The Schneider Electric LC1K1201FC7 is a TeSys K contactor — a compact three-pole control contactor rated for 12 A in AC-3 duty (motor switching) at up to 440 V, with a 127 V AC coil and one normally closed auxiliary contact built in. Its motor power ratings span 3 kW at 220…230 V AC up to 5.5 kW at 380…415 V and 440 V, and 4 kW at 480 V, 500…600 V, and 660…690 V — all at 50/60 Hz, covering common global line voltages. The utilisation categories include AC-1 (resistive), AC-3 (squirrel-cage motor starting/running), and AC-4 (plugging/inching), so it handles both standard motor loads and more demanding reversing or jogging applications.
The 12 A AC-3 rating at ≤440 V is the headline motor-switching current — it determines the largest standard induction motor this contactor can start and stop repeatedly without exceeding thermal limits. Heat dissipation is 1.3 W, which is low enough that no special ventilation is needed in a standard IP2X enclosure, but it should be factored into panel thermal calculations when multiple contactors are ganged. Flame retardance meets UL 94 V1 and NF F 16-101/102 requirements, so the housing materials are self-extinguishing — relevant for rail and industrial control panels that must pass fire-safety inspections.