O-Z/Gedney Explosionproof Junction Box YE-241808A

27-7/8 INCH L X 21-7/8 INCH W X 12-3/8 INCH D OVERALL SIZE 24 INCH L X 18 INCH W X 8 INCH D INNER SIZE 5 INCH HUB SIZE UL 886, CSA APPROVAL SURFACE MOUNTING CLASS I GROUP D, CLASS II GROUP E F G, CLASS III, NEMA 7/9 ENCLOSURE SCREW ON COVER TYPE CAST ALUMINUM BODY MATERIAL CAST ALUMINUM COVER MATERIAL 15/16 INCH (SIDE), 1 1/4 INCH (COVER), 1 3/16 INCH (BOTTOM) WALL THICKNESS HOT DIP GALVANIZED BODY FINISH HOT DIP GALVANIZED COVER FINISH APPLICABLE STANDARD NEC 500-503 YE-A MODEL