation, supporting full function combinations including fully automatic transfer, forced "0" position, remote control, and three-phase detection protection, adapting to diverse installation and application requirements.
Post time: Jul-18-2026
