Specifications:

Rated current: 63A, 100A, or 125A
Number of poles: 4 (allows monitoring of all three phases and the neutral wire)
Mounting method: DIN rail, ensuring simple and secure integration of the device in electrical panels
Switching type: Automatic double power switching (automation activates when the main power supply is interrupted)
Protection function: Ensures uninterrupted power supply and protects devices from voltage drops or disturbances
Operating temperature: -25°C to +55°C, making it suitable for use in both indoor and partially protected outdoor environments
Features:

Automatic switching: When the main power supply is interrupted or experiences a disturbance, the switch automatically switches the system to a backup power source, ensuring uninterrupted electricity supply.
Uninterrupted power assurance: Ideal for devices and systems whose operation cannot be interrupted, such as emergency lighting, data centers, healthcare equipment.
Safe DIN rail mounting: Mounted directly on the DIN rail in electrical panels, making installation simple and convenient.
Multiple current options: Rated current options of 63A, 100A, or 125A provide adaptability for various system loads.
Applications:

Emergency power supply systems: Suitable for systems requiring uninterrupted power supply, such as in hospitals, IT server rooms, shopping centers, and emergency lighting systems.
Households: Ensures continuous electricity supply for homes with backup energy sources, such as generators or solar power systems.
Industry: Used in industrial facilities and establishments where critical processes must operate continuously.
Pros:

Automatic operation: Fully automated switching allows easy assurance of uninterrupted power supply without human intervention.
DIN rail mounting: Compact size and easy installation on DIN rail ensure the device can be conveniently integrated into electrical panels.
Protection for sensitive devices: Ensures stable power supply, protecting sensitive devices from interruptions and voltage fluctuations.
Wide range of rated current options: Available models of 63A, 100A, and 125A allow the device to be adapted to various loads.
Cons:

For AC systems only: This switch is suitable only for alternating current (AC) networks, making it unsuitable for direct current (DC) systems.
High loads may require additional safeguards: When operating at maximum loads (e.g., 125A), proper wire insulation and connection reliability must be ensured.
Requires a backup power source: This switch only switches between two power sources, requiring a generator or other backup source.
This automatic transfer switch (ATS) is a practical and reliable solution for ensuring uninterrupted power supply. It is ideal for use in both residential and industrial settings, particularly in situations where stable electricity supply is crucial.