Schneider Electric (Square D) LADN40 Auxiliary Contacts 4 N/O

The Schneider Electric (Square D) LADN40 Auxiliary Contacts is a supplementary contact system for motor starters and contactors. This 4 N/O configuration block provides control circuit flexibility by enabling signaling and enabling operations. These contacts find their applications in HVAC systems where they operate in air handling units and chillers to support automation and safety interlocks. Users gain better control capabilities and their systems achieve longer operational operateality. This part provides sequencing operation monitoring to provide both reliable and efficient HVAC system performance.