The Schneider Electric LC1K09106K7 is a TeSys K series 3-pole contactor rated for 9 A in AC-3 and AC-3e duty at 440 V, with a 100 V AC 50/60 Hz coil and one normally open instantaneous auxiliary contact. It is designed for switching motor loads and resistive loads in control panels, certified to EN/IEC 60947-4-1, UL 60947-4-1, CSA C22.2 No 60947-4-1, and JIS C8201-4-1. The AC-3 rating of 9 A at 440 V governs its motor-switching capability — this is the duty cycle for starting and disconnecting squirrel-cage motors under load. The AC-1 rating of 20 A covers resistive loads. Electrical durability is 1.3 million cycles at the AC-3 rating, dropping to 160,000 cycles at the AC-1 rating and 20,000 cycles at the AC-4 rating (inching/plugging duty).
The 9 A AC-3 rating at 440 V is the headline selection parameter — it tells you this contactor can handle a motor drawing up to roughly 5.5 kW at 400 V three-phase. The 100 V AC coil draws 30 VA inrush and 4.5 VA hold-in, dissipating 1.3 W continuously, which matters for panel thermal budgeting in a crowded DIN-rail enclosure. The minimum switching capability of 5 mA at 17 V for the signalling circuit means the auxiliary contact can reliably switch PLC-level signals, not just power circuits.