# Schneider Electric LAD4CM Mechanical Interlock for D40A-D65A Contactors

**URL:** https://aio.lv/en/product--schneider-electric-lad4cm--3956591
**Data updated:** 2026-05-18 02:43 (EEST)
**Category:** Printer & Copier Parts
**Manufacturer:** Schneider Electric
**Manufacturer code:** LAD4CM
**EAN:** 3389119410045
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

The Schneider Electric LAD4CM is a mechanical interlock device designed for use with TeSys D-line contactors, specifically models D40A through D65A. This accessory ensures safe operation by preventing simultaneous closing of two contactors, which is essential for reversing starter circuits and changeover applications. It provides reliable mechanical protection and is easy to install within industrial control panels.

## Long description

The Schneider Electric LAD4CM is a robust mechanical interlock device engineered for integration with TeSys D-line contactors, specifically compatible with models ranging from D40A to D65A. This essential accessory is designed to enhance the safety and reliability of electrical control systems by physically preventing the simultaneous closure of two contactors. By ensuring that only one contactor can be energized at any given time, it effectively eliminates the risk of short circuits in reversing starter configurations and power changeover applications.
Advantages
This mechanical interlock offers a high level of operational safety by providing a rigid physical barrier that prevents accidental activation of opposing contactors. Its design is optimized for seamless integration with Schneider Electric TeSys D-line components, ensuring a precise fit and reliable performance within industrial control panels. The installation process is straightforward, allowing for quick deployment without the need for complex modifications to existing control setups. By utilizing this device, users can significantly reduce the risk of electrical faults and extend the service life of their switching equipment.
Suitable for
Reversing starter circuits
Power changeover applications
Industrial motor control systems
Automated switching sequences
When it may not be suitable
This device is specifically engineered for use with Schneider Electric TeSys D40A through D65A contactors and is not compatible with other contactor series or sizes. It should not be used in applications where electrical interlocking is the sole requirement without the need for physical mechanical prevention.
Key specifications
Compatibility: TeSys D-line contactors D40A to D65A
Function: Mechanical interlocking of two contactors
Application: Reversing and changeover circuits
Mounting: Internal panel installation
How to use
To install the LAD4CM mechanical interlock, ensure that the power supply to the contactors is completely disconnected. Align the interlock device between the two contactors according to the manufacturer's mounting instructions. Secure the device firmly to ensure that the mechanical linkage is correctly positioned to block the simultaneous operation of the contactor armatures. Once installed, perform a manual test to verify that the interlocking mechanism prevents both contactors from closing at the same time before restoring power to the system.
What to consider before purchase
Verify the model numbers of your existing contactors match the D40A-D65A range.
Ensure there is sufficient physical space within the control panel for the interlock assembly.
Confirm that the application requires mechanical rather than purely electrical interlocking.
Usage recommendations
Always verify the mechanical operation of the interlock after installation and during routine maintenance to ensure the safety mechanism remains functional and free from debris.

## FAQ

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Schneider Electric products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Schneider Electric service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/3956591/58628880_large.webp