JGQ12-40 30A 40A 50A 63A 300V Din Rail Adjustable Voltage Protector

Product Brief of Over and Under Voltage Protector An over and under voltage protector is a core electrical protection device designed for low-voltage power systems, mainly applied in residential, commercial and industrial power distribution circuits. It real-timely monitors the input grid voltage, and automatically cuts off the power supply once the voltage exceeds the preset safe range (overvoltage) or falls below it (undervoltage). This effectively prevents electrical equipment from being damaged by abnormal voltage, avoids circuit aging and fire hazards caused by long-term unstable voltage, and reduces the failure rate of precision electrical appliances. With characteristics of fast response, high protection accuracy and automatic recovery (optional), the protector features simple installation and stable performance, matching with various distribution boxes. It is an essential safety accessory to improve the reliability of power use and protect the safety of electrical equipment and power circuits.