Schneider Electric LADN31 Auxiliary Contact Block

Schneider Electric LADN31 Auxiliary Contact Block is a TeSys Deca accessory that adds four auxiliary contacts to compatible LC1D09 to LC1D150 contactors, delivering three normally open (NO) contacts and one normally closed (NC) contact for signaling and interlock logic. This top-mount block uses screw-clamp terminals for secure wiring and is designed to integrate with Schneider Electric TeSys D (Deca) devices, providing plug-in compatibility across the LC1D range without modifying the main power circuit. By expanding the contactor’s auxiliary contacts, it supports status feedback to PLCs, control relays, and sequencing circuits in applications such as conveyors, pumps, machine tools, and other automation equipment where compact, reliable auxiliary signaling is required. The LADN31 is built to withstand industrial environments, maintaining consistent electrical performance within Schneider Electric’s TeSys D family and offering a straightforward method to scale control functionality as system complexity grows.