The LC7K12015B7 is a TeSys K contactor from Schneider Electric — a 3-pole, 3 NO main pole contactor rated for AC-3 switching duty at 12 A up to 440 V, with a 24 V AC coil and one normally closed auxiliary contact built in. The 12 A AC-3 figure governs the motor current it can handle; match that to your full-load amps.
Motor power coverage
Across common line voltages the contactor supports 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 — all at 50/60 Hz. That covers most standard three-phase induction motor sizes in this frame class.
Heat dissipation is 3 W, manageable in a ventilated panel but worth summing across multiple contactors in a sealed box.