Product details:

RINGLESS TYPE; 2/0 AWG (LINE/LOAD) WIRE SIZE; UL APPROVAL; 600 VAC VOLTAGE RATING; SURFACE MOUNTING; 100 AMPERE CURRENT RATING; 1 PHASE 3 WIRE/3 PHASE 4 WIRE CIRCUIT CONFIGURATION; OVERHEAD SERVICE TYPE; (1) SMALL OPENING, (1) SMALL CLOSING PLATE, (1) 2.5 INCH, (1) 1.25 INCH HUB TYPE; CUTLER-HAMMER[R] BRAND; APPLICATION RESIDENTIAL CH2 URS101BCPLCH 125A METER SOCKET