Schneider Electric LADN01 TeSys D 1NC Front Mount Auxiliary Contact Block

The Schneider Electric LADN01 is a TeSys D series front-mount auxiliary contact block designed to expand the control circuit capabilities of TeSys D contactors. Featuring a 1NC (normally closed) contact configuration, the LADN01 mounts directly to the front face of compatible TeSys D contactors, enabling reliable status signalling and interlocking in industrial automation and control panel applications.

Technical Specifications

Applications & Use Cases

• Contactor status signalling: Provides a normally closed auxiliary contact for monitoring and feedback circuits on TeSys D contactors in motor control centres and switchgear panels.
• Interlocking circuits: Used in control panels to implement electrical interlocking between contactors, preventing simultaneous energisation in reversing or star-delta starter configurations.
• Industrial automation: Integrates with PLCs and control systems as a reliable hardwired input signal from contactor auxiliary contacts in manufacturing, process, and building automation applications.
• Control panel expansion: Adds auxiliary contact functionality to TeSys D contactors where additional control circuit contacts are required beyond the standard built-in contacts.