Features Auto and Manual : Easily switch between automatic and manual modes for efficient control of your power supply Comprehensive Protection Features: Equipped with short circuit, overload, under voltage, and open phase protection for enhanced safety High Safety Ratings: Designed to handle a 63A working current and 400V voltage, ensuring reliable performance in demanding environments Features: 1、Auto and Manual Use: Supporting automatic mode, the transfer switch also enables simple manual , and the is very efficient. 2、Multiple Protection: Designed to have short circuit protection, overload protection, under voltage protection, open phase protection and so on. 3、High Working Safety: Comes with 63A rated working current Ie, 400V rated working voltage Ue, and 4KV rated impulse withstand voltage Uimp. 4、Wide in Application: Can be used in families and public places, especially in office buildings and public places requiring fire protection. 5、Simple Installation: Equipped with protective cover, the dual power automatic transfer switch with compact size is easy to install in minutes. Specification: Item Type: Dual Power Automatic Transfer Switch Model: SGQ1-63 4P Material: Pa66 Rated Working Current Ie: 63A Rated Working Voltage Ue: 400V Rated Impulse Withstand Voltage Uimp: 4KV Standards: GB14048.11, IEC60947-6-1 Package List: 1 x Dual Power Automatic Transfer Switch 1 x User Manual Package List 1 x Dual Power Automatic Transfer Switch 1 x User Manual