The Schneider Electric LC1K09016K7 is a TeSys K series contactor, 3-pole with 3 NO main contacts, rated for motor control and resistive load switching across utilisation categories AC-1, AC-3, AC-4, and AC-3e.
The AC-3 rating of 9 A at ≤440 V means it switches standard three-phase squirrel-cage motors up to roughly 4 kW (400 V class) — the typical duty for starting and stopping under load. The AC-4 rating covers plugging and inching, where the contactor breaks full locked-rotor current. The 100 V AC coil is a specific control voltage; verify your control transformer or PLC output matches before specifying, as the coil draw and hold-in are designed for that nominal level. Operating altitude is rated to 2000 m without derating, so it works in most industrial sites without needing a current reduction.