The Schneider Electric LC1K16107Y7 is a TeSys K contactor — a compact 3-pole unit rated 16 A in AC-3 duty at ≤440 V, with a single normally-open auxiliary contact. The coil is wound for 660...690 V AC, so it's built for 690 V line-fed control circuits common in European and export panels. Motor power capability spans 4 kW at 480 V AC up to 7.5 kW at 380...415 V AC, covering a range of voltage standards from 220...230 V through 660...690 V. That's the headline selection number: match your motor's full-load current to the 16 A AC-3 rating, not the kW table, because the kW values assume a specific motor efficiency and power factor. Short-time withstand current (Icw) is 115 A for 1 second on the power circuit — enough to ride through a short-duration fault without welding contacts, provided upstream protection clears within that window. Heat dissipation is 1.3 W, which matters when you stack several contactors in a sealed enclosure.
The 45 mm width is three modular units (each 15 mm), so it occupies three slots on a DIN-rail terminal block assembly. Plan your enclosure fill factor accordingly: at 45 mm wide, you can fit about 6 of these per 300 mm of rail. Flame retardance is V1 per UL 94, meaning the housing self-extinguishes within 30 seconds after a flame source is removed — a standard requirement for control panels in most industrial and commercial occupancies.
Because it's an active, standard part, sourcing is straightforward: quote against an RFQ for your required quantity. No broker or surplus channel needed — this is a current-production item you'd order through normal supply.