HIITIO is proud to announce the launch of its High-speed Automatic Transfer Switch (HATS), a next-generation solution engineered for critical power continuity. Designed with cutting-edge switching technology, the HATS series achieves ultra-fast transfer in as little as 5 milliseconds, ensuring uninterrupted power delivery for the most demanding applications such as emergency systems, data centers, industrial control, and fire protection.

Product Introduction
The HIITIO High-speed Automatic Transfer Switch is purpose-built for dual-circuit power supply (grid-to-grid) systems with AC 50Hz, a rated insulation voltage of 1000V, an operating voltage up to 400V, and current capacities ranging from 32A to 800A.

Whenever abnormalities occur in the primary power supply — including power outage, phase loss, or severe voltage fluctuation — the HATS immediately transfers to the backup source. The entire detection and switching sequence is completed within 0–5ms, guaranteeing non-stop operation of critical loads where every millisecond counts.
This performance makes the HATS a perfect alternative to conventional Static Transfer Switches (STS), offering unmatched reliability while maintaining mechanical durability.
Key Advantages
- Ultra-fast 5ms switching – guarantees uninterrupted operation for essential equipment and sensitive loads.
- Intelligent detection & event recording – accurately records action event waveforms, delivering clear, intuitive monitoring for operators.
- Fail-safe reliability – switching is inhibited during load short circuits, preventing unsafe transfers.
- Advanced mechanical design – featuring excitation drive and active arc extinguishing technology, ensuring safety and long service life.
- Flexible operating modes – supports self-injection, self-recovery / non-self-recovery, timing, and remote switching adjustments.
- Synchronous switching option – available to meet demanding application requirements.
Performance for Critical Applications
By combining mechanical robustness with intelligent control, the HIITIO HATS delivers the speed of a static transfer switch with the safety of a mechanical design. This innovation allows it to meet the requirements of critical tasks such as firefighting systems, emergency lighting, data centers, and industrial processes, where even the briefest power loss is unacceptable.




The HATS ensures uninterrupted power continuity, protecting both equipment and human safety in environments where downtime is not an option.
Engineered for Professionals
The HIITIO High-speed Automatic Transfer Switch (HATS) is designed for critical power environments where reliability is paramount. From data centers that demand uninterrupted IT operations, to industrial facilities requiring stable power for automated production lines, to hospitals and medical centers where patient safety depends on continuous energy supply, and telecommunication systems that must maintain constant connectivity — the HATS delivers ultra-fast 5ms switching, intelligent monitoring, and flexible control to guarantee safe and reliable power continuity across these essential sectors.


A Smarter Alternative to STS
ATS (Automatic Transfer Switch) |
HATS (High-speed Automatic Transfer Switch) |
STS (Static Transfer Switch) |
|
---|---|---|---|
Standards | GB/T14048.11 (IEC60947-6-1) |
GB/T14048.11 (IEC609476) |
GB/T34940.1/2/3 |
Transfer Time | Transfer time on power loss > 100 ms | Transfer time on power loss < 5 ms. | Transfer time on power loss: 4 to 10 ms |
Availability of Manual Operating Handle | Manual operating handle is available, allowing manual operation in emergencies | Manual operating handle is available, allowing manual operation in emergencies. | Not available |
Resistance to Harmonic Interference | Excellent immunity to harmonic interference | Excellent immunity to harmonic interference. | Weak immunity to harmonic interference. |
Surge Withstand Capability (Lightning Protection) | Excellent | Excellent | Very fragile |
Overload Capacity | Excellent | Excellent | Overload current: 1.25× rated. For inductive loads, capacity should be 3–5 times larger. |
Load Category | Motor/Mixed Load: Up to 10× inrush and breaking current. |
Motor/Mixed Load: Up to 6× making and breaking current. |
IT / Resistive Load |
Availability of Arc Extinguishing System |
Air arc extinguishing | Features a vacuum arc extinguishing system for fast arc suppression. | Not available |
Product Structure | SPDT or DPST structure, with single-phase motor or excitation drive. | Electromagnetic (excitation) operation, Mechanical latching, Vacuum arc extinguishing | Simple dual thyristor (SCR) arrangement. |
Environmental Requirements | No Limitations | No Limitations | Requires precision air conditioning or fan-based cooling. |
Energy consumption | No Consumption | No Consumption | High energy consumption: A 400A model typically consumes around 48 kilowatt-hours per day. |
Cost | Relatively low | Moderate cost | Higher cost |
Traditional Static Transfer Switches (STS) are often used in critical power systems, but can be costly and complex. HIITIO’s High-speed ATS offers a cost-effective, high-performance alternative, delivering the same ultra-fast switching capabilities with enhanced safety and mechanical durability. This makes HIITIO HATS an ideal choice for demanding applications in commercial buildings, industrial facilities, and public safety systems. Contact HIITIO for your next project!

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