Pushbutton Enclosure Number of Columns 1 Number of Holes 1 NEMA Rating 4 Conduit Size No Conduit Entrance Holes Provided Dimensions 3.63 in H x 5.50 in W x 4.00 in D Hole Size 30 mm Material Die-Cast Aluminum Height 3.63 in Width 5.5 in Depth 4 in Color Gray Includes Guard Type - Mounting Style Internal Holes Standards UL CSA