O-Z/Gedney Explosionproof Junction Box YE-302410A

34-5/8 INCH L X 28-5/8 INCH W X 15-3/16 INCH D OVERALL SIZE 30 INCH L X 24 INCH W X 10 INCH D INNER SIZE 6 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 1-1/16 INCH (SIDE), 1 9/16 INCH (COVER), 1 1/2 INCH (BOTTOM) WALL THICKNESS HOT DIP GALVANIZED BODY FINISH HOT DIP GALVANIZED COVER FINISH APPLICABLE STANDARD NEC 500-503 YE-A MODEL