Feature: - Brand new and high quality - Made of high quality material, - The switching time of this dual power supply is about 30mm, which can realize the uninterrupted switching of most electrical equipment (such as air conditirs, refrigerators, TVs, computers, monitors, etc.). - This product is small in size and can be installed in a power distribution unit together with a circuit breaker. - Due to the characteristics of the product, this model cannot be connected to the inverter, but can only be connected to the mains or the engine power supply (it is recommended to install an overvoltage and undervoltage on the generator). - 220V single-phase mains, 63A current can carry 12KW. - This product is a secondary dual power supply, no open circuit position, that is, there is always power supply connected to the load, and the machine cannot be switched on or off. - This product is a PC-level dual power supply, without short-circuit protection and overload protection. - When both circuits are powered at the same time, the main power has priority. When the main power is cut off, it will automatically switch to the backup power. When main power is restored, it automatically switches from backup to main power. Specification: - Breaking capacity KA: 6KA - Rated frequency: 50/60Hz - Electrical grade: PC grade - Number of poles: 2P/3p, 4p (optional) - Rated operating current: 125A - Rated working voltage: 220V AC - Model: 2P 125A 220V, 2P 125A 110V, 3P 125A 400V, 4P 125A 400V (optional) Package includes: 1*Dual power automatic transfer switch (optional) Notes: 1. Due to various factors such as display brightness and light brightness, the actual color of the product may be slightly different from the website picture. 2. Please allow a slight deviation between the data and the manual measurement. 2P 125A Dual Power Automatic Transfer Switch Fit Generator Changeover Switch Easy to install and reliable to use. Solid and Sturdy, long service life. Pls kindly check the decription before you order. Any other in need pls contact with us directly Brand new and high quality