The Core Function And Principle Of Drop-out Fuse

The core function of the drop out fuse cut out is to automatically cut off the current when the current rises abnormally high enough to damage the circuit or create a fire hazard. The working principle of the drop out fuse element is actually relatively simple: the drop out fuse in transformer contains a fusible metal wire or metal piece. When the current exceeds its rated value, the metal wire will overheat and melt, thus cutting off the circuit.