1、Dual Power Supply: The PC level infrequent transfer switch adopts dual station design, with A as the common power supply and B as the backup power supply, for 50/60Hz AC system. 2、Working Principle: When the main power supply (A) fails, the switch will automatically switch to the backup power supply (B) to continue working (switching speed less than 50ms). 3、Stable Performance: The rated current of the dual power automatic transfer switch is 16A, and the insulation voltage is 690VAC, ensuring efficient, safe and reliable operation. 4、Easy Installation: This changeover switch has a simple and compact structure, which can be installed vertically or horizontally in the cabinet, has a wide range of applications. 5、Flame Retardant Shell: The transfer switch is made of flame retardant PC material, which has good toughness, impact resistance, pollution level 3, can be used in various environments. Item Type: Dual Power Automatic Transfer Switch Rated Current: 16A Insulation Voltage: 690VAC Class: PC Frequency: 50/60Hz Standard: IEC60947-6 Rated Short Circuit Current Limitation: 50KA Operating Temperature Range: -5℃-40℃, the average temperature within 24 hours should be lower than +35℃ Storage Temperature Range: -25℃-55℃, up to +70℃ in a short time (within 24 hours) 1 x Dual Power Automatic Transfer Switch Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin