Pushbutton Enclosure, Number of Columns 1, Number of Holes 1, NEMA Rating 4, 4X, Conduit Size 1/2 in, Dimensions 2.91 in H x 2.68 in W x 2.10 in D, Hole Size 22.5 mm, Material Die-Cast Aluminum, Height 2.91 in, Width 2.68 in, Depth 2.1 in, Color Light Gray, Type Metallic, For Use With 30G075-30G084,30G096-30G098,30G103-30G116,30G118,120,122,30G127-30G130,30G135-30G137,30G282,30G284,30G285, 30G287, Standards IEC,UL,CSA,CE WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov - Nickel (Metallic)