Southwire ELR10 4-in Aluminum Set-screw Emt Coupling

Product Description

The SOUTHWIRE ELR10 is a 4-inch aluminum set-screw coupling designed for use with electrical metallic tubing (EMT) conduit systems. This fitting connects two sections of EMT conduit end-to-end, securing the joint with set screws for a reliable mechanical connection. Aluminum construction keeps weight low while providing corrosion resistance suitable for a range of installation environments. Licensed electricians install this type of fitting during rough-in and finish wiring stages on both new construction and retrofit projects. At 8 pounds, this package is sized for job-site use by electrical contractors working with larger conduit runs.

The ELR10 is suited for 4-inch EMT conduit installations in commercial and industrial electrical work. Typical applications include branch circuit wiring, feeder runs, and equipment connection in panel rooms, mechanical spaces, and exposed conduit systems. The set-screw design allows for straightforward field installation without specialized crimping tools, making it a practical choice for high-volume conduit runs where speed and repeatability matter.

Key Features

• 4-inch trade size for use with 4-inch EMT conduit
• Aluminum construction for lightweight handling and corrosion resistance
• Set-screw securing method for positive mechanical connection
• Connects two EMT conduit sections in a straight-line coupling configuration
• Suitable for commercial and industrial conduit installations

Compatibility

Designed as an OEM-style replacement and standard fitting for 4-inch EMT conduit systems in commercial and industrial electrical installations.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize all circuits in the work area before assembling or modifying conduit runs. Tighten set screws using the appropriate hex key or driver to achieve a secure mechanical connection without stripping the screw heads. Inspect conduit ends for burrs or deformation before coupling to ensure proper seating and electrical continuity.

Technical Specifications

• Trade Size: 4 inches
• Material: Aluminum
• Connection Type: Set-screw
• Conduit Type: EMT
• Package Weight: 8 pounds

Standard Information

• Brand: SOUTHWIRE
• Manufacturer Part Number: ELR10