16 GAUGE G90 GALVANIZED STEEL MATERIAL; ANSI 61 GRAY POLYESTER POWDER COATING OVER PHOSPHATIZED FINISH; 60 INCH; 6 INCH; 6 INCH; UL 870, CUL APPROVAL; NEMA 3R ENCLOSURE; SCREW COVER TYPE; WIRING TROUGH; (9) 1/2 INCH, 3/4 INCH, 1 INCH, 1-1/4 INCH, 1-1/2 INCH CONCENTRIC KNOCKOUT (BOTTOM) KNOCKOUT(S); GSC3R MODEL