Dual Power Automatic Transfer Switch, 250A 110V Industrial Automatic Transfer Switch Manual/Auto Adjustment, Dual Power Generator Changeover Switch for Factories 4P 250A

[Strong durability] The material of this dual power switch is resin, which has good strength, wear resistance and impact resistance. The product uses flame retardant material, good insulation. Therefore, it is very safe and durable to use. [Automatic change-over switch]Automatic transfer switches are designed so that they can be quickly and easily switched to a backup power supply in the event of a power failure, and to a regular power supply when the power is switched on. [Strong carrying capacity] The switch has a variety of wiring ports and wiring methods, and a wide range of functions can meet your needs. [Manual/automatic adjustment] When switching between two power supplies, if automatic switching is not required under special circumstances, it can be set to manual switching, which is very convenient. [Easy to operate] The corresponding buttons on the outside of the switch have detailed written instructions, and there is a detailed user manual in the package, so you can operate easily.