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China LMS1-NJT Series Automatic Transfer Switch ATS 63A - Reliable Suppliers and Factory for Electrical 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.
LMS1-NJT series of household automatic transfer switch apparatus is the latest micro household power transfer switch developed and produced by our company. The switch belongs to PC CLASS lightweight transfer switch, Two positions structure. It is suitable for AC 50/60Hz and AC power distribution system of rated current 10A–63A. It is mainly used to detect whether the user's power supply is normal. When one power supply is abnormal, switch to the other power supply immediately. Mechanical and electrical combination locks are used inside the switch to avoid simultaneous switching on of two lines, so as to ensure the continuity, reliability and safety of power supply.
Model Description
Normal Working Conditions
- 1The operating environment temperature ranges from -5°C to +40°C, and the average temperature within 24 hours cannot exceed +35°C. The storage environment temperature ranges from -25°C to +55°C, and can reach +70°C within 24 hours.
- 2The altitude of the installation site does not exceed 2000m.
- 3The relative humidity of the air at the installation site does not exceed 50% when the ambient air temperature is +40°C. The relative humidity can be higher at a lower temperature. For example, when the mean minimum temperature of the wettest month is +20°C, the mean monthly maximum relative humidity of that month can reach 90%. Appropriate measures should be taken to prevent condensation due to temperature changes.
- 4Pollution Level 3 (conductive pollution, or dry non-conductive pollution becomes conductive due to condensation). The ATS can be installed vertically or horizontally in the cabinet. If you have special installation requirements, please contact our company.
- 5The protection level of the product shell is IP30.
- 6Overvoltage class: III main circuit; Control and auxiliary circuits class II.
Main Technical Parameters
| Rank Current | 63 | |||||||
| Rated Work Current le(A) | 10A | 16A | 20A | 25A | 32A | 40A | 50A | 63A |
| Rated Insulation Voltage (Ui) | 690V | |||||||
| Rated Impulse Withstand Voltage (Uimp) | 8kV | |||||||
| Rated Work Voltage (Ue) | AC220V, AC110V | |||||||
| Rated Frequency | 50/60Hz | |||||||
| Transition Preparation Time | ≤60ms | |||||||
| Mechanical Life | ≥6000 Times | |||||||
| Electrical Life | ≥1500 Times | |||||||
| Using the Categories | AC-31B | |||||||
Structure and Mounting Dimensions
ⓘ Note:
- Tunnel terminal
- Terminal connection area: suitable for (1~25) mm²
- The wire connection screw is M5, and the torque is 3.0 N.m
Frequently Asked Questions (FAQ)
Q What is the LMS1-NJT series automatic transfer switch used for?
The LMS1-NJT series is a household automatic transfer switch (ATS) designed to monitor the user's power supply. When one power source becomes abnormal or fails, it automatically switches to the backup power supply to ensure continuous, reliable, and safe electricity delivery.
Q What is the rated current range for the LMS1-NJT series?
The LMS1-NJT series supports rated working currents of 10A, 16A, 20A, 25A, 32A, 40A, 50A, and 63A, making it suitable for a wide range of household and light commercial AC power distribution systems.
Q How does the switch prevent both power lines from being connected simultaneously?
The LMS1-NJT uses a mechanical and electrical combination locking mechanism inside the switch. This dual-lock design ensures that both power lines can never be switched on at the same time, eliminating the risk of backfeed and ensuring user safety.
Q What are the installation environment requirements for this ATS?
The switch should be installed at a location with an ambient temperature between -5°C and +40°C, an altitude not exceeding 2000m, and a relative humidity not exceeding 50% at +40°C. The product has an IP30 protection rating and supports both vertical and horizontal installation inside a cabinet.
Q How long is the mechanical and electrical service life of the LMS1-NJT switch?
The LMS1-NJT series offers a mechanical life of ≥6,000 operations and an electrical life of ≥1,500 operations, ensuring long-term reliable performance in household power transfer applications.
Q What wire sizes are compatible with the terminal connections?
The LMS1-NJT uses tunnel-type terminals suitable for wire cross-sections from 1 mm² to 25 mm². The wire connection screw is M5, and the recommended tightening torque is 3.0 N.m to ensure a secure and safe electrical connection.