LMS1-L Series 630A Automatic Transfer Switch ATS - Reliable China Suppliers and Factory Solutions

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. ​

LMS1-L can detect the status of two power supply (main power supply and standby power supply), and automatically switch to the standby power supply in the case of main power failure, too low voltage, too high voltage, abnormal frequency, etc., to ensure the continuity of the power load, switching time of 30 milliseconds to ensure that electrical equipment will not stop working due to power outages. When the main power supply return to normal, can automatically switch back to the main power supply.

Model Description

⚠ Notice:

1. Separated type ATS can be chose Y-701 (LED) or Y-702 (LCD) Controller.

2. ATS without output signal to start generator, Y-701 and Y-702 controller with it.

Working Environment

• ■ Ambient air temperature: Ambient temperature -5℃ to +40℃, and the 24-hour average temperature value does not exceed +35°C. Users whose ambient air temperature is higher than +40°C or lower than -5°C should consult with the manufacturer.
• ■ The highest temperature of atmospheric humidity: When the degree is +40℃, the relative humidity does not exceed 50%, and the maximum relative humidity per month 90%, resistant to the influence of humid air on the sea, and can allow higher relative humidity at lower temperatures; special measures should be taken for the occasional condensation caused by temperature changes.
• ■ Installation altitude: The altitude of the installation site does not exceed 2000 meters. When used at higher altitudes, the dielectric strength and cooling effect of the air should be considered to be reduced, please consult with the manufacturer.
• ■ Pollution level: The environmental pollution level of the installation site is level 3.
• ■ Installation category: IV.
• ■ Installation inclination: The product is fixedly installed in the cabinet, the maximum inclination is ±22.5°.
• ■ Arcing distance: The arcing distance is 30mm when AC 400V. The arcing distance when AC 690V is 60mm.

Main Technical Parameters

Model Name			LMS1-L
Insulation voltage			AC 690V
Rated voltage			AC 400V
Rated current			20A~125A	160A~250A	315A~630A
Rated impulse withstand voltage			8kV
Kind of throw			Double throw
Wiring method			Front board
Short-time resistance current			10kA
Through to breaking capacity			17kA
Transfer time	A Power	Input	80ms	80ms	100ms
		Break	30ms	30ms	30ms
	B Power	Input	100ms	100ms	120ms
		Break	30ms	30ms	30ms
Electrical Life			1000		1000
Mechanical Life			5000		4000
Use type			AC-33ib
Accessaries			Manual handle

Structure and Mounting Dimensions

Frequently Asked Questions

QWhat is the switching time of the LMS1-L Automatic Transfer Switch?

The LMS1-L ATS has a break time of 30ms across all current ranges, ensuring that electrical equipment does not stop working due to power outages. The total transfer time varies by current range: 20A–125A and 160A–250A models complete the A Power input in 80ms, while 315A–630A models complete it in 100ms.

QWhat conditions trigger an automatic switchover to the standby power supply?

The LMS1-L will automatically switch to the standby power supply when it detects main power failure, voltage that is too low or too high, or abnormal frequency. Once the main power supply returns to normal, the unit will automatically switch back.

QWhat current ratings are available for the LMS1-L ATS?

The LMS1-L is available in three current ranges: 20A–125A, 160A–250A, and 315A–630A, all rated at AC 400V with an insulation voltage of AC 690V.

QCan the LMS1-L ATS send a signal to start a generator?

The standard LMS1-L ATS does not include an output signal to start a generator. However, the optional Y-701 (LED) and Y-702 (LCD) controllers, available for the separated type ATS, do include this generator start signal output function.

QWhat is the mechanical and electrical service life of the LMS1-L?

For the 20A–250A range, the mechanical life is 5,000 operations and the electrical life is 1,000 operations. For the 315A–630A range, the mechanical life is 4,000 operations and the electrical life is 1,000 operations.

QWhat are the installation environment requirements for the LMS1-L ATS?

The LMS1-L should be installed at an altitude not exceeding 2,000 meters, in an ambient temperature range of -5℃ to +40℃, with a maximum relative humidity of 90% per month. The installation site pollution level should be level 3, and the product supports a maximum installation inclination of ±22.5°.