The LADN226J is an auxiliary contact block in the TeSys Deca range, designed for front mounting on TeSys contactors and reversing starters. It provides 2 normally-open and 2 normally-closed instantaneous contacts, wired via lugs-ring terminals (8 mm external diameter). The AC-15 rated operational current reaches 6 A at 120 V, while DC-13 duty supports 0.55 A at 125 V — enough for pilot-duty solenoid and relay loads in control circuits.
The minimum switching threshold of 5 mA at 17 V means this block can handle dry-contact logic signals from PLC inputs or low-power sensors without contact wetting issues — a common pain point when auxiliary contacts are used for electronic controllers rather than heavy relays. Making capacity of 140 A AC and 250 A DC (per IEC 60947-5-1) means the contacts can close onto a faulted or highly capacitive load without welding, which matters when the block is used to energise contactor coils or small motor starters. Mechanical durability of 30 million cycles is high for an auxiliary block — it outlasts many contactor main poles, so this block can be specified for high-cycle applications like conveyor diverters or packaging line indexing without becoming the wear-out item.
Front-mounting on the contactor means the block occupies the same DIN-rail footprint as the base unit — no extra rail space needed. Dimensions of 44 mm wide, 48 mm high, and 42 mm deep keep the assembly compact inside a control cabinet. IP20 protection (IEC 60529) is standard for enclosed panel gear — finger-safe but not washdown-rated. The dark grey colour matches the TeSys Deca family aesthetic for consistent panel appearance.
Approvals include IEC 60947-5-1, UL 60947-5-1, and CSA C22.2 No 60947-5-1, plus TH protective treatment per IEC 60068 for tropical environments. This covers most global panel specifications without needing a special variant.