Eaton MSH-81A Ms Series Auxiliary Contact

Product Description

The EATON MSH-81A is an auxiliary contact module designed for use with the MS Series line of manual motor starters. It mounts directly to the starter body, expanding the unit's signaling and interlocking capability without adding significant bulk to the assembly. The module is rated for single-phase applications and provides supplemental contact output for control circuit integration. Electricians and industrial control technicians install this type of accessory when a system requires feedback signaling, remote indication, or interlocking logic tied to the motor starter's switch state.

The MSH-81A is suited for light industrial and commercial electrical panel applications where MS Series manual motor starters are already in service. It is a direct add-on accessory that snaps or mounts onto compatible EATON MS Series starter frames. The module is appropriate for both new installations and field upgrades to existing starter assemblies where auxiliary contact output is needed for control wiring.

Key Features

• Auxiliary contact module for EATON MS Series manual motor starters
• Single-phase rated for compatible starter configurations
• Compact form factor at 2.2 inches x 1.3 inches x 0.8 inches
• Direct-mount accessory design for simplified field installation
• Lightweight at 0.01 pounds for minimal load on the starter assembly

Compatibility

Designed for use with EATON MS Series manual motor starters in single-phase configurations. Verify frame size and series designation against the starter model before ordering to confirm proper fit.

Installation Notes

Installation should be performed by a licensed electrician in accordance with applicable NEC requirements. De-energize and lock out the circuit before attaching or removing any accessory module from the starter assembly. Confirm the auxiliary contact rating is appropriate for the control circuit voltage and current before wiring. Do not force the module onto an incompatible starter frame.

Technical Specifications

• Phase: 1-Phase
• Length: 2.2 inches
• Width: 1.3 inches
• Height: 0.8 inches
• Weight: 0.01 pounds
• UPC: 78667824132

Standard Information

• Brand: EATON
• Manufacturer Part Number: MSH-81A