Instrument and Meter Box with Cover, Constructional Feature Explosion-Proof, Dust-Ignitionproof, Number of Hubs 1, Hub Size 4 Inch, Cover Type Solid, Body Material Copper-Free Aluminum, Body Finish Gray Powder Epoxy Coated, Cover Material Copper-Free Aluminum, Size 12.13 Inch W x 8 Inch D x 12.13 Inch H, Mounting Hardware Feet, Enclosure Class I Div 1 and 2 Group B C D, Class II Div 1 and 2 Group E F G, Class III, NEMA 4/4X/BCD/9EFG, Approval UL 886/1203, CSA C22.2, UL ( Canada)