The LP5K1210EW3 is a TeSys K reversing contactor from Schneider Electric — a 3-pole unit rated AC-3 at 12 A up to 440 V, with a 48 V DC coil and one normally open auxiliary contact. AC-4 covers plugging and inching, and AC-1 covers resistive loads, so it's not limited to just motor work.
Lifecycle reality — this one's obsolete
Schneider lists the LP5K1210EW3 as obsolete. No factory production or standard lead time applies. Sourcing goes through surplus channels against an RFQ. No official successor order code appears in the record. If you need a drop-in replacement, you'll want to compare the footprint and wiring of the TeSys K frame against current TeSys Deca or TeSys Giga reversing contactors — but that's a cross-reference exercise, not a pin-compatible swap.
The contactor measures 90 mm wide by 58 mm high by 57 mm deep — fits a standard DIN-rail enclosure. Rated for ambient operation from -25 to 50 °C and storage from -50 to 80 °C. Altitude derating kicks in above 2000 m. The V1 flame-retardance rating per UL 94 and NF F 16-101 means it meets rail and industrial fire-safety requirements.
Mechanical and electrical robustness
It'll take 15 Gn shock on the Z axis with the contactor closed, and 10 Gn open — tested per IEC 60068-2-27. Vibration resistance is 4 Gn closed, 2 Gn open across 5-300 Hz. That's enough for most industrial machinery, but not for high-vibration mobile equipment. Coil is 48 V DC. The signalling circuit isolation is tested at 10 MOhm.