The Schneider Electric LC2K1610FC72 is a TeSys K reversing contactor — a 3-pole, 3 NO power pole unit rated for AC-3 duty at 16 A up to 440 V, with a 127 V AC coil and one built-in NO auxiliary contact. It ships preassembled with the reversing power busbar, so you skip the mechanical interlock wiring and busbar assembly step on the panel bench. The AC-4 rating covers plugging and inching duty, where the contactor breaks stalled-rotor current. For a reversing pair, AC-4 is the tougher cycle; this contactor carries both categories. The coil pulls 127 V AC — common in North American control transformers and older European panels. IP20 finger-safe terminals per VDE 0106 keep the panel builder out of trouble during commissioning.
The protective treatment (TC per IEC 60068 and DIN 50016) indicates the contactor has passed a damp-heat cyclic test — relevant if the panel sees condensation or high-humidity environments. No special coating or conformal coating is listed beyond this standard treatment.