Overcurrent protection

In electric and electronic circuits, this refers to a mechanism that stops output by interrupting the circuit when an abnormal current exceeding the rated value is detected at the sensing part of the circuit due to causes such as short circuits or leakage. It is synonymous with OCP. Some devices automatically recover when the cause of the overcurrent is removed, while others require manual reset after safety is confirmed by a person. Overcurrent protection functions are widely used, from high-power transmission and distribution circuits to low-power electronic circuits. In transmission and distribution circuits, overcurrent protection also plays an important role in preventing electrical accidents, such as electric shock or leakage.