The Schneider Electric LA9D09978 is a mechanical interlock designed for use with specific Schneider Electric contactors. This accessory is engineered to prevent simultaneous energization of two contactors, a critical safety function in motor control circuits. It is part of Schneider Electric's extensive range of control components, ensuring robust performance in demanding industrial environments.

Technical details

• Series: LA9 Series Interlock
• Compatibility: Designed for Schneider Electric contactors in the 9-25 Ampere range (e.g., LC1D09, LC1D12, LC1D18, LC1D25).
• Function: Mechanical interlock to prevent simultaneous closing of two contactors.
• Mounting: Front-mounting configuration.
• Actuation: Operates via the physical movement of the associated contactors.
• Material: Durable construction for industrial applications.
• Environmental Rating: Suitable for standard industrial operating conditions.

Applications & compatibility

This interlock is essential for applications requiring redundant or reversing motor control configurations where the simultaneous activation of two contactors must be physically prevented. Common uses include reversing motor starters for conveyor systems, cranes, hoists, and other machinery where directional control is critical and operator or equipment safety depends on preventing conflicting commands.

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 Schneider LA9D09978 or contact our technical team for cross-reference assistance with compatible contactor models.