Features Advanced Dual Power Switching Technology - This automatic transfer switch ensures seamless power supply transitions, minimizing downtime and enhancing reliability for your electrical systems Comprehensive Protection Features - Equipped with overload and short circuit protection, this device safeguards your equipment from electrical failures, ensuring longevity and safety Compact Design with High Efficiency - Its small size and high breaking capacity make it a perfect fit for limited spaces while maintaining optimal performance in various applications Energy-Saving and Quiet Operation - Designed for low noise and energy efficiency, this switch promotes a quieter environment while reducing overall energy consumption User-Friendly Installation and Stability - Simple installation process combined with stable performance guarantees hassle-free operation, making it ideal for both professional and DIY use Features: 1、 double power automatic switch, strong anti-interference ability, high precision. 2、Complete protection function, with overload, short circuit protection. 3、Small size, high breaking, short arc, compact structure, beautiful appearance. 4、Noise- , energy-saving, convenient installation, simple , stable performance. 5、The product has overload, short circuit function, but also has the function of output closing signal. Specification: Overview: Micro new double power automatic switch, suitable for AC 50Hz, rated working voltage 400V and below the double power supply system, with automatic or manual to complete the conversion between the common power supply and the standby power supply. The switch is mainly used in hospitals, shops, Banks, metallurgy, high-rise buildings, military facilities and other important occasions where power failure is not allowed. Features: double power automatic switch, strong anti-interference ability, high precision. Complete protection function, with overload, short circuit protection. Small size, high breaking, short arc, compact structure, beautiful appearance. Noise- , energy-saving, convenient installation, simple , stable performance. The product has overload, short circuit function, but also has the function of output closing signal. Specification: Material: Plastic Weight: 1580g/55.7oz Model: NDQ1-63/3 Insulation voltage: 300 (V) Rated working voltage: AC 50Hz 400 (V) Rated current: 63 (A) Pole number: 3 Rated impulse withstand voltage: 0.6 (KV) Rated short circuit capacity: 3KA 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 pow Package List