An adaptor assembly is provided. The adaptor assembly is structured to allow a cable of a first amperage to be coupled to, and placed in electrical communication with, a terminal of a different amperage. That is, an adaptor assembly includes a lug body and an adaptor body. The adaptor body is coupled to, and in electrical communication with, the lug body. The lug body includes a cable passage, wherein said cable passage has a cross-sectional area corresponding to a cable of a first amperage. The adaptor body includes a conducting surface, wherein said conducting surface has a surface area corresponding to a conductor terminal end mating surface of a second amperage.