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400amp Ats
ats 400a
ats 400a

LMS1-SN Series 400A Automatic Transfer Switch ATS - Reliable China Suppliers & Factory Solutions

Introducing the LMS1-SN Model, a premier product from our factory in China, designed for superior performance and reliability, **Key Specifications:**, - **Rated Voltage:** AC 230A, AC 400V, - **Rated Current Range:** 16A to 630A, - **Pole Configurations:** Available in 2P, 3P, and 4P options, - **Product Category:** PC Class, **Distinctive Features:**, This model boasts a 3-position design and utilizes an excitation type drive mode, ensuring efficient operation, **Certifications and Standards:**, Our LMS1-SN is certified by CE, CB, and CCC, meeting the stringent IEC 60947-6-1 standards for electrical equipment, As leading suppliers in the industry, we ensure that our products are manufactured with the highest quality standards. For inquiries, reach out at sale@lvma-ele.com, Choose LMS1-SN for your electrical needs and experience the reliability of products from a trusted factory in China
    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. ​

    LMS1-SN Series PC class dual power Auto Transfer Switch, mainly used in two way power supply system with rated voltage below 400V, AC 50/60Hz, rated current up to 630A. When one power supply is abnormal, it transfers between two power supply systems to ensure power supply reliability and safety.

    Model Description

    automatic-transfer-switch-14
    ⚠ Notice:
    1. Separated type ATS can be chose Y-701 (LED) or Y-702 (LCD) Controller.
    2. ATS without output signal to start generator; Y-701 and Y-702 controller with it.

    Working Environment

    • ■ Ambient air temperature: Ambient temperature -5℃ to +40℃, and the 24-hour average temperature value does not exceed +35°C. Users whose ambient air temperature is higher than +40°C or lower than -5°C should consult with the manufacturer.
    • ■ The highest temperature of atmospheric humidity: When the degree is +40℃, the relative humidity does not exceed 50%, and the maximum relative humidity per month is 90%. Resistant to the influence of humid air on the sea, and can allow higher relative humidity at lower temperatures. Special measures should be taken for the occasional condensation caused by temperature changes.
    • ■ Installation altitude: The altitude of the installation site does not exceed 2000 meters. When used at higher altitudes, the dielectric strength and cooling effect of the air should be considered to be reduced; please consult with the manufacturer.
    • ■ Pollution level: The environmental pollution level of the installation site is level 3.
    • ■ Installation category: IV.
    • ■ Installation inclination: The product is fixedly installed in the cabinet; the maximum inclination is ±22.5°.
    • ■ Arcing distance: The arcing distance is 30mm when AC 400V. The arcing distance when AC 690V is 60mm.

    Main Technical Parameters

    Model Name

    LMS1-SN

    Insulation voltage

    AC 690V

    Rated voltage

    AC 400V

    Rated current

    20A~125A

    160A~250A

    315A~630A

    Rated impulse withstand voltage

    8kV

    Kind of throw

    Double throw

    Wiring method

    Front board

    Short-time resistance current

    10kA

    Through to breaking capacity

    17kA

    Transfer time

    A Power

    Input

    80ms

    80ms

    100ms

    Break

    30ms

    30ms

    30ms

    B Power

    Input

    100ms

    100ms

    120ms

    Break

    30ms

    30ms

    30ms

    Electrical Life

    1000

    1000

    Mechanical Life

    5000

    4000

    Use type

    AC-33ib

    Accessories

    Manual handle

    Structure and Mounting Dimensions

    LMS1-LA Series Automatic Transfer Switch Ats 630A06
    automatic-transfer-switch-15-1
    automatic-transfer-switch-16
    LMS1-LA Series Automatic Transfer Switch Ats 630A03
    Frequently Asked Questions (FAQ)
    Q What is the rated current range of the LMS1-SN Series Automatic Transfer Switch?
    A The LMS1-SN Series ATS supports rated currents from 20A up to 630A, covering a wide range of applications in dual power supply systems with rated voltage below AC 400V.
    Q What type of controller can be used with the separated type ATS?
    A The separated type ATS can be equipped with either the Y-701 (LED) or Y-702 (LCD) controller. Note that the standard ATS does not include an output signal to start a generator, but the Y-701 and Y-702 controllers do provide this function.
    Q What is the transfer time of the LMS1-SN ATS when switching between power sources?
    A For the 20A–250A range, Power A input transfer time is 80ms and break time is 30ms; Power B input is 100ms and break is 30ms. For the 315A–630A range, Power A input is 100ms and Power B input is 120ms, with break times of 30ms for both.
    Q What is the installation altitude limit for the LMS1-SN Series ATS?
    A The recommended installation altitude does not exceed 2000 meters. At higher altitudes, the dielectric strength and cooling efficiency of the air are reduced. Please consult the manufacturer if installation above 2000 meters is required.
    Q What are the electrical and mechanical life ratings of the LMS1-SN ATS?
    A The electrical life is 1000 operations for all current ratings. The mechanical life is 5000 operations for the 20A–250A range and 4000 operations for the 315A–630A range.
    Q What is the short-circuit protection capability of the LMS1-SN Series ATS?
    A The LMS1-SN Series ATS has a short-time resistance current of 10kA and a through-to-breaking capacity of 17kA, providing reliable protection in the event of short-circuit conditions in the power supply system.

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