Schneider Electric TeSys LADN40 Auxiliary Contact Block

Description

The Schneider Electric LADN40 is an instantaneous auxiliary contact block for TeSys D and TeSys Deca contactors. It provides 4 normally open (NO) contacts, allowing for expanded control and signaling capabilities in motor control applications. Its front-mounting design ensures quick and easy installation. This block is a standard component for creating electrical interlocks and providing status feedback to control systems like PLCs.

Specifications

• Manufacturer: Schneider Electric
• Product Range: TeSys Deca, TeSys D
• Model: LADN40
• Part Number: 038443
• Contact Configuration: 4 NO (Normally Open)
• Mounting Type: Front Mount
• Terminal Type: Screw Clamp

Label Info

• Model: LADN40
• Part Number: 038443
• EAN: 3389110384437

Application

Ideal for industrial automation, motor control centers (MCC), and any application requiring additional feedback or control logic from a contactor. Common uses include signaling contactor status, interlocking between multiple motors, and enabling auxiliary control circuits.

Country of Origin

Made in France.

CO2 Impact

Opting for this component helps avoid the emission of approximately 2.0 kg of CO2 compared to manufacturing a new one. This is a sustainable choice for your industrial needs.

Availability

This item is in stock and ready for immediate dispatch. Order now from PLC2Day for expert support and fast delivery.

FAQ

What is the main application for the LADN40 contact block?

The LADN40 is primarily used to add signaling or interlocking contacts to a main power contactor. The four normally open (NO) contacts can be used to indicate the contactor's status (on/off) to a PLC, enable other control devices, or create electrical interlocks between multiple contactors.

Yes, the LADN40 is designed for forward and backward compatibility. It can be front-mounted on both the classic TeSys D series contactors (e.g., LC1D models) and the newer green TeSys Deca range, ensuring flexibility for both maintenance of existing systems and new installations.

This model features screw clamp terminals. For reliable and safe connections, Schneider Electric recommends a tightening torque of 1.2 N.m. It is crucial to use the correct torque to prevent loose connections or damage to the terminal screws.

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Last Update: Friday, March 13, 2026