Schneider Electric LA4KE1UG Contactor Suppressor Module

Product Description

The SCHNEIDER ELECTRIC LA4KE1UG is a contactor suppressor module designed to reduce electrical interference and voltage spikes generated when a contactor coil de-energizes. By absorbing transient energy at the source, it protects nearby sensitive components and extends the service life of the contactor. The LA4KE1UG is a compact accessory — measuring 1.5 inches in length, 1 inch in width, and 0.3 inches in height — that mounts directly to compatible contactor bodies. Electricians and controls technicians install this module during new panel builds or as part of a contactor replacement or troubleshooting service.

This suppressor module is suited for light commercial and industrial control panel applications where coil-generated electrical noise can interfere with PLCs, low-voltage control circuits, or other sensitive electronics sharing the same enclosure. It installs without additional hardware directly onto compatible contactors, making it a straightforward addition during a scheduled maintenance call or retrofit.

Key Features

• Suppresses inductive voltage spikes from contactor coil de-energization
• Compact form factor: 1.5 inches x 1 inch x 0.3 inches
• Direct-mount accessory — no additional mounting hardware required
• Helps protect PLCs and sensitive low-voltage control devices in shared enclosures
• Lightweight at 0.01 pounds for easy handling during installation

Compatibility

The LA4KE1UG is designed for use with LC1, LP1, and TeSys K series contactors as stated by the manufacturer.

Installation Notes

Installation should be performed by a licensed electrician or qualified controls technician. De-energize and lock out the control panel before installing or removing any contactor accessory, following NFPA 70E arc flash and lockout/tagout procedures. The module snaps onto the contactor body — verify correct seating before restoring power. Consult the contactor and suppressor module documentation to confirm proper orientation and fitment.