RINGLESS TYPE; 26-1/2 INCH W X 5-1/8 INCH D X 14 INCH H SIZE; 6 AWG TO 350 KCMIL (LOAD) WIRE SIZE; UL APPROVAL; 300 VAC VOLTAGE RATING; SURFACE MOUNTING; NEMA 3R ENCLOSURE; 200 AMPERE CURRENT RATING; 1-PHASE 3-WIRE CIRCUIT CONFIGURATION; 2 POSITION(S); OVERHEAD/UNDERGROUND SERVICE TYPE; LARGE OPENING HUB TYPE; 4 JAW(S); 400 AMPERE MAIN LUG CURRENT; MATERIAL POWDER COATED G90 GALVANIZED STEEL; BYPASS TYPE HORN; LINE SIDE TERMINATION 3/8 INCH-16 TPI STUD; KNOCKOUTS (1) (1/2 INCH - 3/4 INCH - 1 INCH), (6) (1-1/4 INCH - 1-1/2 INCH - 2 INCH - 2-1/2 INCH), (1) (2 INCH - 2-1/2 INCH - 3 INCH) CONCENTRIC KNOCKOUT, (1) 1/4 INCH, (2) 7/8 INCH SOLID KNOCKOUT; U1252 MODEL