Intraground Feed-Thru Enclosure With Square D, Enclosure: NEMA 3R, 4X, 7CD, 12, Number Of Poles: 1, Hub Size: 1/2 Or 3/4 IN, Amperage Rating: 20 AMP, Standard: Class I, Division 1 And 2, Groups C, D, For N1 Series Non-Metallic Circuit Breakers And Enclosures