SCHNEIDER ELECTRIC LADN40

Schneider Electric LADN40 TeSys D Auxiliary Contact Block

Description

The LADN40 is an auxiliary contact block from Schneider Electric’s highly regarded TeSys D range. It is designed for front mounting on TeSys D and TeSys F contactors to expand their control and signaling capabilities. This block provides four normally open (NO) contacts, making it ideal for interlocking, status indication, and other control logic functions in industrial automation and motor control systems.

Specifications

• Manufacturer: Schneider Electric
• Product Range: TeSys D
• Model: LADN40
• Contact Configuration: 4 NO (Normally Open)
• Conventional Free Air Thermal Current (Ith): 10 A
• Rated Insulation Voltage (Ui): 690 V AC
• Terminals: Screw Clamp
• Mounting: Front Mount

Label Info

• Ith: 10 A
• Ui: 690 V
• Standard: IEC/EN 60947-5-1
• Compatibility: For use with contactors LC.D / CAD / LC.F

Application

This auxiliary contact block is typically used in motor control centers (MCCs), industrial control panels, and automation systems. It provides feedback on the contactor’s state, enables electrical interlocking between two or more contactors, and facilitates the integration of the contactor into a larger control scheme.

Country of Origin

Made in France.

CO2 Impact

Choosing this pre-owned component saves approximately 2.0 kg of CO2 compared to manufacturing a new one, which is equivalent to the emissions from driving a car for 10 kilometers.

Availability

Available for immediate dispatch. Order now from spareparts2day for expert support and fast delivery.

FAQ

Question?
What specific contactor series is the LADN40 compatible with?

Answer
The LADN40 is designed for the Schneider Electric TeSys D, TeSys D control relay, TeSys F, and TeSys K contactor series. It mounts directly onto the front face of these devices.

Question?
How is the LADN40 physically mounted to a contactor?

Answer
The LADN40 features a clip-on mechanism for front mounting. It securely snaps onto the front of a compatible contactor without the need for any tools, ensuring a quick and reliable installation.

Question?
What is the maximum switching current for the contacts under an AC-15 utilization category?

Answer
Under the AC-15 (control of AC electromagnetic loads) utilization category, the contacts are rated for 10 A at 240 V AC and 2.5 A at 440 V AC, as per the IEC 60947-5-1 standard.

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Last Update: Friday, March 13, 2026