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China LMS1-NA Series Automatic Transfer Switch ATS - Reliable Dual Power Supply Solutions from Trusted Suppliers & 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 rated voltage 380V, 50Hz, rated current 16A to 630A, enabling automatic transfer between main power and backup power systems, including power grid to power grid and power grid to genset applications.
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 | 20000 | 20000 | 20000 | 20000 | 20000 |
| Electrical | 6000 | 6000 | 6000 | 6000 | 6000 | |
| Operating cycle (1 minute / times) | 10 | 10 | 12 | 15 | 15 | |
▶ Wiring Diagram Notes
a: Power grids to Power grids b: Power grids to Generator
①
NA — Neutral terminal of normal power for 3-pole ATS
②
LP1 — Normal Power supply indicator light
③
LP2 — Normal Power indicator light
④
LP3 — Standby Power indicator light
⑤
LP4 — Standby Power supply indicator light
⑥
NB — Neutral terminal of standby power for 3-pole ATS
Structure and Mounting Dimensions
Production Process
Frequently Asked Questions (FAQ)
Q What is the rated voltage and frequency of the LMS1-NA Series ATS?
The LMS1-NA Series Automatic Transfer Switch is designed for a rated voltage of 380V at 50Hz, making it suitable for standard industrial and commercial power distribution systems.
Q What current range does the LMS1-NA Series ATS cover?
The LMS1-NA Series covers a wide range of rated currents from 16A to 630A, including models at 16A, 20A, 25A, 32A, 40A, 50A, 63A, 80A, 100A, 125A, 160A, 200A, 250A, 315A, 400A, 500A, and 630A.
Q What types of power transfer does this ATS support?
The LMS1-NA Series supports two transfer modes: Power Grid to Power Grid (a) and Power Grid to Generator (b), providing flexible backup power solutions for various applications.
Q What is the mechanical and electrical service life of the LMS1-NA ATS?
The LMS1-NA Series 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.
Q What is the rated control power supply voltage for the LMS1-NA ATS?
All models in the LMS1-NA Series use a rated control power supply voltage of AC220V, with control supply currents of either 3.5A (for models up to 125A) or 7A (for models 160A and above).
Q What does the rated short-time withstand current specification mean for this ATS?
The rated short-time withstand current is 10KA for all LMS1-NA Series models. This indicates the maximum fault current the switch can withstand for a short duration without damage, ensuring safety and reliability during fault conditions in the distribution network.