Bud provides a complete array of NEMA and IP compliant products that can be rapidly identified by the part number prefix as is shown in this listing. For example, the prefix of AN is for the Aluminum NEMA die cast box series that is rated NEMA 4, 4X, and also IP68. A PN is a small Plastic NEMA series, mostly made of polycarbonate that also meets NEMA 4X standards. SNB is for the Steel NEMA series that is also NEMA 4 and IP66.