What You're Getting
The description reads "ABB A75N3-30-11-81 A75N 3P CONTR,NM" — that's a three-pole contactor, non-modular. The "30" in the code typically refers to a 30 A rated frame in the A75N family, though the exact thermal current (Ith) or AC-3 motor rating isn't listed here. The "11" means one normally-open and one normally-closed auxiliary contact built into the base. The "81" suffix is a coil code; you'd need to confirm the coil voltage from the full datasheet or nameplate if you're replacing an existing unit.