Overview
The LADN31P is a TeSys Deca auxiliary contact block from Schneider, wired as 3 normally-open and 1 normally-closed instantaneous contacts. It mounts to the front of TeSys D and F contactors, using screw clamp terminals that accept 1 to 2.5 mm² flexible or rigid wire. Rated for 6 A switching at 690 V insulation voltage, it carries a 1.5 ms non-overlap between NO and NC on both energisation and de-energisation, and is certified to IEC 60947-5-1, UL 60947-5-1, CSA, CCC, and EAC.
Selection vs LADN40A
The LADN31P carries 3 NO + 1 NC contacts; the LADN40A carries 4 NO. If your circuit needs a dedicated normally-closed feedback path, the LADN31P provides one without adding a second block. The LADN31P uses screw clamp terminals (1 to 2.5 mm²), while the LADN40A uses snap-in terminals (1 to 4 mm²) — choose the LADN31P when your panel wiring standard calls for screw clamps.
The LADN31P is in active production. Lead time is confirmed per RFQ; no end-of-life notice is published. It is a direct fit for any TeSys D or F contactor in the listed range, so BOM freeze and panel builds can proceed without substitution risk.