The LC2K09103F7 is a TeSys K reversing contactor from Schneider Electric — a 3-pole unit rated AC-3 at 9 A up to 440 V, with a 110 V AC coil and one normally-open auxiliary contact. It comes preassembled with the reversing power busbar, so it's ready to drop into a panel for forward/reverse motor control of a small induction motor, typically a pump or conveyor drive under 4 kW at 400 V. The AC-3 rating (9 A at 440 V) means it's designed for starting and stopping squirrel-cage motors — the most common duty for contactors this size. The AC-1 rating covers resistive loads like heaters, and AC-4 covers plugging and inching, though the 9 A frame limits that to lighter duty cycles. The 110 V AC coil is standard for North American control circuits; verify your control transformer matches before wiring.
Sourcing reality — obsolete, but still sourced
The TeSys K series has been superseded by the TeSys D range for new designs, but the physical footprint and busbar arrangement differ. If you're replacing a failed unit in an existing panel, the LC2K09103F7 is the part you need — a TeSys D reversing contactor will require re-wiring and possibly a new busbar kit. No pin-compatible direct substitute exists within the same family.
The preassembled reversing busbar saves wiring time but locks the phase sequence; verify your motor rotation direction before powering up. The 110 V AC coil draws a modest inrush; check your control transformer VA rating if you're ganging multiple contactors on the same circuit. The single NO auxiliary contact is built in — if you need more feedback signals (e.g., for a PLC input or status lamp), add a side-mount auxiliary contact block from the TeSys K range.