The LC1E0901R6 is a 3-pole contactor from Schneider Electric's Easy TeSys Control range, rated for 9 A in AC-3 duty at up to 440 V. The coil is 440 V AC, 60 Hz, and it carries one NC auxiliary contact. This contactor is now listed as obsolete by the manufacturer. If you are maintaining a BOM that calls out this exact order code, you are looking at a replacement or a last-time-buy scenario.
Rated for operation at up to 3000 m altitude without derating, so it works in high-altitude installations without needing to oversize. That means the NC breaks before the NO makes, and vice versa — important when you are interlocking two contactors to prevent a short across phases. If you are wiring up a reversing starter or a star-delta transition, that timing is built in, not something you have to add with external timers.
Rated for vibration and shock: 1.5 Gn open, 3 Gn closed on vibration; 7 Gn open, 10 Gn closed on shock. That is solid for industrial machinery — conveyors, pumps, compressors that rattle the panel. Compliance covers IEC and GB standards for contactors and motor starters: EN/IEC 60947-1, -4-1, -5-1, plus GB/T equivalents.