Milbank® Meter Socket, Ring Less, 600 VAC, 320 A, 60 Hz Frequency, Overhead Feed, 4 Jaws, 4 AWG to 600 kcmil, 1/0 AWG to 250 kcmil, 6 AWG to 350 kcmil Wire, Hub Open Hub, Single/Double Mechanical Terminal, Surface Mounting, NEMA 3R Enclosure, 13 in W x 4-27/32 in D x 38-3/4 in H Dimensions