The Schneider Electric LC1E0901N5 is an EasyPact TVS contactor from the Easy TeSys Control range, a 3-pole (3 NO) device rated for 9 A in AC-3 duty at up to 440 V, with a 415 V AC coil. It also carries an AC-1 rating for resistive loads, so it can handle heater banks or lighting circuits at a higher current, though the exact AC-1 number isn't listed here. The coil is 415 V AC, common in 400 V three-phase panels where you want the control voltage to match the line.
The utilisation categories tell you what loads this contactor can handle: AC-3 for squirrel-cage motors (starting and disconnecting under load), AC-3e for high-efficiency motors with higher inrush, and AC-1 for resistive loads. If you're driving a motor with a full-load current above 9 A, you need a larger frame. Environmental limits are solid for a panel-mount part: it operates from -5 °C to 55 °C ambient, stores from -60 °C to 80 °C, and works at altitudes up to 3000 m without derating.
Mechanical robustness is specified: it withstands vibrations of 1.5 Gn open and 3 Gn closed (5–300 Hz), and shocks of 7 Gn open and 10 Gn closed (11 ms). That's enough for most industrial environments, though not for extreme mobile or marine duty.