中文
Wifi Ats 125A, Automatic Transfer Switch 2P 3P 4P LMQ4-125W
LMS1-GA series Automtic transfer Switch Ats 100A
LMS1-NJT Series Automatic Transfer Switch Ats 63A
LMS1-MA Type PC Class Automatic Transfer Switch Ats 63A
Ats 100A,Automatic Transfer Switch 2P 3P 4P LMQ4-100X
LMS1-LA Series Automatic Transfer Switch ATS 100A
LMS1-GN Automatic Transfer Switch ATS 250A
LMS1-NA Series Automatic Transfer Switch ATS 630A
LMS1-LA3 Series PC Automatic transfer switch Ats 630A
LMS1-L Series Automatic Transfer Switch Ats 630A
LMS1-SA Series PC Automatic transfer switch
LMS1-SN Series Automatic Transfer Switch Ats 400A
LMS1-Q Type Automatic Transfer Switch Ats 3200A
LMS1-SN Automatic Transfer Switch Ats
LMS1-J Series Automatic Transfer Switch Ats 63A
LMQ2Y Series Automatic Transfer Switch CB Class
LMQ2CB Series Automatic Transfer Switch
LMQ3-W1 Automatic Transfor Switch Ats 63A
LMQ3-W1 Automatic Transfor Switch ats 630A
LMQ4-63M 63A Automtic transfer Switch 2P 3P 4P
LMGLZ1 Manual Transfer Switch (100~630A)
LMGLZ Manual Transfer Switch (100~630A) Changeover Switch
Y-700 Automatic Transfer Switch Controller
Y-701 Automatic transfer switch controller
Y-702 Automatic Transfer Switch Controller
Y-703 Automatic Transfer Switch Controller
W2、W3 Automatic Transfer Switch Plug-In Led Digital Controller
Customization-Automatic Transfer Switch Cabinet 100A Ats
Dual Power Supply Control Cabinet - Automatic Transfer Switch
Ats Cabinet - Automatic Transfer Switch
0102030405
China Wifi ATS 125A Automatic Transfer Switch 2P 3P 4P LMQ4-125W - Reliable Factory Suppliers for Smart Power Management
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.
Main Technical Parameters
| Model | LMQ4-125W | ||||||||||
| Rated current le A | 10 | 16 | 20 | 25 | 32 | 40 | 50 | 63 | 80 | 100 | 125 |
| Insulation voltage Ui | AC 690V | ||||||||||
| Rated voltage Ue | 2P: AC230V 3P: AC400V 4P: AC400V |
||||||||||
| Grade | Grade PC: able to make and withstand, not to break short-circuit current | ||||||||||
| Use category | AC-33iB | ||||||||||
| Pole | 2P | 3P | 4P | ||||||||
| Weight (kg) | 0.62 | 0.72 | 0.91 | ||||||||
| Life | Electrical: 2000 times; Mechanical: 5000 times | ||||||||||
| Rated conditional short-circuit current lq | 50kA | ||||||||||
| SCPD (fuse) | RT16-00-63A | ||||||||||
| Rated impulse withstand voltage | 8kV | ||||||||||
| Control circuit | Rated control voltage Us: AC220V, 50Hz — Correct working condition: 85%Us–110%Us | ||||||||||
| Auxiliary circuit | AC220V / AC110V 50/60Hz | ||||||||||
| Contact transfer time | <50ms | ||||||||||
| Operating transfer time | <50ms | ||||||||||
| Return transfer time | <50ms | ||||||||||
| Off-time | <50ms | ||||||||||
| Temperature range | -5°C ~ +40°C, average temperature not more than 35°C in 24 hours | ||||||||||
Working Conditions
WiFi ATS — Automatic Transfer Switch 2P 3P 4P 125A LMQ4-125W
Automatically switch between grid and generator (solar, wind or diesel generator).
In the absence of power, the switch automatically switches to the generator (Source B). Once the power is restored, the switch automatically switches back to the grid (Source A).
✦ Characteristics
⚡
Easy to install and operate
🚀
Ultrafast transmission system
🔧
35mm DIN rail mount (standard circuit breaker box)
💡
Switch indicating the source of power supply
🔄
Automatic and manual switches
✦ Technical Specifications
Model NameLMQ4-125W/4-125A
Operating Voltage220V
Pole Number2P, 3P, 4P
Frequency50–60 Hz
Maximum Load125A
Transmission Time8 milliseconds
Life Expectancy50,000 operations
ATSE ClassPC
Operating Temperature-5°C ~ +40°C
Circuit FailureUIMP 8kV
⚠️ Important Notes
- The switch cannot switch the generator directly.
- When the switch is in the "Automatic" position, the device will automatically switch between normal and standby power.
- If the main power supply is insufficient, the switch will automatically switch to "Standby" mode; once the main power supply is restored, the switch will automatically recover.
- In the manual option, you can change the power supply manually.
Structure and Mounting
❓ Frequently Asked Questions (FAQ)
Q
What is the LMQ4-125W WiFi ATS and what is it used for?
The LMQ4-125W is a WiFi-enabled Automatic Transfer Switch (ATS) designed to automatically switch electrical loads between the main grid power supply and a backup generator (solar, wind, or diesel). It ensures uninterrupted power supply by detecting power loss and switching sources within milliseconds.
Q
What pole configurations are available for the LMQ4-125W?
The LMQ4-125W is available in 2P (2-pole, AC230V), 3P (3-pole, AC400V), and 4P (4-pole, AC400V) configurations, making it suitable for single-phase and three-phase electrical systems.
Q
How fast does the LMQ4-125W transfer between power sources?
The LMQ4-125W features an ultrafast transmission system with a contact transfer time, operating transfer time, return transfer time, and off-time all under 50ms (as low as 8 milliseconds transmission time), minimizing disruption to connected equipment.
Q
Can the LMQ4-125W be operated manually?
Yes. The LMQ4-125W supports both automatic and manual operation modes. In manual mode, the user can directly switch between the main power supply and the backup generator as needed.
Q
What is the rated short-circuit current and insulation voltage of this switch?
The LMQ4-125W has a rated conditional short-circuit current (Iq) of 50kA, an insulation voltage (Ui) of AC 690V, and a rated impulse withstand voltage of 8kV, ensuring robust performance in demanding electrical environments.
Q
How is the LMQ4-125W installed and what are the operating temperature requirements?
The LMQ4-125W is designed for easy installation on a standard 35mm DIN rail, compatible with standard circuit breaker distribution boxes. It operates within a temperature range of -5°C to +40°C, with an average temperature not exceeding 35°C over any 24-hour period.