Schneider Electric LA1KN20 TeSys K 2NO Front Mount Auxiliary Contact Block

The Schneider Electric LA1KN20 is a front-mounting auxiliary contact block from the TeSys K series, designed to expand the switching capability of TeSys K contactors in industrial control and automation applications. Rated with 2 normally open (NO) contacts, the LA1KN20 mounts directly to the front face of compatible TeSys K contactors, enabling additional control circuit functions without increasing panel footprint. Weighing just 45 g, this compact add-on block is ideal for machine builders and panel integrators seeking reliable auxiliary signalling and interlocking.

Technical Specifications

Applications & Use Cases

• Contactor Expansion: Adds 2NO auxiliary contacts to TeSys K contactors for additional control circuit outputs in motor starters and switchgear panels.
• Interlocking Circuits: Enables electrical interlocking between multiple contactors in reversing starter or star-delta starter configurations.
• Status Signalling: Provides auxiliary outputs for PLC digital inputs, indicator lamps, or remote monitoring systems to confirm contactor state.
• Control Panel Integration: Compact front-mount design minimises wiring complexity in space-constrained industrial control panels and MCC assemblies.