Surge Protector Applicability And Working Principle

The surge protective device, also known as an SPD (Sustainable Voltage Detector), is a widely recognized electronic device today, providing safety protection for low-voltage power supply systems, electronic equipment, instruments, and communication lines. When a surge voltage or current suddenly occurs in an electrical circuit due to external factors such as lightning, the surge protector can conduct and shunt the current in a very short time, thus preventing damage to other equipment in the circuit.

The surge protection device is suitable for AC 50-60 Hz power supply systems with a rated voltage of 220V-380V, as well as residential homes, service industries, and industrial and mining enterprises. It provides protection against instantaneous overvoltage surges caused by direct and indirect lightning or other reasons.