HF2150-1A-012D(257) is a part manufactured by Hongfa, which is a type of encloser designed for use in hazardous locations. It is rated NEMA 1, 3, 4, 4X, 12, and 13 with a stainless steel construction and has a capacity of 257 cubic inches. It also has a wall-mounting feature. The unit has an IP66 seal rating, meaning it is dust tight and water jets from any direction won't damage its integrity. It is suitable for use with Class I and II Division 2, Class III and Zone 2, and also UL/CSA approved.