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LMS1-Q 3200A Automatic Transfer Switch ATS from China Suppliers and Factory - CE Certified
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.
The product consists of switch ontology and intelligent split controller. The switch body is mainly composed of two parts, contact system and operating mechanism. Each pole contact system is composed of multiple relatively independent double-cast cutting contacts, which can better ensure the reliability of contact. The common side power contact and the standby side power contact to achieve mechanical interlock through the connecting rod. The operating mechanism is driven by the excitation coil and controlled by the logic of the internal circuit to form an electrical interlock with the contact system. Through the above mechanical and electrical double interlock, only one side of the power supply can be closed under any circumstances, so as to ensure the reliability and safety of the power supply.
Model Description
Main Technical Parameters
| Model Name | LMS1-3200Q | LMS1-6300Q | |
| Rated isolation voltage Ui(V) | AC690V | ||
| Rated impulse withstand voltage Uimp(kV) | 8 | ||
| Rated working voltage Ue(V) | 400(50Hz) | ||
| Rated control voltage Us(V) | 220 | ||
| Rated working current Ie(A) | 630 800 1000 1250 | 1600 2000 2500 3200 | 4000 5000 6300 |
| Operating current (A) | 8A(AC220V) | 10A(AC220V) | 18A(220V) |
| Using category | AC-33iB | ||
| Rated limited short circuit current Iq(kA) | 120 | ||
| Switching action time (ms) | ≤600 | ||
| Contact action time (ms) | 60 | ||
| Mechanical lifetime (circle times) | 2500 | 1500 | 1500 |
| Electrical lifetime (circle times) | 500 | ||
Q Type (630A – 6300A)
- Both closing and disconnecting are operated by an electromagnetic coil.
- Simple structure and convenient maintenance.
- Large contact capacity, stable and reliable new movable contact, strong overload capacity.
- The redundant conductive part is eliminated, structure is simple and has a long life.
- Independent double-arc extinguishing chamber structure is adopted on the main and standby power sides to prevent short circuit caused by arc fundamentally.
Structure and Mounting Dimensions
Frequently Asked Questions
What is the rated working voltage of the LMS1-Q type Automatic Transfer Switch?
The rated working voltage (Ue) of the LMS1-Q type ATS is 400V at 50Hz, making it suitable for standard low-voltage power distribution systems.
What current range does the LMS1-Q type ATS cover?
The LMS1-Q type ATS covers a wide rated working current range from 630A up to 6300A, available across models LMS1-3200Q and LMS1-6300Q.
How does the LMS1-Q type ATS prevent simultaneous closure of both power supplies?
The product uses both mechanical interlock (via a connecting rod between the common and standby power contacts) and electrical interlock (through the excitation coil and internal circuit logic), ensuring that only one side of the power supply can be closed under any circumstances.
What is the switching action time of the LMS1-Q type Automatic Transfer Switch?
The switching action time is ≤600ms, while the contact action time is 60ms, enabling fast and reliable power transfer between the main and standby supplies.
What is the mechanical and electrical lifetime of the LMS1-Q type ATS?
The mechanical lifetime is 2500 operating cycles for the LMS1-3200Q (630A–1250A range) and 1500 cycles for higher current ratings. The electrical lifetime is 500 operating cycles across all models.
What arc protection features does the Q type ATS provide?
The Q type ATS adopts an independent double-arc extinguishing chamber structure on both the main and standby power sides. This design fundamentally prevents short circuits caused by arc discharge, greatly improving operational safety and reliability.