The Schneider Electric LA9D50978 is a mechanical interlock designed for use with TeSys D contactors in the LC1D80 to LC1D95 series. This accessory ensures that two contactors cannot be energized simultaneously, preventing dangerous operational states in motor control circuits. It is a critical safety component for applications requiring reliable interlocking of motor starters.

Technical details

• Series: TeSys D
• Compatible Contactors: LC1D80, LC1D85, LC1D95
• Functionality: Mechanical interlock
• Coil Type Compatibility: AC coil
• Mounting: Designed for direct attachment to specified TeSys D contactors.
• Purpose: Prevents simultaneous energization of two contactors.
• Construction: Robust mechanical design for industrial environments.

Applications & compatibility

This mechanical interlock is essential for applications where two motor circuits must be mutually exclusive, such as reversing motor starters or transfer switches. It is commonly found in control panels for packaging machinery, material handling systems, and other industrial equipment requiring safe and reliable motor control sequencing.

Available from Industrial Automation Co as new, refurbished, or surplus stock, backed by a 2-year warranty with same-day shipping on in-stock items. Request a quote for the LA9D50978 or contact our technical team for cross-reference assistance with compatible TeSys D components.