The Telemecanique LC1FK43U22 is a 3-pole contactor from the TeSys series, configured with 2 normally-open and 2 normally-closed auxiliary contacts, and a 240V 50Hz coil. Its lifecycle stage is marked eol_hot, and the manufacturer lists the product status as Obsolete.
What the description tells you about fit
The description CONT 3P 2F2O 240V-50HZ breaks down as: a 3-pole power contactor (3P), with 2 form-C auxiliary contact blocks wired as 2 normally-open and 2 normally-closed (2F2O), and a coil rated for 240V AC at 50Hz. That coil voltage and frequency are fixed — the contactor will not pick up on a 60Hz supply or a different control voltage without a coil change.