Full Technical Description: 7-1/4 Inch W X 8-1/8 Inch D X 23-1/2 Inch H Size; 1-1/2 Inch Hub Size; Copper Free Aluminum Enclosure Material; 1 Hub(S); UL 698, UL 1010 Approval; Class II Div 1 and 2 Group F G, Class III, NEMA 3/9FG/12 Enclosure; Dust/Ignition Proof, Water Tight; Natural Enclosure Finish; Top Hub Location; Fdb Breaker Type; 3 Breaker Pole(S); 600 VAC Breaker Voltage Rating; 100 Ampere Breaker Current Rating; Apj/Npj Mating Plug; 100 Ampere Receptacle Current Rating; 4 Pole 3 Wire Receptacle Configuration; ARKTITE[R] Brand; DBR Model