Automatic Transfer Switch (ATS)
100A, 160A, 250A, 400A, 630A, 800A, 1000A, 1250A, 1600A, 2000A, 2500A, 3200A
Automatic Transfer Switch (ATS) is a pivotal electrical device designed to seamlessly transition between two power sources (main/backup), ensuring an uninterrupted power flow to crucial loads while mitigating the risk of production halts, data losses, or equipment harm during power outages.
- Core functions
Automatic Switching - In the event of main power failure, perhaps due to outages, undervoltage or overvoltage, the system effortlessly shifts to a backup power source (such as generator, UPS, or secondary mains power).
Manual priority mode - Facilitates manual forced switching to ease maintenance or handle emergencies efficiently.
Zero second switching (optional) - Select variants support flawless transitions, perfect for environments demanding relentless power stability, such as data centers and medical equipment.
Exceptional in protecting electrical integrity, ensuring vital areas remain constantly powered!
Intelligent monitoring: Continuously monitors voltage and frequency, instinctively engaging switching when abnormalities are detected.
High reliability: Built with industrial-grade precision to endure frequent operations, boasting a lifespan exceeding 10,000 cycles.
Safety protection: Features overload and short circuit protection, with IP protection levels crafted for challenging environments.
Flexible control: Supports both automatic and manual modes for adaptable operation.
Main Technology Parameters: Discover the core technical elements that define the exceptional performance and reliability of the MTQ3-630 designed for 630A applications.

Connecting terminal (Circuit board aging test for 48 hours)
Fire alarm function of ATS
In the fire power supply system, the dual power automatic transfer switch (ATS) plays a crucial role. It not only executes seamless automatic switching between primary and backup power sources but also integrates a sophisticated fire alarm linkage function. This ensures that critical fire equipment, including smoke exhaust fans, fire pumps, and emergency lighting, remains continuously powered during a fire event. Additionally, it offers real-time status feedback to the fire control center, enhancing response efficiency and safety.
Forced Switching - Even if the main power supply is restored, the backup power supply must still be maintained until manually reset. This feature prevents accidental power outages during crucial fire extinguishing operations.
High reliability - Featuring a mechanical/electronic dual interlock system to effectively prevent short circuits caused by the simultaneous connection of two power sources.
Fast response - Offers an impressively rapid switching time of ≤ 1 second, with specific critical loads requiring an even faster response time of ≤ 0.2 seconds.
Fire signal linkage - This function adeptly receives signals from the fire control center, ensuring the backup power supply is locked for maximum safety.
Switch structure explained:
1. Electric key lock:This component allows control of the switch's internal power supply. When the electric lock is open, the switch can be operated automatically and remotely. Conversely, when the electric lock is closed, operation is only possible manually via the handle.
2. Operating handle:To operate the switch using the operating handle, ensure the electric lock is securely closed.
3. Mechanic padlock:During inspection, first turn the switch to the "0" position with the operating handle. Then, engage the padlock mechanism and close the padlock to enable inspection. Activating the mechanism padlock cuts off the switch's internal power supply, rendering it non-operational both electrically and manually.
4. Position indication:This indicator clearly shows the switch's operational status, denoting positions I, 0, and II.
Installation Instructions
Installation Method for Dual Power Automatic Transfer Switch (ATS):
Installation Location: Position the ATS in a dry, well-ventilated area conveniently close to both the main and backup power supply inlets. This strategic placement ensures effortless operation and hassle-free maintenance.
Wiring Specifications: Connect the main and backup power sources directly to the ATS input terminals while the output terminal is seamlessly linked to the load. Ensure a meticulous distinction of the phase sequence (L1/L2/L3/N/PE) for optimal performance.
Switching Test: Conduct a simulated main power outage once the system is powered up. Check the automatic switching duration, which should typically be within 1.5 seconds, to guarantee uninterrupted power to the load.
Safety Requirements: Ensure the system is reliably grounded, with the shell protection level compatible with the environment, such as IP40 for indoor settings, in full compliance with the GB/T 14048.11 standard.
-Inner Packaging
For optimum protection, we employ shockproof materials
Material Options: Including foam and bubble film, among others.
Placement: Strategically placed around the circuit breaker, both on top and bottom, ensuring full coverage.
-External Packaging
Carton Selection
Material: Crafted from high strength corrugated cardboard box for maximum durability.
Carton Sealing Process
Method: Sealed meticulously with durable tape or robust strapping.
Requirement: Ensure a secure seal to effectively prevent any potential cracking of the box.
Identification and Labeling
Content Includes:Details such as product model, quantity, weight, manufacturer, and essential transportation labels (for example, fragile, upward, moisture-proof, etc.).
Location: Clearly visible and printed on the exterior of the cardboard box.
Domestic Transportation
For domestic deliveries within China, if a specific freight forwarder is appointed, we will ensure prompt transport to the specified location via reliable road transportation or efficient domestic express delivery once production is finalized.
International Transport
For smaller shipments requiring quick delivery to an international designated location, we partner with leading international express services such as
DHL, FEDEX, and UPS
Sea Freight/Air Freight
In cases of substantial shipment volumes where time allows, sea freight is our preferred choice. Partnering with a suitable and reputable freight company, they arrange for truck pickups, transporting goods to the designated port for secure warehousing.Finally, they are shipped by sea to the customer's preferred port, where the customer can collect goods using a bill of lading.
Mingtuo Electric Mingtuo Electric is not only a leader in the domestic market but is also making significant strides into the international arena. Our products are extensively utilized in a variety of sectors including construction, industry, and energy. The exceptional trust and favor we have garnered from numerous high-profile engineering projects speak to our unwavering commitment to quality and reliability.
The company adheres to the principle ofcustomer first, quality first, service first, reputation firstand relentlessly pursues the ethos of innovation and development. Our company is distinguished by its robust technical expertise, cutting-edge production technology, and seasoned experience in research and development. Renowned for our professionalism and technological leadership, we boast an extensive array of the most sophisticated production, testing, and inspection equipment available in China.
FAQ
Q: What is the product voltage/current range? What's the breaking ability?
A: Please consult our dedicated customer service team for detailed specifications.
Q: What is the MOQ? Do you support sample ordering?
A: The minimum order quantity is 1 set, and we do indeed support sample ordering to meet your needs.
Q: How long is the warranty period? How to apply for warranty?
A: Our products come with a warranty of one to two years. Warranty applications can be made conveniently through our customer service.
Q: Do you have CE, RoHS, UL and other certifications? Can you provide a certificate?
A: We have obtained CE and RoHS certifications and are ready to provide certificates upon request.
Q: Does the price include tax/shipping?
A: The listed price excludes shipping and taxes.
Q: What famous clients or project cases have you worked with?
A: We have proudly collaborated with esteemed clients such as the State Grid of China, Chint Group, and Xiaomi Group.