The Schneider Electric LC1E40B10N5WB is a three-pole (3 NO) contactor from the Easy TeSys Control range, rated for AC-3 duty at 50 A on a 400 V power circuit. The AC-3 utilisation category means it is built for switching squirrel-cage motors — making and breaking currents during starting, running, and stopping — not just resistive loads. The 415 V AC coil has a wide-range tolerance, so it holds in on supply dips that would drop a standard coil. It also carries AC-1 (resistive load) and AC-3e ratings, covering heating banks and energy-efficient motor applications.
The IP20 degree of protection means it is touch-safe but not sealed; install it inside a cabinet or enclosure rated for the environment. The contactor carries protective treatment TH conforming to IEC 60068, so it resists tropical humidity and condensation during storage and operation. Permissible ambient temperature spans -20 to 70 °C at the coil, with storage down to -60 °C and operation from -5 to 55 °C.
Also passes the glow-wire test at 850 °C per IEC 60695-2-1, and meets the fire-resistance requirements of EN/IEC 60335-1 Clause 30.2 and EN/IEC 60335-2-40 Annex JJ for appliance applications.