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ats automatic transfer switch

China ATS 630A Automatic Transfer Switch LMS1-LA3 from Leading Suppliers and Factory

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Model Name: LMS1-LA3

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Rated Working Voltage: AC230V, AC400V

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Rated Working Current: 16A-630A

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Pole: 2P, 3P, 4P

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Rated Insulation Voltage: AC 690V

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Frame Class: 63, 125, 250, 630

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Rated Frequency: 50Hz

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Product Category: PC Class

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Features: 2 Position, Built-in ATS Controller

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Drive Mode: Excitation type

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Certification: CE, CB, CCC

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Standard: IEC 60947-6-1

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Email: sale@lvma-ele.com

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Discover the LMS1-LA3, an advanced electrical component from leading China suppliers and factory. With a rated working voltage of AC230V or AC400V and a versatile current range from 16A to 630A, this product is designed to cater to diverse industrial applications. Available in 2P, 3P, and 4P configurations, the LMS1-LA3 meets rigorous standards, boasting a rated insulation voltage of AC 690V and a frame class of 63, 125, 250, or 630. Operating at a frequency of 50Hz, this PC class component features a built-in ATS controller, ensuring seamless operation and reliability. Certified with CE, CB, and CCC, you can trust the LMS1-LA3 to fulfill your electrical requirements efficiently. For inquiries, contact us at sale@lvma-ele.com.

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    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-LA3 is a PC-level dual power automatic transfer switch, the current specification covers 16A-630A, there are two types of 3p and 4p, the use of isolated switch type structure with motor drive body, for one two-stage design, with good electrical isolation performance, can ensure the safety and reliability when switching power supply.
    Model Description
    Model Description
    Main Technical Parameters
    Model Name LMS1-63LA3 LMS1-125LA3 LMS1-250LA3 LMS1-630LA3
    Rated insulation voltage (Ui) AC 690V
    Rated working voltage (Ue) AC 400V
    Rated working current (Ie) 16~63A 20~125A 160~250A 315~630A
    Rated concussion withstand voltage (Uimp) 8kV
    Using category AC-33iB
    Kind of throw Double throw
    Wiring method Front board
    Poles 2P 3P 4P 2P 3P 4P 2P 3P 4P 2P 3P 4P
    Performance Short-time resistance current 5kA 10kA 12.6kA
    Through to breaking capacity 10Ie 6Ie 6Ie
    Electrical Life / Mechanical Life 6000 / 20000 1000 / 4000
    Terminal and Wiring Layout
    Start generator: when fault occurs in the normal power, this port will connect after delaying some time.
    Normal close: When the normal power of ATS is in closing state, closing signal without power is output from this port.
    Standby close: When the standby power of ATS is in closing state, closing signal without power is output from this port.
    Normal earth wire: When ATS are 3 phases, the normal earth wire is connected into this port.
    Standby earth wire: When ATS are 3 phases, the standby earth wire is connected into this port.
    Remark: The normal earth wire and standby earth wire is just suitable for ATS of 3 phases.
    Communication Port Description
    485A and 485B: RS485 communication terminal
    Communication Protocol Parameters:
    • Module Address: 1 (range: 1-32, user can set)
    • Baud Rate: 9600bps
    • Data Bits: 8 bits
    • Parity Bit: None
    Note: NC is reserved for undefined ports, users are not allowed to connect.
    Structure and Mounting Dimensions
    LMS1-LA3 Series PC Automatic transfer switch Ats 604
    Mounting Dimensions Diagram 1
    Mounting Dimensions Diagram 2
    Frequently Asked Questions (FAQ)
    What is a PC-level Automatic Transfer Switch like the LMS1-LA3?

    A PC-level ATS is capable of making and withstanding short-circuit currents without incorporating an integral overcurrent tripping mechanism, providing high electrical isolation, safety, and reliability during power transfer.

    What current ratings and pole configurations are available?

    The LMS1-LA3 series covers rated currents from 16A up to 630A across four frame sizes (63A, 125A, 250A, and 630A) and is available in 2-pole, 3-pole, and 4-pole configurations.

    How does the generator auto-start function operate?

    When a power fault is detected on the primary (normal) power supply, the start generator port connects after a preset time delay to signal the generator to start up.

    What communication capabilities does the switch provide?

    It includes RS485 communication terminals (485A / 485B) running at 9600 bps baud rate, 8 data bits, no parity bit, with configurable module addresses ranging from 1 to 32.

    What is the mechanical and electrical service life?

    For frame sizes up to 250A, the switch achieves up to 6,000 electrical operations and 20,000 mechanical operations. For the 630A frame, it provides 1,000 electrical and 4,000 mechanical operations.

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