Eaton XTMCXML Mechanical Interlock

Product Description

The EATON XTMCXML is a mechanical interlock accessory designed for use with compatible EATON contactor assemblies. Mechanical interlocks prevent two contactors from closing simultaneously, a critical safety function in reversing starter and transfer switching applications. This type of interlock mounts directly between paired contactors and uses a physical linkage to enforce mutual exclusion without relying on auxiliary electrical contacts alone. It is installed by licensed electricians and industrial maintenance technicians working on motor control and power distribution equipment.

Mechanical interlocks of this type are used in commercial and industrial electrical systems where reversing motor starters, dual-source transfer schemes, or other two-contactor arrangements require a hard mechanical barrier against simultaneous engagement. Typical installations include motor control centers, control panels, and machine tool enclosures where fail-safe interlocking is required by code or equipment design.

Key Features

• Mechanical interlock type enforces mutual exclusion between paired contactors without auxiliary relay dependency
• Direct-mount accessory designed to install between two mating contactors
• Supports reversing starter and dual-contactor transfer applications
• Reduces risk of phase-to-phase fault caused by simultaneous contactor closure

Compatibility

Designed as an OEM-style mechanical interlock accessory for use with compatible EATON contactor models. Consult EATON documentation to confirm fitment with specific contactor frame sizes and series before installation.

Installation Notes

Installation should be performed by a qualified electrician in accordance with NFPA 70 (NEC) and applicable local codes. De-energize and lock out the panel or motor control center before mounting or removing any contactor accessory. Verify that the interlock linkage moves freely and that both contactors are properly aligned before restoring power. Do not attempt to force the linkage or bypass the interlock mechanism.

Technical Specifications

• Interlock Type: Mechanical
• UPC: 01508010113

Standard Information

• Brand: EATON
• Manufacturer Part Number: XTMCXML