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ats controller.jpg

Y-700 Automatic Transfer Switch Controller from China Suppliers - Reliable Power Supply Management Factory Solution

Introducing our Dual Power Automatic Transfer Switch Controller, designed to provide reliable monitoring of voltage, frequency, phase, and other essential parameters from two different power sources. This innovative device ensures uninterrupted power supply by swiftly detecting any abnormalities in the power supply, such as over-voltage, under-voltage, phase loss, or inconsistent frequency. When an issue is identified, our controller activates the appropriate switching equipment based on pre-configured logic and programming, efficiently transferring the load to the stable power source. As a leading supplier in China, our factory produces high-quality controllers that guarantee continuous and stable power supply for various applications. Choose our Dual Power Automatic Transfer Switch Controller for unmatched performance and reliability in power management
    LMS1-LA Series Manual
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    Product Details

    LMS1-LA as our ingenuity research and development of a new generation of dual power automatic transfer switch, in the performance and technology to achieve a major breakthrough. The product provides 63A, 125A, 250A, 400A, 630A and other rated current specifications, whether it is the continuous operation of massive servers in data centers, or the uninterrupted power supply of life support equipment in hospital ICU wards, the stable operation of elevator and fire fighting system in high-rise buildings can fully meet the power demand in different scenarios. ​

    Its switching speed can be called industry-leading, switching time only 10ms-50ms, with millisecond response speed to complete power conversion. In the data center, the LMS1-LA automatic transfer switch can switch to the standby power supply in a very short period of time in the face of sudden power failure, avoiding data loss and system collapse caused by momentary power failure; in the hospital environment, the LMS1-LA automatic transfer switch can switch to the standby power supply in a very short period of time, millisecond-level power switching can guarantee the stable operation of precision instruments and first-aid equipment in operating rooms, and escort the safety of patients. When applied to high-rise buildings, fast power changeover ensures smooth parking of elevators, normal operation of fire fighting systems and improved building Factor of safety. ​
    The transfer switch is composed of a high performance excitation contactor and an intelligent controller. When working, the electromagnetic coil produces a strong and stable attraction to drive the switching action to ensure the instant completion of power switching. This feature not only effectively guarantees the rapid switching of the power supply when the equipment is powered off, but also realizes the seamless connection of the power supply, which provides a reliable and solid power guarantee for the equipment with strict requirements for power continuity. ​

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    Y-700 series ATS controller is intelligent dual-supply switch module, which integrates a programmable function, automatic measurement, LCD display, and digital communication. It combines digital, intelligent, networking, measurement and control process automation, disoperation, in order to reduce the faults during operation. It is the best ideal option in ATS. Y-700 series ATS controller is made of microprocessor as its core, can accurately detect extended-spectrum 2-way-3-phase voltage and also make accurate judgment and output passive control switch under the abnormal voltage (over and under voltage, miss phase and over and under frequency).

    This controller has full consideration in various application of ATS (automatic transfer system) can be directly used for Intelligent ATS, Contactor ATS, Circuit Break ATS etc. It have compact structure, advanced circuits, simple wiring and high reliability, be widely used in Electric power, Telecommunications, Petroleum, Coal, Metallurgy, Railways, Municipal, Intelligent building, Electrical devices, Automatic control and Testing system etc.

    Model Description
    Model Description01
    Main Technical Parameters
    Operating Voltage
    1. DC 8.0V~35.0V, power supply constantly
    2. HTS220/HWS560 Power mould supply power (No battery charge)
    3. AC power L1N1/L2N2 supply. Voltage range AC(160~280V)(Y-700/B、Y-700/BI)
    Power Consumption <3W (Standby mode: ≤2W)
    AC Voltage Input AC System Y-700、Y-700/I Y-700B、Y-700/BI
    3-phase 4-wire (L-L) 80V~625V 80V~480V
    3-phase 3-wire (L-L) 80V~625V Not Used
    1-phase 2-wire (L-L) 50V~360V 50V~280V
    2-phase 3-wire (L-L) 80V~625V 80V~480V
    Rated Frequency 50/60Hz
    Close And Open Trip Relay Output 16A 250V AC Free voltage relay output
    Programmable Relay Output 16A/7A 250VAC Free voltage relay output
    Digital Input Connecting to GND is active
    Communication RS485, MODBUS Protocol
    Dimensions 211mm x 155mm x 55mm
    Panel Cutout 186mm x 141mm
    Operating Temp Range Temperature: (-25~+70)°C, Humidity: (20~90)%
    Storage Condition Temperature: (-30~+80)°C
    Protection Rank IP55: when waterproof sealing gasket added between controller and screen
    IP42: when waterproof sealing gasket NOT added between controller and screen
    Insulation Strength Object: Among the input/output/power supply
    Quoted standard: IEC 688-1992
    Test way: AC1.5kV/1 min leak current 5mA
    Weight 0.8kg (Y-700, Y-700/I) / 1.0kg (Y-700/B, Y-700/BI)
    Operation Panel
    Structure and Mounting Dimensions01Structure and Mounting Dimensions02
    Connection Mode
    Structure and Mounting Dimensions04Structure and Mounting Dimensions05Structure and Mounting Dimensions06
    Structure and Mounting Dimensions07
    ❓ Frequently Asked Questions
    Q What types of ATS applications is the Y-700 series controller compatible with?
    The Y-700 series ATS controller is designed for a wide range of automatic transfer system applications, including Intelligent ATS, Contactor ATS, and Circuit Break ATS. Its flexible design makes it suitable for use in electric power, telecommunications, petroleum, coal, metallurgy, railways, municipal infrastructure, intelligent buildings, and industrial automation systems.
    Q What is the operating voltage range of the Y-700 series ATS controller?
    The Y-700 series supports multiple power supply options: DC 8.0V–35.0V (constant supply), HTS220/HWS560 power module supply (no battery charge required), and AC power via L1N1/L2N2 with a voltage range of AC 160–280V (applicable to Y-700/B and Y-700/BI models).
    Q What communication protocol does the Y-700 controller support?
    The Y-700 series ATS controller supports RS485 serial communication using the MODBUS protocol. This enables seamless integration into modern SCADA systems, building management systems, and other digital network environments for remote monitoring and control.
    Q What is the protection rating (IP rating) of the Y-700 ATS controller?
    The protection rating depends on the installation method. The controller achieves IP55 when a waterproof sealing gasket is installed between the controller and the panel screen, providing protection against dust and water jets. Without the gasket, the rating is IP42, offering basic protection against solid objects and dripping water.
    Q What abnormal voltage conditions can the Y-700 controller detect and respond to?
    The Y-700 series controller, built around a microprocessor core, can accurately detect and respond to a wide range of abnormal voltage conditions on 2-way 3-phase power supplies. These include over-voltage, under-voltage, phase loss (missing phase), over-frequency, and under-frequency. Upon detection, it outputs a passive control switch signal to manage the transfer automatically.
    Q What are the installation dimensions and panel cutout requirements for the Y-700 controller?
    The Y-700 series controller has overall dimensions of 211mm × 155mm × 55mm. For panel mounting, a cutout of 186mm × 141mm is required. The unit weighs 0.8kg for standard Y-700 and Y-700/I models, and 1.0kg for the Y-700/B and Y-700/BI models.

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