LSP delivers reliable Automatic Transfer Switch solutions, flexible customization capabilities, and strong manufacturing capabilities to help global customers build stable backup power systems.
Automatic Transfer Switch DIN Rail models are designed for easy installation in standard electrical distribution panels. Featuring a compact structure and 35mm DIN rail mounting system, these ATS units provide efficient space utilization and simplified wiring for residential, commercial, and light industrial applications.
Key Advantages:
LSP is a professional Automatic Transfer Switch manufacturer with 10+ years of ATS production experience. Serving 1,200+ customers across 35+ countries.
LSP provides reliable ATS solutions backed by experienced R&D engineers, professional after-sales support, and long-life switching performance of up to 10,000 mechanical operations.
LSP‘s Automatic Transfer Switch (ATS) is a PC-Class, infrequent change-over switch featuring a dual power supply design: power supply (I) as the main power and power supply (II) as the standby power. These Automatic Transfer Switch (ATS) designed for residential, commercial, industrial applications.
It supports dual power inputs from a main and a backup source. In the event of a main power failure or abnormality, the device automatically transfers to the backup power within 100 milliseconds, ensuring continuous and reliable power supply. It is suitable for low-voltage AC systems rated from 10A to 630A at 50/60Hz, features DIN rail mounting, and complies with IEC 60947-6-1:2021 standards.
LSP’s Autmatic Transfer Switch (ATS) helps you minimize downtime, protect valuable assets, and ensure continuous business operations.
LSP’s automatic transfer switch solutions support flexible multi-source power management and real-time voltage monitoring, delivering reliable and intelligent power transfer for your critical applications.
Compared with traditional dual power switching, LSP ATS supports up to three external power inputs, providing greater flexibility in power configuration.
With an integrated digital display, you can monitor voltage data clearly in real time, improving system visibility and delivering more reliable and efficient power transfer and management solutions for various applications.
LSP Automatic Transfer Switch (ATS) Workshop is equipped with advanced production equipment, precise testing instruments, and a strict quality control system. From component assembly to final performance testing, every ATS undergoes comprehensive inspection to ensure reliable power transfer, stable operation, and long service life.
From product customization to stable mass production, LSP helps you develop reliable Automatic Transfer Switch products with professional manufacturing support.
Explore LSP Automatic Transfer Switch specifications and factory capabilities to understand product performance, customization options, and reliable manufacturing support for your power backup projects.
| Technical Parameter | L2R Series | L2S Series | L2H Series | M2R Series | N2M125 Series | N2M250 Series |
| Single-Phase Rated Voltage (AC) | 110 V / 230 V | 110 V / 230 V | 110 V / 230 V | 110 V / 230 V | 220 V / 230 V | 230 V |
| Rated Operational Voltage (AC) | 200 V (110V Series) / 400 V (220V Series) | 200 V (110V Series) / 400 V (220V Series) | 200 V (110V Series) / 400 V (220V Series) | 200 V (110V Series) / 400 V (220V Series) | 400 V | 400 V |
| Case Grade | 32 A | 32 A | 63 A | 100 A | 125 A | 250 A |
| Rated Operational Current | 10 A, 20 A, 32 A | 10 A, 20 A, 32 A | 40 A, 50 A, 63 A | 40 A, 63 A, 100 A | 80 A, 125 A | 160 A, 250 A |
| Rated Insulation Voltage (Ui) | 690 V | 690 V | 690 V | 690 V | 690 V | 690 V |
| Rated Impulse Withstand Voltage (Uimp) | 8 kV | 8 kV | 8 kV | 8 kV | 8 kV | 8 kV |
| Rated Insulation Voltage (Ui) | 690 V | 690 V | 690 V | 690 V | 690 V | 690 V |
| Rated Impulse Withstand Voltage (Uimp) | 8 kV | 8 kV | 8 kV | 8 kV | 4 kV | 4 kV |
| Automatic Switching Time | ≤ 100 ms | 20 ms | 20 ms | ≤ 100 ms | ≤ 900 ms | ≤ 900 ms |
| Pole Number | 2P, 4P | 2P, 4P | 2P, 4P | 2P, 3P, 4P | 3P, 4P | 3P |
| Usage Category | AC-31B | AC-31B | AC-31B | 40A/63A: AC-33iB 100A: AC-31B | AC-33B | AC-33B |
| TSE Class | PC-Class | PC-Class | PC-Class | PC-Class | PC-Class | PC-Class |
Yes, we welcome sample orders to test and check the quality.
Yes, of course, we also do OEM to print the client’s brand on the product.
We provide 1 years limited warranty for the products. Please feel assured.
Yes, we can customize it according to the client’s needs.
A Dual Power Automatic Transfer Switch (ATS) is an electrical device designed to automatically switch the power supply between two independent power sources, such as a main utility power and a backup generator. When the primary power source fails, the ATS instantly transfers the load to the secondary source to ensure continuous and reliable power supply.
Once the main power is restored, the switch automatically returns the load to the original source. Dual power ATS systems are widely used in industrial facilities, commercial buildings, hospitals, data centers, and other critical applications where uninterrupted power is essential.
An Automatic Transfer Switch (ATS) works by continuously monitoring the utility (main) power and automatically transferring the electrical load to a backup power source, such as a generator or UPS, when a power outage or abnormal condition occurs. Once the utility power is restored and stable, the ATS switches the load back to the main power.
Detects power loss or abnormal conditions in the main supply and automatically switches the load to a backup source, then restores it when utility power is stable.
Continuously monitors voltage, frequency, and phase to ensure safe and proper switching.
Prevents backfeeding and protects electrical systems from surges, spikes, or faults.
Allows operators to manually control switching for testing or maintenance.
An Open Transition ATS disconnects the load from the main utility before connecting to the backup generator.
A Closed Transition ATS briefly parallels the utility and generator before transferring the load, ensuring continuous power supply.
A Delayed Transition ATS introduces a programmable delay before switching to the backup power source.
A Soft Load or Bypass Isolation ATS allows maintenance or load switching without interrupting the electrical supply.
A Closed-Coupled ATS integrates directly with the generator control panel, providing a compact installation and reducing wiring complexity.
A Manual-Operated ATS requires human intervention to switch between utility and backup power.
Selecting the appropriate Dual Power Automatic Transfer Switch (ATS) is critical to ensuring continuous power supply, system reliability, and operational safety. A properly selected auto transfer switch helps prevent power interruption, equipment damage, and operational downtime in critical applications.
When choosing a Dual Power ATS, several key factors should be considered:
Proper selection of a Dual Power Automatic Transfer Switch improves system stability, enhances electrical protection, and ensures long-term reliable performance in both industrial and critical power applications.
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