RINGLESS TYPE; 8 INCH W X 3-5/16 INCH D X 11-1/2 INCH H SIZE; 6 TO 2/0 AWG (LINE/LOAD) WIRE SIZE; POWDER COATED G90 GALVANIZED STEEL ENCLOSURE MATERIAL; UL APPROVAL; 600 VAC AT 60 HZ VOLTAGE RATING; SURFACE MOUNTING; NEMA 3R ENCLOSURE; 150 AMPERE CURRENT RATING; 1-PHASE 3-WIRE CIRCUIT CONFIGURATION; OVERHEAD/UNDERGROUND SERVICE TYPE; TRIPLEX GROUND NEUTRAL TYPE; SMALL OPENING HUB TYPE; (1) 2 INCH, (2) 1-1/2 INCH, (2) 1-1/4 INCH, (1) 1/4 INCH CONCENTRIC KNOCKOUT KNOCKOUT(S); 4 JAW(S); HORN BYPASS SWITCH; INCLUDES BARREL LOCK WITH PROVISION GUARD; U7487 MODEL