The Schneider Electric LP1K09103ED is a TeSys K series contactor with 3 normally-open power poles, rated for AC-3 switching duty at 9 A up to 440 V, plus one NO auxiliary contact. The coil is 48 V DC, drawing 3 W holding power at 20 °C. It also carries an AC-1 resistive rating of 20 A and an AC-4 category for high-inrush loads like plugging or inching. Flame retardance meets UL 94 V1 and NF F 16-101/102 requirements, which matters for rail and transit panel compliance. The compact footprint — 45 mm wide, 58 mm tall, 57 mm deep — fits standard DIN-rail enclosures where panel space is tight.
This part is marked obsolete by the manufacturer. If you're qualifying a replacement, the TeSys K family shares the same panel footprint and coil voltage options, but pin compatibility and aux contact arrangement must be verified per your circuit.
The AC-3 rating of 9 A is the figure that governs motor switching — it's the current the contactor can make and break across a standard squirrel-cage motor starting profile. The AC-1 rating of 20 A applies to resistive loads only; don't substitute it for the motor duty figure. The 48 V DC coil is common in control circuits fed from a 48 V battery-backed bus or a DC power supply; verify your control voltage matches the coil tolerance band (typically 0.7–1.2× nominal for DC-operated TeSys K contactors).