The outer casing of the switch is made of flame retardant material, which is resistant to high temperature, is not easily deformed, and is safer to use.Sensitive response, millisecond fast switching of supply.Rail-mounted installation, simple and convenient, effectively protect your electricity safety and stability.Reasonable structure, small size, beautiful appearance, long service life.Noise-free operation, simple operation, reliable performance.Double automatic switching switch is to switch the two supply, divided into the common supply and standby supply. When the common supply is cut off, the backup supply will be restored to the common supply after the common is called. In special cases, automatic switching is not required, and manual switching can also be set by yourself.Rated operating current: 100ARated operating voltage: 230V ACRated frequency: 50Hz/60HzInsulation voltage: 690V, 50HzElectrical level: PC levelNumber of poles: 2PSize: About 5cmColor: WhiteMaterial: plastic + metalPackage Contents:1 * Automatic Transfer SwitchOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.