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Wifi Ats 125A, Automatic Transfer Switch 2P 3P 4P LMQ4-125W
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WiFi ATS 125A Automatic Transfer Switch 2P 3P 4P LMQ4-125W - Reliable China Suppliers and Factory for Smart Home Power 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.
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 |
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| 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
- 35 mm 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.
The items included are evaluated for warranty
Structure and Mounting
Frequently Asked Questions
What is the LMQ4-125W WiFi ATS used for?
The LMQ4-125W is an Automatic Transfer Switch (ATS) designed to automatically switch between a main power grid and a backup generator (solar, wind, or diesel) when the primary power source fails or is restored.
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 to suit different electrical system requirements.
How fast does the LMQ4-125W transfer between power sources?
The contact transfer time, operating transfer time, return transfer time, and off-time are all less than 50ms, with a transmission time as fast as 8 milliseconds, ensuring minimal power interruption.
Can the LMQ4-125W be operated manually?
Yes. The switch supports both automatic and manual operation modes. In manual mode, the user can switch the power supply source directly. In automatic mode, the device handles switching without any user intervention.
What is the rated short-circuit current capacity of the LMQ4-125W?
The rated conditional short-circuit current (Iq) is 50kA, and the rated impulse withstand voltage is 8kV, ensuring reliable performance under fault conditions when used with the specified SCPD fuse RT16-00-63A.
What operating temperature range does the LMQ4-125W support?
The LMQ4-125W operates within a temperature range of -5°C to +40°C, with the average temperature not exceeding 35°C over any 24-hour period, making it suitable for most indoor electrical panel environments.