Our Uninterruptible Transfer Switch (UTS) delivers switching performance on par with Static Transfer Switches (STS), with a transfer time of less than 5 ms. What truly sets it apart is the cost advantage — you can save over 50% compared to STS solutions. Not only will the initial investment pleasantly surprise you, but the simplified design and replaceable components also ensure much lower ongoing maintenance costs, keeping your budget fully under control.
Transfer Time
Reliability
Max Current
The 5ms uninterrupted transfer switch UTS adopts DSP high-speed sampling technology and fast conversion technology, with a mechanical ATSE structure, achieving the switching speed of STS static switch and maintaining good electrical performance of the mechanical switch.
The 5ms uninterrupted transfer switch UTS is suitable for dual-circuit power supply (grid-grid) with AC 50Hz, rated insulation voltage 1000V, rated operating voltage up to 400V, and rated operating current 32A to 800A. The power supply is switched due to an abnormality in one power supply system to ensure continuous and reliable operation of important tasks (such as firefighting time, etc.).
A comprehensive understanding of the technical specifications and performance differences between ATS, UTS, and STS transfer switches.
| ATS (Automatic Transfer Switch) |
UTS (Uninterrupted 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 |
Less than 5 ms transfer time — same performance as STS, but at half the cost.
Our Uninterruptible Transfer Switch (UTS) guarantees seamless switching in under 5 milliseconds, matching the performance of Static Transfer Switches (STS).
But unlike STS, UTS helps you save over 50% in total cost — not just in initial purchase, but also in long-term maintenance. With a simplified design and replaceable components, your system remains reliable while your expenses stay predictable.
same as STS performance.
significant reduction in upfront investment
simplified structure, replaceable parts
safe, stable, and efficient switching
Pure mechanical design — immune to installation conditions, zero power consumption, with ultra-fast switching under 5ms.
Contact actuation achieved in less than 3ms, ensuring quick and reliable operation.
Instant zero-cross cut-off eliminates inrush current, protecting system stability.
Enables ultra-fast switching without any power interruption, ensuring continuity.
Comprehensive technical specifications designed to meet the most demanding industrial and commercial power transfer requirements.
| Model | HCT Series/UTS | ||||
|---|---|---|---|---|---|
| Rated Operating Voltage (Ue) | AC 400V | ||||
| Frame Current | 125A | 200A | 400A | 800A | |
| Rated operating Current (Ie) | 32A/63A/100A/125A | 160A/200A | 315A/400A | 630A/800A | |
| Transfer time | 5ms | ||||
| Poles | 2P/3P/4P | ||||
| Electrical level | Class PC | ||||
| Rated Frequency(Ui) | 50Hz | ||||
| Rated Insulation Voltage(Ui) | AC 1000V | ||||
| Rated Short-time Withstand Current(Icw) |
16kA/1s | ||||
| Rated Impulse Withstand Voltage(Uimp) |
12kV | ||||
| Lifespan | Mechanical | 20,000 ops | |||
| Electrical | 10,000 ops | ||||
| Standards | GB/T 14048.11-2016 | ||||
| Cutout Dimensions for Controller | 268*190mm | ||||
1. Main Power Busbar; 2. Backup Power Busbar; 3. Load Busbar; 4. Switch Position Display; 5. Operating Handle Hole; 6. Wiring Terminal。
Suitable for diverse industries and critical equipment that demand high reliability, stable power supply, and uninterrupted operation.
Explore the outstanding performance of the 5ms Uninterrupted Transfer Switch UTS in real-world applications, delivering seamless, reliable, and uninterrupted switching.
In elevator and escalator systems, even a brief power interruption can cause service disruptions and safety risks. HIITIO UTS enables 5ms seamless transfer with zero-crossing and arc suppression, ensuring safe, reliable elevator operation.
"The 5ms Uninterrupted Transfer Switch UTS has been running stably in our data center for over a year without any failures. The switchover timeis barely noticeable, fully meeting our high availability requirements."
"After installing the UTS, our production line's power outage problem was completely resolved, production efficiency increased by 15%, and the return on investment took less than six months."
"In the medical equipment field, reliability is paramount. 5ms Uninterrupted Transfer Switch UTS help us achieve zero-interruption operation of our equipment, ensuring patient safety."
HIITIO uninterrupted transfer switch combines cutting-edge technology with robust engineering to deliver unmatched performance and reliability.
Modern, premium design with lightweight structure and minimal footprint, enabling seamless integration into diverse electrical systems.
Built with high insulation strength and optimized safety measures, ensuring stable, reliable, and durable performance for long-term operation.
Electromagnetic coil mechanism supports versatile functions, intuitive control, and consistent high-performance switching.
Innovative detachable arc chamber improves safety, while simplifying inspection, replacement, and maintenance of contact components.
Guarantees uninterrupted power to critical loads through rapid switching technology, providing stable operation in demanding environments.
Available in ratings from 32A to 800A to meet various industrial and commercial requirements.
Headquartered in Hangzhou, China, HIITIO is a leading manufacturer of electronic components with over 20 years of expertise in advanced power solutions. Our 5ms uninterrupted transfer switch UTS is designed to ensure reliable, seamless, and ultra-fast power transmission for a wide range of industries, including data centers, telecom base stations, UPS systems, integrated solar-storage systems, industrial facilities, and critical equipment requiring uninterrupted power supply.
HIITIO UTS products comply with GB/T14048.11-2016 and IEC60947-6-1:2013 Low-voltage switchgear and controlgear, Part 6-1, ensuring international quality and safety standards.
Ensure your critical systems never experience downtime with the HIITIO 5ms Uninterrupted Transfer Switch UTS. Backed by over 20+ years of expertise and certified to international standards, HIITIO delivers the reliability and innovation you need to safeguard operations and maximize efficiency.
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HIITIO® was established in 2018 as a result of Hecheng Electric introducing a mature R&D team. HIITIO specializes in producing high-voltage DC electrical devices for EV, solar energy systems, and energy storage applications.
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