The Schneider Electric TeSys Deca LADR29 is an off-delay auxiliary contact block with 1 normally open and 1 normally closed pole, designed for front mounting on TeSys Deca contactors or reversing starters. The time delay range is adjustable from 1 to 30 seconds, and the contacts are rated for 6 A at 120 V AC-15 (inductive) and 0.55 A at 125 V DC-13.
The off-delay function means the NC contact changes state immediately on coil de-energisation, then the NO contact returns to its rest position after the set delay — useful for sequencing motor starter drop-out or staging fan coast-down. The 1.5 ms non-overlap time between NC and NO on both energisation and de-energisation ensures break-before-make, preventing momentary cross-conduction in reversing or star-delta circuits. Termination is via Faston connectors (0.25 in / 6.35 mm tabs), common for panel wiring with pre-crimped leads or quick-connect receptacles.
Mounts on the front of a TeSys Deca contactor or reversing starter, adding time-delay auxiliary contacts without increasing the contactor's panel depth. The block dimensions are 1.7 in wide × 1.9 in high × 2.4 in deep (44 × 48 × 61 mm).