Description
The Schneider Electric (Square D) LAD4CM is a mechanical interlock kit engineered for use with TeSys D-series contactors rated from D40A to D65A. Designed to prevent two contactors from being simultaneously energized, this interlock kit is an essential safety accessory for reversing starter and transfer switching applications in commercial and industrial HVAC systems.
Key Features
- Mechanical interlock prevents simultaneous energization of two paired contactors
- Compatible with Schneider Electric TeSys D-series contactors rated D40A through D65A
- Ideal for reversing starter configurations and forward/reverse motor control applications
- Provides a positive mechanical lockout — independent of electrical control circuits
- Snap-on installation for quick, tool-friendly assembly between two contactors
- Durable construction designed for long service life in demanding industrial and commercial environments
- Genuine Schneider Electric (Square D) OEM accessory for assured compatibility
Application
The LAD4CM mechanical interlock kit is commonly used in HVAC motor control centers, air handling unit reversing starters, pump control panels, and other applications where two contactors must be interlocked to prevent dangerous simultaneous closure. By providing a physical barrier between the two contactor armatures, the LAD4CM adds a critical layer of protection beyond electrical interlocking alone.
Compatibility
- TeSys D contactor range: D40A to D65A
- Designed for use with LC1D and LC2D series contactors in the applicable frame size
Product Details
- Brand: Schneider Electric (Square D)
- SKU / Part Number: LAD4CM
- Type: Mechanical Interlock Kit
- Contactor Range: D40A to D65A







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