The LC1E1801Q6 is a Schneider Electric EasyPact TVS contactor from the Easy TeSys Control range — a 3-pole (3 NO) unit rated for AC-3 motor switching at 18 A up to 440 V, with a 380 V AC coil. It also covers AC-3e and AC-1 resistive loads, so it handles both motor starts and general power switching in the same footprint. The IP2X finger protection means it's safe for open-panel installation where accidental touch is a concern.
If you're designing a new panel, look at the current Easy TeSys or TeSys Deca range for a direct functional equivalent; the physical footprint and coil voltage are the main compatibility checks.
It also meets EN/IEC 60335-1 Clause 30.2 and -2-40 Annex JJ for appliance applications, and has 850 °C glow-wire fire resistance per IEC 60695-2-1.
Dimensions are 74 mm high, 45 mm wide, 80 mm deep — a compact 3-pole block that leaves room on the DIN rail for auxiliaries. It operates at -5 to 55 °C ambient, stores at -60 to 80 °C, and runs at full rating up to 3000 m altitude without derating. Vibration resistance is 1.5 Gn open and 3 Gn closed (5–300 Hz); shock resistance is 7 Gn open and 10 Gn closed (11 ms).