Safe flame retardant construction: PC flame retardant material plus overvoltage protection, undervoltage protection, and a voltage display for realtime voltage measurement, making operation safer and more reliable. Robust circuit protection: Designed for AC circuits at 50 Hz or 60 Hz with a maximum rated current of 63A to protect you and connected equipment from overvoltage, undervoltage, leakage, and other faults. Detection before closing with fault logging: Automatic resettable power protection switch continuously monitors the circuit; in events such as overvoltage, leakage, overcurrent or other failures, it will not close. It automatically saves trip information including time, cause, voltage, current, leakage current and other trip data to facilitate fault analysis. Delayed poweron and intelligent leakage control: When fault conditions to normal, a 3060 minute delay protection enables automatic poweron without manual intervention. Intelligent leakage identification automatically checks that voltage is normal before closing; the N line is connected, and if a fault remains the device will not close. 23 use scenarios Home office or computer workstation protection: safeguards computers, monitors, printers, and charging devices from surges, undervoltage, and leakage. Workshop or lab equipment protection: protects sensitive instruments, testers, and power supplies in environments with varying electrical loads. Small office or studio electronics distribution: provides reliable, monitored power with builtin safety features for multiple devices and appliances.