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0102030405
LMS1-GN Automatic Transfer Switch ATS 250A - China Suppliers and Factory Quality Power Solutions
LMS1-LA Series Manual
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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Overview
LMS1-GN double power automatic transfer switch is suitable for automatic transfer between two power sources in emergency power supply systems with rated working voltage of 400V and below, rated frequency of 50Hz, and rated current of 16A to 3200A, ensuring continuous, safe and reliable operation of important loads such as fire fighting loads.
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Integrated Compact Design
Using dedicated integrated design, the intelligent controller is installed in the switch body to form a compact structure. The user only needs to put the main circuit into use, greatly reducing installation space, making wiring more convenient, and effectively improving installation efficiency.
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Comprehensive Fault Detection
Two three-phase power over-voltage, under-voltage, and lack-of-phase fault detection provide real-time monitoring of power status. Once abnormal power is detected, quick judgment and corresponding operations are performed to guarantee the fire-fighting equipment power supply security.
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Optional Generator Control
Optional with electric generator start and stop signal output function, convenient for use with electric generators. In case of common power failure, the generator can be started timely to provide backup power supply for fire fighting equipment, ensuring normal operation in emergencies.
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Reliable Interlock Protection
Equipped with reliable mechanical interlock device and electrical interlock protection, it completely eliminates the possibility of two circuit breakers closing simultaneously, avoiding serious faults such as short circuits caused by dual power supply at the same time, ensuring system security and stability.
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Intelligent Control
The Intelligent Controller uses a monolithic integrated circuit as the control core — succinct hardware, powerful functions, convenient expansion, and high reliability. It accurately detects power supply states, realizes intelligent dual-power conversion control, and allows free setting of parameters such as overvoltage/undervoltage thresholds and switching delay time.
Model Description
Main Technical Parameters
| Frame class | 100 | 160 | 250 | 630 | 1600 | 3200 | |
| Rated working current le (A) | 16, 20, 25, 32, 40, 50, 63, 80, 100 | 125, 160 | 200, 225, 250 | 315, 350, 400, 500, 630 | 800, 1000, 1250, 1600 | 2000, 2500, 3200 | |
| Rated insulation voltage (Ui) | 690V | 800V | 1000V | ||||
| Rated impulse withstand voltage (Uimp) | 8KV | 12KV | |||||
| Rated working voltage (Ue) | AC400V | ||||||
| Use category | AC-33iB | ||||||
| Rated short circuit making capacity (Icm) | 8KA | 17KA | 26KA | 67.5KA | |||
| Rated short time withstand current (Icw) | 5kA/30ms | 10kA/60ms | 12.6kA/60ms | 32kA/60ms | |||
| Transfer time | 2.5s | 1.2s / 2.5s | 1.2s | 1.8s | 2.4s | ||
| Rated short circuit pulse current | Front fuse 50KA | Front fuse 90KA | |||||
| Note: 630 frame product operation time is divided into 1.2s (series motor) and 2.5s (synchronous motor). | |||||||
1
Operation Button: The operation button is used to control the switch in the manual state and to switch between hand/automatic states. You can also use this button to change the working mode of the product.
2
Operating Handle: When using the operating handle to operate the switch, the power supply of the main circuit must be cut off or the operating button must be in the manual state.
3
Mechanical Padlock: During maintenance, first use the operating handle to place the switch in the "O off" state, then pull up the mechanical hang.
4
Position Indication: Marks the working position of the switch — I (common use), O (power off), II (standby).
Structure and Mounting Dimensions
Frequently Asked Questions
Q1
What is the ampere rating of the LMS1-GN automatic transfer switch?
A1
Rated currents are 16, 20, 25, 32, 40, 50, 63, 80, 100, 125, 160, 200, 225, 250, 315, 350, 400, 500, 630, 800, 1000, 1250, 1600, 2000, 2500, and 3200A.
Q2
How long is the dual power switching time?
A2
PC-level dual power transfer switch switching speed is relatively fast. CB-level dual power transfer switch switching time is generally in the range of 1–2.5 seconds depending on the frame size.
Q3
Can the deep-sea controller accommodate the GN Dual Power supply?
A3
Yes, the GN-type dual power supply can be adapted to a deep-sea controller to achieve remote control, monitoring, and conversion circuit power as needed.
Q4
What voltage and frequency is the LMS1-GN designed for?
A4
The LMS1-GN is designed for a rated working voltage of AC 400V and below, with a rated frequency of 50Hz, making it suitable for standard industrial and commercial power distribution systems.
Q5
Does the LMS1-GN support manual operation in addition to automatic switching?
A5
Yes. The switch features an operation button that allows the user to control it in manual state and to switch between hand and automatic modes. An operating handle is also provided for manual operation when the main circuit power is cut off.
Q6
What safety protections are built into the LMS1-GN transfer switch?
A6
The LMS1-GN includes both mechanical interlock and electrical interlock protection, preventing two circuit breakers from closing simultaneously. It also supports three-phase over-voltage, under-voltage, and phase-loss fault detection to ensure safe and stable power supply at all times.