Specifications:

Number of Poles: 4 pole (4P)
Rated Current: Adjustable, 63A to 125A
Mounting Type: DIN rail
Usage: Dual power switching between solar inverter (PV) and main grid
Purpose: Uninterrupted power supply in solar photovoltaic systems and other renewable energy systems
Automatic Switching: The switch automatically transfers the power source if one of them turns off or a fault occurs
Compatibility: Designed for use with PV solar energy systems and backup generators
Protection Class: IP20, dust protection
Functions:

Uninterrupted Power: Automatically switches the power source to the backup, ensuring stable electricity supply.
Dual Power Switching: Suitable for systems that require switching the power source between the grid and solar inverter.
DIN Rail Mounting: Convenient and quick installation suitable for various electrical panels.
Adjustable Current: Allows selection of 63A, 100A, or 125A current depending on the needs of the electrical system.
Usage:

In Solar Photovoltaic Systems: Allows safe and reliable switching of power between the grid and solar energy, ensuring no interruption in power supply.
In Backup Power Systems: Suitable for systems where a generator or other backup power source is desired when the main grid becomes unreliable.
In Industrial and Commercial Enterprises: Ensures stable electricity supply for various devices requiring uninterrupted energy flow.
Pros:

High Reliability: Automatic switching helps prevent power supply disruptions.
Compatible with Solar Energy Systems: Specifically designed for photovoltaic systems, ensuring efficient energy switching.
Easy Installation: DIN rail system allows quick installation of the switch in electrical panels.
Adjustable Current Range: Customizable according to the needs of electrical loads (63A-125A).
Cons:

For Indoor Use Only: IP20 protection class is not suitable for outdoor or damp environments.
Complex Integration Without a Professional: Due to technical complexity, professional installation is required.
For Specific PV and Backup Systems: Designed for use in specific solar energy and backup power systems, thus not suitable for all grids or devices.
This automatic dual power switching switch is a versatile solution for solar energy and other renewable energy systems where uninterrupted power supply is crucial. It is designed to ensure the stability of the power supply by automatically switching the power source to backup when the main source becomes unavailable.