Features MULTI PROTECTION: The automatic transfer switch supports multiple protection functions, including short circuit, overload, phase loss and undervoltage protection. AUTOMATIC AND MANUAL: The automatic switch not only supports automatic mode, but also can be operated by manual button, which is simple to operate and reliable in performance. WIDELY USED: This dual power automatic transfer switch can be used in homes and public places, especially in office buildings and public places requiring fire protection. CONVENIENT INSTALLATION: This switch has a reasonable structure, small size, and is equipped with a protective cover. The power supply installation is convenient and reliable. IDEAL REPLACEMENT: The switch is an ideal replacement for the old and damaged parts for better circuit operation! Specification: Item Type: Dual Power Automatic Transfer Switch Material: Pa66 Brand: SG Rated Working Current (Ie): 125A Rated Working Voltage (Ue): 400V Rated Impulse Withstand Voltage (Uimp): 4KV Standard: For GB14048.11 IEC60947 6 1 Electrical Classification: CB class Package List:1 x Dual Power Automatic Transfer Switch 1 x Manual Package List 1 x Dual Power Automatic Transfer Switch 1 x Manual