The Schneider Electric TeSys K LC2K16107B72 is a reversing contactor — three poles, rated for AC-3 motor duty up to 16 A at 440 V, with a 24 V AC coil. It ships preassembled with the reversing power busbar, so you skip the separate busbar ordering and assembly step on the panel build. The AC-4 category also listed means it can handle plugging and inching duty, though that's harder on the contacts and you'd want to check cycle life against your application profile. No washdown rating here — keep it dry.
The TeSys K family is broadly stocked, so this reversing contactor is a fast mover for maintenance spares and new panel builds alike. Keep one on the shelf if you have multiple machines using this form factor.
Installation and environment notes
The preassembled reversing busbar saves about 15 minutes of wiring per panel on a typical build. Flame retardance meets UL 94 V1 and NF F 16-101/102, which matters for rail and transit applications. Mechanical robustness is specified: closed contactor survives 10 Gn shocks on Y and Z axes, 6 Gn on X (11 ms half-sine). Vibration resistance at 4 Gn closed, 2 Gn open, 5–300 Hz. That's enough for most industrial machinery but not extreme off-road or marine engine mounts.