Features: Ensures uninterrupted power with this Automatic Transfer Switches, featuring a and reliable double power supply system that automatically switches to backups during outages. designs for durability, this boasts a high flame retardant shell, long mechanical cycles, and more electrical cycles, ensuring long terms resiliences and stability. Suitable for homeowners seek efficient solution to manage their household's power continuities without manual intervention. Excellent for residential setups requiring consistent electricity, such as home offices or equipment, providing peace during unexpected power failures. This integrates seamlessly into your existing electrical setups with its easy to install 35mm din rail designs, offering both safety and convenience in power management. Specifications: Component: plastic Size: about 57x83x105mm Type: 2p/4p(optional) rate operating current (A)63A rate insulation voltages UI690V rate working voltages UeAC 220V rate frequency50/60Hz rate short current lqSOkA Short circuits protectionsfuse rate impulse8kV Common circuit2P AC220V (city power) auxiliaries circuit2P AC220V (city power, generator) Mechanical life8000 time Electrical life1500 time Use categoryAC-31B Note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the differences between different monitors, the picture may not reflect the actual colorful of the item. Package includes: 1xAutomatic Transfer Switches