Overview
The LADN31R is a Schneider TeSys Deca auxiliary contact block, order code LADN31R, with a 3 NO + 1 NC contact configuration. It is rated for 6 A switching current and uses screw-clamp terminals for wiring. This part is officially discontinued by Schneider.
Function & operation
As an auxiliary contact block, the LADN31R provides additional signal contacts that follow the state of the main contactor or relay it is mounted on. The 3 NO + 1 NC arrangement offers three normally-open and one normally-closed auxiliary circuits. The contacts are rated for a making capacity of 140 A AC and 250 A DC per IEC 60947-5-1, and can withstand short-time currents of 100 A for 1 s, 120 A for 500 ms, and 140 A for 100 ms at 60 °C.
Applications
This block is designed for use with TeSys D CAD, TeSys D LC1D, TeSys Deca CAD, TeSys Deca LC1D, TeSys F LC1F, and TeSys F CR1F contactors. It is suitable for industrial control panels, motor control centers, and automation systems where auxiliary signaling or interlocking is required. The IP2X rating allows installation in standard enclosed panels.