Welcome to our store! MAIN PURPOSE: A household miniature circuit breaker, mainly used to test whether the main power supply or standby power supply is normal to ensure power continuity, reliability, and safety. OPERATION METHOD: The dual power switch supports manual and automatic operation, millisecond switching without power failure, reliable transmission, simple installation and maintenance. 35MM RAIL MOUNTING: The automatic transfer switch uses a 35mm standard guide rail installation method, suitable for PZ30 distribution boxes, with a compact structure and taking up less space. 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. APPLICABLE SCENE: Switch to standby power when power failure occurs, and switch to main power when power failure occurs, often used in places where continuous power failure is not allowed. Item Type: Automatic Transfer Switch Material: PC, Silver Rated Current Ie: 125A Insulation Voltage Ui: AC690V Rated Voltage Ue: AC400V Frequency: 50/60HZ Rated Operating Voltage: 230VAC Rated Control Voltage Us: AC220V, 85%Us-110%Us Level: PC Level Specification: 4P Lifespan: Electrical: 2000 times; Mechanical: 5000 times Short Circuit Current: 50kA Fuse: RT16-00-63A Rated Impulse Withstand Voltage: 8kV Auxiliary Circuit: 2 relays, each with 2 sets of contact capacity, AC220V50HZ Ie=5y Touch Time: <50ms Operating Switching Time: <50 ms Return Time: <50 ms Closing Time: <50ms 1 x Automatic Transfer Switch 1 x User Manual Customers are our top priority. If you find any problems with your product after receiving it, such as damage or incorrect quantity, please contact us immediately. We strive to provide you with the best after-sales service.