Schneider Electric LA9FF970 Contactor Mechanical Interlock

Product Description

The SCHNEIDER ELECTRIC LA9FF970 is a mechanical interlock accessory designed for use with contactors in motor control and switching applications. This interlock prevents two contactors from engaging simultaneously, which is essential in reversing or star-delta starter configurations where simultaneous closure would cause a fault condition. Licensed electricians and industrial controls technicians install this component as part of a complete contactor assembly. It mounts between two horizontal contactors in the TeSys F product family and measures 3.8 inches in length, 3.2 inches in width, and 2.3 inches in height.

The LA9FF970 interlock is intended for use in industrial and commercial electrical control panels where TeSys F series contactors are deployed. Typical applications include motor reversing circuits, multi-speed motor starters, and other configurations requiring mutually exclusive contactor operation. The interlock is a direct accessory for horizontal contactor arrangements within the TeSys F family and is sold individually as a single-unit package.

Key Features

• Prevents simultaneous closure of two contactors for safe reversing and switching operation
• Designed for use with TeSys F series horizontal contactors
• Compact form factor: 3.8 inches long, 3.2 inches wide, 2.3 inches tall
• Lightweight at 0.23 pounds for easy panel integration
• Single-unit packaging with no minimum order multiple requirement

Compatibility

Designed for use with Horizontal Contactors and TeSys F series contactors as stated by the manufacturer. No other specific model compatibility data was provided in the product input.

Installation Notes

Installation should be performed by a qualified electrician in accordance with NEC requirements and applicable local codes. De-energize and lock out the control panel before installing or removing the interlock. The interlock mounts mechanically between two contactors and must be seated fully before restoring power. Verify proper alignment and mechanical operation of both contactors after installation.