DC1-349D5FB-A66CE1 is a part number for Eaton's FXM Disconnect Switch and Enclosure product. The enclosure is rated for Type 4, 4X and 12, and is made to NEMA 1, 3, 3R, 4, 4X, 12 and 13 standards. It is a fully enclosed, double-throw molded case safety switch with a 30A to 600A range and a 125V to 600VAC rating.