Features 1、MAIN PURPOSE: A miniature household power switch, mainly used to test whether the main power supply or standby power supply is normal to ensure power continuity, reliability and security. 2、OPERATION METHOD: The dual power switch supports manual and automatic operation, millisecond switching without power failure, reliable transmission, easy installation and maintenance. 3、35MM RAIL MOUNT: The automatic transfer switch adopts 35mm standard guide rail installation method, suitable for PZ30 distribution boxes, with a compact structure, and takes less space. 4、DURABLE MATERIAL: The switch shell is made of PC flame retardant plastic, with good insulation, high temperature and aging resistance, the silver contacts greatly improve electrical conductivity. 5、APPLICABLE SCENE: Switch to standby power when power failure occurs, and switch to main power when power failure occurs, widely used in places where continuous power failure is not allowed. Specification Item Type: Automatic Transfer Switch Material: PC, Silver Rated Current Le: 125A Frequency: 50/60HZ Level: PC Level Specification: 4P Service Life: Electrical: 2000 Times; Mechanical: 5000 times Rated Short Circuit Current: 50kA Fuse: RT16-00-63A Auxiliary Circuit: 2 relays, each with 2 sets of contact capacity, AC220V50HZ le=5y Touch Time: <50ms Operation Switching Time: <50ms Return Time: <50ms Closing Time: <50ms Package List 1 x Automatic Transfer Switch 1 x User Manual