This compact single-phase current-limiting protector offers advanced circuit safety. It instantly detects and limits short-circuit currents within microseconds, effectively preventing arc faults and electrical fires. The device provides comprehensive protection against overloads, over-voltage, and under-voltage conditions. It features real-time monitoring of cable temperature and leakage current, triggering alarms or disconnection when thresholds are exceeded. With integrated RS485 or wireless communication, it supports remote monitoring and management via a central platform, ensuring high reliability for modern electrical systems.