SCHNEIDER ELECTRIC LADN40 038443

Schneider Electric TeSys LADN40 Auxiliary Contact Block

Description

The LADN40 is an instantaneous auxiliary contact block from Schneider Electric’s renowned TeSys range. It is designed to easily mount on the front of TeSys D and TeSys Deca contactors, providing expanded control and signaling capabilities. This unit features a 4 NO (Normally Open) contact configuration, making it ideal for feedback loops, signaling, and electrical interlocking applications in industrial automation systems.

Specifications

• Manufacturer: Schneider Electric
• Range: TeSys
• Model: LADN40
• Part Number: 038443
• Contact Configuration: 4 Normally Open (4NO)
• Mounting Type: Front Mount
• Terminal Type: Screw Clamp
• Rated Insulation Voltage [Ui]: 690 V AC 25…400 Hz
• Conventional Free Air Thermal Current [Ith]: 10 A (at 60 deg C)

Label Info

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

Application

This auxiliary contact block is typically used in motor control centers (MCCs), industrial control panels, and automation machinery to provide status indication of the main contactor or to create control logic for complex sequences.

Country of Origin

Made in France.

CO2 Impact

Opting for this pre-owned component avoids the emission of approximately 2.0 kg of CO2 compared to manufacturing a new one, supporting sustainable industrial practices.

Availability

This item is in stock and ready for immediate dispatch. Order now from spareparts2day for expert support and fast delivery.

FAQ

Which contactor series is the LADN40 compatible with?

The LADN40 is designed for front mounting on TeSys D, TeSys Deca, and TeSys F contactors, as well as TeSys D control relays. Always check the specific contactor’s datasheet for compatibility.

What is the rated operational current (Ie) for the contacts on this block?

According to IEC 60947-5-1, the rated operational current is typically 10A at up to 60 deg Celsius, with a conventional free air thermal current (Ith) of 10A.

Are there different terminal types available for the LADN40?

This specific model, LADN40, comes with screw clamp terminals. However, Schneider Electric also offers versions with spring terminals or ring lug connections within the same TeSys accessory family.

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Last Update: Friday, March 13, 2026