JGQ18-63 Self-Resetting Over and Under Voltage Protector

Product Brief of Self-Resetting Over and Under Voltage Protector The self-resetting over and under voltage protector is an advanced electrical safety device specifically developed for low-voltage power distribution systems, integrating overvoltage protection, undervoltage protection, and automatic recovery functions. It is widely applied in residential buildings, commercial complexes, industrial workshops, office spaces, and various electrical equipment circuits, serving as a reliable safeguard for power supply stability and equipment safety. With a built-in high-sensitivity voltage detection module and intelligent control chip, the protector monitors the grid voltage in real time with high precision. When the input voltage exceeds the preset safe threshold (overvoltage) or drops below the minimum safe value (undervoltage), it triggers an immediate and rapid cutoff of the power supply—effectively preventing damage to refrigerators, air conditioners, computers, precision instruments, and other electrical appliances caused by abnormal voltage, as well as avoiding potential fire hazards or circuit aging resulting from prolonged unstable voltage. The defining advantage of this protector lies in its automatic reset function: After the grid voltage returns to the normal safe range, the device will automatically reconnect the power supply without manual operation, ensuring uninterrupted power use for users and eliminating the hassle of manual reset. Additionally, it features fast response speed (response time ≤ 20ms), high protection accuracy, stable performance, and strong anti-interference capability, adapting to complex power grid environments. Designed with a compact structure, the protector supports convenient installation (compatible with DIN rail or panel mounting) and seamless integration with standard distribution boxes. It complies with international electrical safety standards, offering long service life and low power consumption. As an essential electrical safety accessory, it not only enhances the reliability of power utilization but also reduces maintenance costs for electrical equipment, making it an ideal choice for modern power system protection.