The Electro Thermal Link (ETL)® is a multi-purpose dual responsive fusible link / release device. The fusible link portion functions identically to that of an ordinary fusible link (ambient temperature approaching the rated temperature allows the solder alloy to melt, and the link halves to separate). Additionally, electrical actuation (0.2 ampere minimum trip current applied for 50 millisecond minimum duration) starts a chemical reaction which heats the core and effects separation of the fusible link in 6 to 10 seconds at ambient temperature.