Appleton ESR-100 1 Inch Rigid to Emt Set Screw Coupling

Product Description

The APPLETON ESR-100 is a 1-inch rigid-to-EMT set screw coupling designed to join rigid metal conduit to electrical metallic tubing in a single fitting. This transition coupling allows electricians to connect two different conduit systems without requiring an intermediate junction or adapter box. The set screw design provides a secure mechanical connection that holds conduit ends in place during installation. It is a standard raceway fitting used in commercial and industrial electrical rough-in work where conduit transitions are necessary.

This coupling is suited for use in commercial buildings, industrial facilities, and any installation where a transition between rigid metal conduit and EMT is required. It is installed by licensed electricians during conduit rough-in, typically in exposed or concealed raceway systems. The 1-inch trade size accommodates standard 1-inch conduit ends on both the rigid and EMT sides of the connection.

Key Features

• Transitions a 1-inch rigid metal conduit connection to a 1-inch EMT connection in a single fitting
• Set screw fastening method provides a secure mechanical grip on both conduit ends
• Compact coupling profile suitable for tight conduit runs
• Designed for standard trade-size conduit installations per NEC raceway requirements

Compatibility

Designed as an OEM-style fitting for use with 1-inch trade size rigid metal conduit and 1-inch trade size electrical metallic tubing in standard NEC-compliant raceway installations.

Installation Notes

Installation is performed by a licensed electrician. De-energize all circuits in the affected raceway before making conduit connections. Ensure conduit ends are cut square, deburred, and fully seated into the coupling before tightening the set screws. Follow NEC Article 358 for EMT and Article 344 for rigid metal conduit installation requirements.

Technical Specifications

• Trade Size: 1 inch
• Conduit Type Compatibility: Rigid Metal Conduit to EMT
• Connection Type: Set Screw
• UPC: 78312612610

Standard Information

• Brand: APPLETON
• Manufacturer Part Number: ESR-100