The LC1E1210BD is a 3-pole contactor from Schneider Electric's Easy TeSys Control range, rated 12 A in AC-3 (motor) and AC-3e duty at up to 440 V, with a 24 V DC coil and one normally open auxiliary contact built in. That AC-3 rating — 12 A — is the number that governs motor switching: it tells you this contactor can handle a standard three-phase induction motor drawing up to 12 A during starting and running, which typically corresponds to a motor around 5.5 kW at 400 V. The 24 V DC coil means it's intended for control circuits running on low-voltage DC, common in PLC-driven panels or safety circuits where you want to keep the control voltage away from line power.
At 45 mm wide, 77 mm tall, and 93 mm deep, it fits a typical 8-module wide DIN-rail footprint — plan your backplane layout accordingly.
The TH protective treatment per IEC 60068-2-30 means it's tested for damp heat, cyclic; not a guarantee for direct washdown, but it handles the humidity you'd see in a non-condensing panel. Operating temperature range of -5 to 55 °C covers most indoor plant-floor conditions, and it derates gracefully up to 3000 m altitude without needing to knock the current down.