The outer casing of the switch is made of retardant material, which is resistant to high temperature, is not easily deformed, and is to . Sensitive response, millisecond fast switching of supply. Rail-mounted installation, simple and convenient, effectively your 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: 100A Rated operating voltage: 230V AC Rated frequency: 50Hz/60Hz Insulation voltage: 690V, 50Hz Electrical level: PC level Number of poles: 2P Size: About 5cm Color: White Material: plastic + metal Package Contents: 1 * Automatic Transfer Switch Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.