The Electro Thermal Link – ETL – is a multipurpose dual responsive fusible link/release device. The fusible portion functions identically to that of an ordinary fusible link; when the ambient temperature approaches the rated temperature, the solder alloy melts and the link halves separate. Additionally, electrical actuation (0.2 ampere minimum trip current applied for 50 milliseconds, minimum duration) starts a chemical reaction, which heats the core and causes separation of the fusible link in 6 to 10 seconds at normal ambient temperature.