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LMS1-N 250A Automatic Transfer Switch ATS - Reliable China Suppliers and Factory 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.
Model Description
Main Technical Parameters
| Model Name | LMS1-32N | LMS1-63N | LMS1-125N | LMS1-250N | LMS1-400N | LMS1-630N | ||||||||
| Rated insulation voltage(Ui) | AC 690V | |||||||||||||
| Rated working voltage(Ue) | AC 400V | |||||||||||||
| Rated working current(Ie) | 16,20,25,32 | 40,53,63 | 80,100,125 | 160,180,200,225,250 | 315,400 | 500,630 | ||||||||
| Rated concussion withstand voltage(Uimp) | 8kV | |||||||||||||
| Rated control current(A) | 5 | 7 | ||||||||||||
| Using category | AC-33B | |||||||||||||
| Kind of throw | Double throw | |||||||||||||
| Poles | 2P | 3P | 4P | 2P | 3P | 4P | 2P | 3P | 4P | 3P/4P | ||||
| Service life | Mechanical | 20000 | 17000 | |||||||||||
| Electric | 6000 | 6000 | ||||||||||||
lMS1-N type Ats electrical schematic diagram
Note: In the absence of a dedicated ATS controller, the two power sources in the controller circuit can not be simultaneously energized.
Structure and Mounting Dimensions
Frequently Asked Questions (FAQ)
What is the primary function of the LMS1-N Automatic Transfer Switch (ATS)?
The LMS1-N series ATS is designed to automatically transfer electrical load circuits between a primary power source and an alternate backup power source in the event of a power failure, ensuring continuous operation of critical electrical systems.
What utilization category does this ATS conform to?
It conforms to the AC-33B utilization category, meaning it is suitable for transferring motor loads or mixed loads including motors, resistive loads, and up to 30% incandescent lamp loads, with infrequent operations.
Can the two power sources in the controller circuit be energized at the same time?
No. In the absence of a dedicated ATS controller, the two power sources in the controller circuit must not be energized simultaneously to prevent potential short circuits or controller damage.
What are the available pole options for the LMS1-N series?
The poles vary by model: LMS1-32N, LMS1-63N, and LMS1-125N support 2P, 3P, and 4P options. The larger models (LMS1-250N, LMS1-400N, and LMS1-630N) support 3P and 4P configurations.
What is the mechanical and electrical lifespan of these switches?
For models LMS1-32N through LMS1-250N, the mechanical life is 20,000 cycles and electrical life is 6,000 cycles. For models LMS1-400N and LMS1-630N, the mechanical life is 17,000 cycles and the electrical life is 6,000 cycles.