Halex 12401B 3/4 Inch Emt Set Screw Coupling 25 Pack

Product Description

The HALEX SCOTT FETZER 12401B is a 3/4-inch electrical metallic tubing (EMT) set screw coupling rated for concrete-tight applications. It joins two lengths of EMT conduit end-to-end, maintaining a secure, rigid connection in both dry and embedded installations. This pack includes 25 couplings, making it a practical contractor-quantity option for larger rough-in jobs. The set screw design allows fast installation without special tools, and the concrete-tight rating means these couplings can be embedded directly in concrete poured decks, slabs, or walls. Licensed electricians install these as part of conduit runs on commercial, residential, and industrial projects.

The 12401B is suited for 3/4-inch EMT conduit runs in dry locations or where the conduit will be encased in concrete. Typical applications include branch circuit rough-in, equipment feeder runs, and exposed or embedded conduit systems in commercial buildings, multi-family residential construction, and industrial facilities. The 25-piece contractor pack reduces trips to supply for high-volume installation work. Both UL and CSA listings confirm the couplings meet North American safety standards for electrical metallic tubing fittings.

Key Features

• Concrete-tight rating suitable for direct embedment in poured concrete
• Set screw design for fast, tool-minimal installation on 3/4-inch EMT
• Joins two EMT conduit lengths for continuous, rigid conduit runs
• Rated for dry and concrete-tight locations per listing requirements
• UL and CSA listed for North American electrical installations
• 25-piece contractor pack reduces restocking interruptions on larger jobs

Compatibility

Designed as an OEM-style replacement fitting compatible with standard 3/4-inch electrical metallic tubing conduit systems in dry or concrete-encased installations.

Installation Notes

Installation is performed by a licensed electrician in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize all circuits in the conduit run before making or modifying connections. Ensure EMT conduit ends are reamed and deburred before seating them fully into the coupling before tightening the set screw. When embedding in concrete, verify that all fittings are rated concrete-tight and that conduit is supported per NEC requirements before the pour.