What this contactor is rated for
The LC1K12106P7 is a 3-pole TeSys K contactor rated 12 A in AC-3 duty at ≤440 V, meaning it switches standard three-phase induction motors up to that current — a 5.5 kW motor on a 380–415 V supply, or 4 kW at 480 V. The 230 V AC coil pulls in reliably across its operating range; heat dissipation is 1.3 W, negligible for panel thermal budgeting.
The 3 N/O main poles handle power circuits; the single N/O auxiliary contact is built in, so no add-on block is needed for basic signalling.
