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China LMQ2Y Series Automatic Transfer Switch CB Class - 100A-800A Suppliers & Factory Certified Products
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.
LMQ2Y series double power supply belongs to CB class product. There are LMQ2Y-100, LMQ2Y-400 and other models. It can control the three-phase voltage, and has the functions of short circuit protection, overload protection and intelligent alarm. The products meet the standards of CCC, GB/T14048.11, IEC60947.6.1.
Model Description
Main Technical Parameters
| Product Name | LMQ2Y | ||
| Rated Current | 100/225 | 400 | 630/800 |
| Rated working voltage | AC400V | ||
| Over-voltage transfer setting value | AC 200-300V (adjustable) | ||
| Under-voltage transfer setting value | AC 200-300V (adjustable) | ||
| Contacts conversion time | <4s | ||
| Disconnect delay | 0.5s–30s continuous adjustable | ||
| Closing delay | 0.5s–30s continuous adjustable | ||
| Mechanical life | 5000 | 3000 | 2500 |
| Electrical life | 1000 | 1000 | 500 |
Controller Functions
| Controller | Y Type Controller | YW2 Type Controller | YW3 Type Controller |
| Working power supply | AC 160–250V 50/60Hz | DC 12V (Provided by the inside of Y type controller) | |
| Installation | Integral type | Split type | |
| Position | 3 Positions | ||
| Mode of operation | Auto, manual and electro-manual operation | ||
| Voltage monitoring function | 3 phase over-voltage, under-voltage and phase loss monitoring | ||
| Frequency monitoring function | Frequency monitoring | ||
| Generator control | A set of 3A relay dry contact | ||
| Display | LED display | LCD display | |
| Conversion time delay | 0.5s–60s continuous adjustable | ||
| Return time delay | 0.5s–60s continuous adjustable | ||
Structure and Mounting Dimensions
| Product Dimensions | A | D | B | C | H1 | H2 | ||
| 3P | 4P | 3P | 4P | |||||
| LMQ2Y-63 | 380 | 405 | 250 | 340 | 365 | 230 | <160 | 25 |
| LMQ2Y-100 | 405 | 435 | 250 | 365 | 395 | 230 | <170 | 25 |
| LMQ2Y-225 | 450 | 480 | 250 | 410 | 440 | 230 | <190 | 25 |
| LMQ2Y-400 | 570 | 620 | 330 | 510 | 560 | 300 | <200 | 25 |
| LMQ2Y-630 | 680 | 740 | 330 | 620 | 680 | 300 | <250 | 25 |
| LMQ2Y-800 | 750 | 820 | 330 | 690 | 760 | 300 | <250 | 25 |
FAQ
Q
How to ensure high reliability of a dual power supply system?
Use high-quality, certified equipment and materials. Maintain and update hardware regularly to prevent aging problems.
Q
What is the difference between a dual power supply system and an uninterruptible power supply (UPS)?
UPS is part of a dual power system and usually provides temporary power as a backup power source. Dual power systems can include UPS and other backup power sources (such as generators or batteries).
Q
How to configure a dual power supply system?
Determine the type of backup power and power requirements. Set the optimal switching logic (e.g. time, voltage) between standby power and main power. Ensure that the equipment can identify and prioritize the use of standby power.
Q
What certifications does the LMQ2Y series comply with?
The LMQ2Y series meets the standards of CCC, GB/T14048.11, and IEC60947.6.1, ensuring compliance with both domestic and international safety and performance requirements.
Q
What controller types are available for the LMQ2Y series?
The LMQ2Y series supports three controller types: Y Type (integral installation with LED display), YW2 Type (split installation with LED display), and YW3 Type (split installation with LCD display), all supporting auto, manual, and electro-manual operation modes.
Q
What protection functions does the LMQ2Y series provide?
The LMQ2Y series provides short circuit protection, overload protection, intelligent alarm, as well as 3-phase over-voltage, under-voltage, phase loss monitoring, and frequency monitoring to ensure safe and stable operation.