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Manual Transfer Switch LMGLZ 63A-3150A - China Suppliers & Factory Certified CE, CB, CCC

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Product Model: LMGLZ
Rated Voltage: AC400V
Rated Current: 63A~3150A
Number of Poles: 3P, 4P
Category: Manual Changeover Switch
Certifications: CE, CB, CCC
Standards: IEC 60947-3
Contact Us: sale@lvma-ele.com

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Discover our high-quality manual changeover switches manufactured in China. As a leading supplier and factory, we ensure that our products meet international standards, including CE, CB, and CCC certifications. The LMGLZ model offers reliable performance with a rated voltage of AC400V and a wide range of rated current options from 63A to 3150A, available in both 3P and 4P configurations. Trust us for durable and efficient electrical solutions.

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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. ​

    In a power supply system, a manual transfer switch manually switches a load from one power supply to another, ensuring that the load remains powered in the event of a power failure or need for maintenance, ensuring the continuous operation of the equipment. It is commonly used in hospitals, banks and other places that require high reliability of power supply. Applies to AC 50Hz, rated voltage below 660V (690V), applies to rated voltage below 440V. Rated current is 63A ~ 3150A.

    Model Description

    automatic-transfer-switch-26

    Product Features

    1. Simple and Reliable

    Simple Structure: Manual transfer switch adopts mechanical structure, intuitive operation, low failure rate.

    High Reliability: Without complex electronic components, manual switches can operate reliably in harsh environments.

    2. Low Cost

    Lower Cost: Manual transfer switches are cheaper than automatic transfer switches (ATS) and are suitable for projects with limited budgets.

    Low Maintenance Cost: Simple structure, low maintenance and repair costs.

    3. Flexible Operation

    Manual Control: Can fully control the power switching time, suitable for scenarios that need human intervention.

    Small-Scale Applications: Suitable for homes, small shops or places that do not require frequent power switching.

    4. High Security

    Prevent Misoperation: Manual operation requires manual confirmation, avoiding misoperation that may occur with automatic switching.

    Electrical Isolation: Ensures that the main power supply and standby power supply will not be connected at the same time, avoiding short circuit or equipment damage.

    5. Adaptability

    Variety of Power Sources: Can be used to switch between mains and generators, solar cells, UPS and other different power sources.

    Environmental Adaptability: Able to work in high temperature, high humidity and other harsh environments.

    6. Easy Installation

    Simple Setup: Usually small in size, simple installation, no complex wiring or debugging required.

    Small Space: Suitable for places with limited space.

    7. No External Power Supply Needed

    Independent Operation: Does not need external power supply or control signal, completely dependent on manual operation, suitable for unstable power environments.

    8. Handover Without Delay

    Instant Power Switch: Manual operation can complete power switch immediately, without waiting for detection or delay.

    9. Transparency

    Visible Operation: You can intuitively see the switch state to ensure that the switching process is clear and controllable.

    Main Technical Parameters

    Rated current (A) 63 100 125 160 200 225 250 315 400 500 630 800 1000 1250 1600 2000 2500 3150
    Rated insulation voltage 690V 800V 1000V
    Rated working voltage AC 400V
    Rated frequency 50Hz
    Rated short-circuit connecting capacity 17 40 105
    Mechanical life 1700 1400 800 500 300
    Electric life 300 200 100

    Structure and Mounting Dimensions

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    automatic-transfer-switch-2-5
    automatic-transfer-switch-3-4
    automatic-transfer-switch-4-6
    Frequently Asked Questions (FAQ)
    What is a manual transfer switch and how does it work?
    A manual transfer switch is a device that allows an operator to manually switch electrical loads from one power source to another, such as from the main utility supply to a backup generator. It uses a mechanical switching mechanism that requires a person to physically operate the switch, ensuring a deliberate and controlled transition between power sources.
    What is the rated current range of this manual transfer switch?
    This manual transfer switch covers a rated current range from 63A to 3150A, making it suitable for a wide variety of applications from small commercial installations to large industrial power systems.
    What is the difference between a manual transfer switch and an automatic transfer switch (ATS)?
    A manual transfer switch requires a person to physically operate the switch to change power sources, while an automatic transfer switch (ATS) detects power failure and switches automatically without human intervention. Manual transfer switches are lower in cost, simpler in structure, and more suitable for applications where immediate automatic switching is not critical.
    Where is the manual transfer switch commonly used?
    Manual transfer switches are commonly used in hospitals, banks, data centers, industrial facilities, small commercial buildings, and residential applications where reliable power continuity is required and where human supervision is available during power transitions.
    What voltage and frequency is this manual transfer switch compatible with?
    This manual transfer switch is designed for AC 50Hz systems with a rated working voltage of AC 400V. It supports rated insulation voltages of 690V, 800V, or 1000V depending on the current rating, and is applicable to systems with rated voltage below 660V (690V).
    Can the manual transfer switch be used with generators, solar panels, or UPS systems?
    Yes. The manual transfer switch is highly adaptable and can be used to switch between mains power and various backup power sources including diesel generators, solar power systems, and UPS (Uninterruptible Power Supply) units, making it versatile for both on-grid and off-grid power management scenarios.

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