The Schneider Electric TeSys K LP2K12004MPD3 is a 4-pole changeover (reversing) contactor preassembled with a reversing power busbar, designed for control applications switching resistive loads under AC-1 utilisation category. Its 230 V DC coil includes a built-in bidirectional peak limiting diode suppressor, meaning you don't need an external flyback diode across the coil — the suppression is integrated, saving panel space and one wiring step.
Rated for AC-1 duty at 20 A (Ith), the contactor handles resistive loads like heaters or lighting banks. The 3 mOhm average impedance on the power circuit keeps heat dissipation low at 3 W, so it won't cook adjacent components in a dense panel. Rated breaking capacity reaches 110 A at 440 V, 80 A at 500 V, and 70 A at 660–690 V per IEC 60947 — that's the fault-clearing ability if a short occurs downstream, not the continuous rating. The associated fuse recommendation is 25 A gG or aM on the power circuit. Mechanical interlocking between the two contactor halves is built in, preventing both coils from pulling in simultaneously — critical for reversing drives where a simultaneous close would short the phases.
Mounts on a DIN rail or plate; dimensions are 90 mm wide, 58 mm high, 57 mm deep — fits a standard 4-module-wide footprint on a 35 mm rail. Screw clamp terminals accept 1.5–4 mm² solid or 0.34–2.5 mm² flexible with ferrules; torque to 1.3 Nm with a No. 2 Philips or 6 mm flat blade.
Compliant with IEC 60947-4-1, UL 508 (600 V insulation), CSA C22.2 No 14, and VDE 0660. Flame retardance meets UL 94 V1 and NF F 16-102. Safety reliability data per EN/ISO 13849-1 gives B10d of 1,369,863 cycles at nominal load — useful for safety circuit MTBF calculations.