Features Compact Design: Small size with a simple structure and beautiful appearance, making it easy to operate and enhancing the product's aesthetics. Reliable Performance: Single motor drive for switch conversion, ensuring a stable and noise-free operation with minimal impact. Electromechanical Interlock Protection: Offers reliable and interference-free automatic switch operation, enhancing safety and security. Enhanced Safety: AC-controller protection fuse with a breaking capacity of 50KA, improving distribution security and ensuring safe operation. Manual-Automatic Interlock: Added interlock between manual and automatic operation modes to prevent manual operation under automatic conditions, ensuring safety and preventing interference. Specification: Material: Plastic Weight: 1300g/45.9oz Model: NDQ1-63/2P Insulation voltage: 400 (V) Rated working voltage: AC 50Hz 230 (V) Rated current: 63 (A) Pole number: 2 Rated impulse withstand voltage: 1 (KV) Rated short time withstand current: 63A 3 optional working modes: Self-throw and self-reply working mode. Alternate working mode. Self - feeding and self - restoring working mode. 3 stable working positions: Common power supply and standby power supply. Common power supply, backup power supply. Common power supply points, standby power points. Use level: AC-33B, motor load or mixed load including motor, resistance load and white light load up to 30%. Package List: 1 x Automatic Transfer Switch Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Package List