The LC1K1210GK7 is a TeSys K contactor from Schneider Electric, a 3-pole device rated for control applications. Motor power capability varies by line voltage: 3 kW at 220–230 V, 5.5 kW at 380–415 V and 440 V, and 4 kW at 480 V, 500–600 V, and 660–690 V AC, all at 50/60 Hz. This spread lets the same contactor serve machines shipped to different regional mains voltages without a part change.
What the utilisation categories mean for fit
Rated for AC-3 (motor starting), AC-4 (plugging/inching), and AC-1 (resistive) duty. The AC-3 figure is the one that decides motor fit — 12 A at ≤440 V covers a 5.5 kW motor at 400 V class. AC-4 duty would derate the contactor for frequent reversing or inching applications. AC-1 resistive loads can run higher current, but the motor rating is the binding constraint for most panel designs.
Physical integration and compliance
The 1.3 W heat dissipation is low enough that adjacent devices in a dense row see minimal thermal rise. Flame retardance meets UL 94 V-1, NF F 16-101, and NF F 16-102 requirements, which is relevant for rail and industrial applications where fire spread must be contained. The part carries a V-1 rating, meaning burning stops within 60 seconds and no flaming drips — a standard for panel components.