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China LMS1-NA Series 125A Automatic Transfer Switch (ATS) - Reliable Dual Power Supply from Top Suppliers and Factory
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.
LMS1-NA Series Auto Transfer Switch is mainly used for electric distribution networks or motor networks with a rated voltage of 380V, 50Hz, and rated current from 16A to 630A. It enables seamless transfer between main power and backup power systems, including power grid to power grid and power grid to genset configurations.
Model Description
Main Technical Parameters
| Rated Working Current | 16 / 20 / 25 / 32A | 32 / 40 / 50 / 63 / 80 / 100 / 125A | 160 / 180 / 200 / 250A | 250 / 315 / 350 / 400A | 500 / 630A | |
| Rated Control Power Supply Voltage (V) | AC220V | AC220V | AC220V | AC220V | AC220V | |
| Rated Control Supply Current (A) | 3.5 | 3.5 | 7 | 7 | 7 | |
| Rated Short-Time Withstand Current (KA) | 10 | 10 | 10 | 10 | 10 | |
| Service Life | Mechanical | 20,000 | 20,000 | 20,000 | 20,000 | 20,000 |
| Electrical | 6,000 | 6,000 | 6,000 | 6,000 | 6,000 | |
| Operating Cycle (1 minute / times) | 10 | 10 | 12 | 15 | 15 | |
Connection Types:
a: Power grids to Power grids b: Power grids to Generator
①NA — Neutral terminal of normal power for 3-pole ATS
②LP1 — Normal Power supply indicator light
③LP2 — Normal Power indicator light
④LP3 — Standby Power indicator light
⑤LP4 — Standby Power supply indicator light
⑥NB — Neutral terminal of standby power for 3-pole ATS
Structure and Mounting Dimensions
Production Process
Frequently Asked Questions
Q What is the rated voltage and frequency of the LMS1-NA Series ATS?
The LMS1-NA Series Automatic Transfer Switch is designed for use with a rated voltage of 380V and a frequency of 50Hz, making it suitable for standard industrial and commercial power distribution systems.
Q What current ratings are available for the LMS1-NA Series ATS?
The LMS1-NA Series is available in a wide range of current ratings, from 16A up to 630A, including 16, 20, 25, 32, 40, 50, 63, 80, 100, 125, 160, 180, 200, 250, 315, 350, 400, 500, and 630A. This allows it to cover a broad range of application requirements.
Q What types of power transfer does the LMS1-NA ATS support?
The LMS1-NA ATS supports two types of power transfer configurations: power grid to power grid (a), and power grid to generator (b). This makes it versatile for both utility redundancy and backup generator applications.
Q What is the mechanical and electrical service life of the LMS1-NA ATS?
The LMS1-NA Series ATS offers a mechanical service life of 20,000 operations and an electrical service life of 6,000 operations across all current ratings, ensuring long-term reliability in demanding environments.
Q What does the rated short-time withstand current specification mean for this ATS?
The rated short-time withstand current is 10KA for all current ratings of the LMS1-NA Series. This means the switch can safely withstand a fault current of 10,000 amperes for a short duration without damage, providing protection for the connected electrical system.
Q What do the indicator lights (LP1–LP4) on the LMS1-NA ATS represent?
The LMS1-NA ATS is equipped with four indicator lights: LP1 indicates the Normal Power supply status, LP2 shows the Normal Power status, LP3 indicates the Standby Power status, and LP4 shows the Standby Power supply status. These lights provide clear visual feedback on the current operating condition of the transfer switch.