EAP fuses are typically made of metal, such as copper or silver, and are rated for a specific current capacity. When the current draw exceeds the rated capacity of the fuse, the fuse will melt and break the circuit, thereby preventing further current flow.
EAP fuses are an important safety device and should be used in accordance with the manufacturer's instructions. Using the wrong type of fuse or a fuse with too high a current rating can damage the device and void the warranty.