Features 1、Seamless Power Transition: The double electronic power circuit breaker is engineered to ensure a slick and instantaneous power transition within less than 50 milliseconds. This rapid switching capability guarantees uninterrupted power supply, allowing your essential devices to continue operating without any noticeable disruption. 2、Automatic Backup Activation: In the event of an abnormality with the primary power source, the generator changeover switch automatically activates the backup power source without delay. This feature significantly enhances power continuity and reliability, ensuring that your home remains powered even during outages or power fluctuations. 3、Automatic Reversion To Main Power: Once the primary power source is restored and confirmed to be stable, the automatic transfer switch will automatically revert from the backup power source back to the main supply. This intelligent reversion ensures that you don't have to manually intervene, adding convenience and efficiency to your power management. 4、Convenient And Safe: Specifically designed for installation in for PZ30 distribution boxes, this double power electrical selector switch is compact and easy to install. The user friendly design allows for quick installation and maintenance, ensuring that you can set it up effortlessly in your home while prioritizing safety and convenience. 5、Rugged Construction: Manufactured with flame retardant PC materials and silver contacts, this double power automatic transfer switch is built to last. Its robust design not only ensures longevity but also enhances reliability during switching operatings, making it a good choice for residential power management needs. Specification Item Type: Double Power Automatic Transfer Switch Material: PC Flame Retardant, Silver Rated Insulation Voltage Ui: AC690V Frequency: 50, 60HZ Category: PC Grade (Able to open under load without generating short circuit current) Specifications: 2P Rated Short Circuit Current: 50kA Rated Impulse Withstand Voltage: 8kV Rated Control Voltage: 110VAC 85%Us-110%Us Lifespan: Electrical: ≥1500 Times, Mechanical: ≥5000 Times Fuse: RT16-00-63A Touch Time: <50ms Operating Transition Time: <50ms Return Time: <50ms Closing Time: <50ms Package List 1 x Double Power Conversion Switch 1 x Manual