The Schneider LC3K09B7 is a TeSys K star delta starter, pre-wired for reduced-voltage starting of three-phase induction motors. The three power poles are all normally open (3 x 3 NO), configured for the main and delta contactor legs of a star-delta circuit. The coil is 24 V AC, which is a common control voltage in industrial panels. Flame retardance is V-1 per UL 94, with additional compliance to NF F 16-101 and NF F 16-102 for rail applications.
This part is marked as obsolete by the manufacturer. There is no official successor order code listed in the available records, so a direct drop-in replacement from the same series isn't confirmed. The TeSys K range itself is a mature line, and while other TeSys K contactors exist, pin-to-pin compatibility for the star-delta pre-wired assembly would need physical verification against the existing panel wiring.
The 9 A AC-3 rating is the key selection parameter — it governs the maximum motor current the starter can handle during starting (typically 6-8x FLA for a brief period). If your motor's full-load amps exceed 9 A in AC-3 duty, this unit is undersized. The IP20 rating tells you this is a panel-mount component — no washdown or outdoor exposure without an additional enclosure. The 3 x 3P pole configuration (three poles, each with one NO contact) is standard for star-delta: one set for line, one for star, one for delta. The pre-wired presentation saves panel wiring time, but the exact terminal layout should be cross-referenced against the existing starter footprint before committing the BOM line.
Deployment Context
This starter is designed for DIN-rail mounting inside a control panel, typically feeding a motor starter combination with overload relay. The IP20 rating and V-0 flame retardance suit it for standard industrial environments where panel ingress protection is already handled by the enclosure. The 2000 m altitude rating without derating covers most installations below that elevation; above that, expect reduced dielectric withstand and thermal derating.