It's likely you're thinking about electric fish. Electric fish are a diverse group of fishes that have the ability to generate electric fields. They belong to several different taxonomic orders, including:
* Gymnotiformes: This order contains the South American knifefishes.
* Siluriformes: This order includes catfish, some of which are electric.
* Mormyriformes: This order includes the African elephantfishes.
* Rajiformes: This order includes some species of rays that are electric.
Therefore, there is no single scientific name for the "electric family."
If you have more specific information about the electric fish you're interested in, I can help you find its scientific name.