Push Button Enclosure, Number of Columns 1, Number of Holes 1, NEMA Rating 12, 13, Conduit Size No Conduit Entrance Holes Provided, Dimensions 4.50 in H x 3.47 in W x 2.75 in D, Hole Size 30 mm, Material Metal, Height 4.5 in, Width 3.47 in, Depth 2.75 in, Color Gray, Includes Captive Cover Screws, Closed Cell Oil Resistant Gasket, Grounding Stud, Mounting Flange, Type Oil Tight, For Use With 30mm Push Buttons of Selector Switches, Mounting Style Surface, Contact Block Depth 1.75 in