1MAIN FUNCTION: This transfer switch supports automatic and manual modes. When a power supply fails, it will automatically connect one or more load circuits to another power supply to ensure normal power supply. 2CIRCUIT PROTECTION: This dual power transfer switch supports multiple protection functions, including short circuit protection, overload protection, phase loss protection, and undervoltage protection. 3DURABLE MATERIAL: The shell of the transfer switch is made of flame retardant PC, has good insulation, high temperature resistance, aging resistance, the silver contacts greatly improve electrical conductivity. 4GOOD PERFORMANCE: This dual power transfer switch has a compact structure, stable and reliable transmission, long service life, supports vertical or horizontal installation, and convenient maintenance. 5WIDE APPLICATION: This changeover switch is widely used in important places that do not allow power outages, such as hospitals, shops, banks, chemicals, metallurgy, high rise buildings, military facilities, etc. 1 x Dual Power Transfer Switch 1 x User Manual