What you're sourcing
The LC2K06103F7 is a TeSys K reversing contactor from Schneider Electric — three poles, rated AC-3 at 6 A up to 440 V, with a 110 V AC coil and one normally open auxiliary contact. It ships preassembled with the reversing power busbar, so you skip the mechanical interlock wiring step on the panel bench. The IP20 finger-safe housing (VDE 0106) suits it for enclosed control panels where live parts aren't exposed during normal operation.
The AC-3 rating at 6 A / 440 V is the motor-switching duty — that's the figure that decides whether it handles your reversing starter for a small conveyor or pump motor. The 690 V AC operational voltage on the power circuit gives headroom for 480 V or 600 V line supplies, though the AC-3 current must be derated above 440 V per the manufacturer's curve. The 110 V AC coil is standard across many panel designs — verify your control transformer output matches. Coil holding voltage is within the 0.85–1.1 x Uc range typical for this class; dropout occurs reliably below the minimum threshold, avoiding welded contacts on brownout.