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100A~630A Manual Transfer Switch ATS - Durable Power Solutions from China Suppliers & Factory

The LMGL-Z1A series manual transfer switch is designed for AC 50Hz applications with a rated voltage below 660V (690V). This switch is ideal for environments where infrequent circuit or electrical connections and disconnections are required, accommodating a rated voltage of up to 440V and a rated current range of 100A to 630A. As a trusted China supplier and factory, we ensure that our products meet the highest standards of quality and reliability. For inquiries, please contact us at sale@lvma-ele.com
    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. ​

    By manually operating the handle, the manual switch makes the rotating shaft drive the moving contact to connect with different static contacts, so as to realize the switching of the circuit. When the operating handle is in different positions, the moving contact is closed with the corresponding static contact, and the corresponding circuit is connected. At the same time, it is disconnected from other static contacts and cuts off other circuits, so as to realize the conversion between different circuits.

    The switch housing is made of unsaturated polyester resin and glass fiber reinforced plastic (DMC). The spring energy storage and speed regulating mechanism can quickly connect or disconnect with the circuit breaker. The structure of the contact is parallel double breakpoint and two separation heads. The limit position of the switch can be automatically determined by the contact pressure guaranteed by the shape spring, and the switch position is indicated by the obvious switch label.

    Model Description
    automatic-transfer-switch-20
    Main Technical Parameters
    Rated Current (A) 100 125 160 200 225 250 315 400 500 630
    Rated insulated voltage (Ui) 690V 800V
    Rated impulse withstand voltage (Uimp) 8kV
    Rated working voltage (Ue) AC 400V
    Rated frequency 50/60Hz
    Use category AC-22B
    Rated short-circuit connection capacity Icm (kA) 8 17 40
    Short-time tolerance current Icw (kA) 5 10 20
    Mechanical life 20000 15000 10000
    Electrical life 1500 1000 1000
    Structure and Mounting Dimensions
    automatic-transfer-switch-11
    automatic-transfer-switch-6-2
    automatic-transfer-switch-12
    automatic-transfer-switch-13
    Frequently Asked Questions
    Q
    What is the rated working voltage of this automatic transfer switch?
    The rated working voltage (Ue) of this automatic transfer switch is AC 400V, making it suitable for standard low-voltage power distribution systems.
    Q
    What current ratings are available for this transfer switch?
    The switch is available in a range of rated current options: 100A, 125A, 160A, 200A, 225A, 250A, 315A, 400A, 500A, and 630A, covering a wide range of application requirements.
    Q
    What material is used for the switch housing?
    The switch housing is made of unsaturated polyester resin and glass fiber reinforced plastic (DMC), which provides excellent mechanical strength, electrical insulation, and durability.
    Q
    What is the mechanical life expectancy of this switch?
    The mechanical life varies by current rating: 20,000 operations for 100A, 15,000 operations for 125A–250A, and 10,000 operations for 315A–630A models.
    Q
    What is the use category of this automatic transfer switch?
    This switch falls under use category AC-22B, which is suitable for switching mixed resistive and inductive loads, including motor loads with moderate inrush currents.
    Q
    How does the contact mechanism of this switch work?
    The contact structure uses a parallel double breakpoint and two separation heads design. The spring energy storage and speed regulating mechanism ensures fast and reliable connection or disconnection, while the shape spring guarantees consistent contact pressure and automatic limit positioning.

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