The Cutler-Hammer eaton AN16KN0 50HP 90A 600V 3Ph 3Pole NEMA size 3 starter C320KGS3 is an industrial replacement part from Cutler-Hammer. It fills a specific mechanical or electrical role within the system it's installed in. Key specifications noted on this listing include 90A, 3Pole. It is commonly in general industrial and mechanical maintenance applications.
