Thomas Betts TK227SC Emt Conduit Coupling 2-1/2 Inch

Product Description

The THOMAS BETTS TK227SC is a set-screw conduit coupling designed for use with electrical metallic tubing (EMT). It provides a secure, non-insulated metal-to-metal connection between two sections of EMT conduit at a 2-1/2 inch trade size. Constructed from die cast zinc, it is rated for concrete-tight applications, making it suitable for installations where the raceway will be embedded or in contact with concrete. Licensed electricians and electrical contractors install this fitting as part of branch circuit and feeder conduit runs in both commercial and residential electrical systems.

This coupling is used in EMT conduit systems where a mechanical set-screw connection is required at 2-1/2 inch trade size. Its concrete-tight rating makes it appropriate for slab, pour-in-place, and masonry applications where conduit joints must resist moisture infiltration during and after concrete placement. It is a standard choice for junction and transition points along horizontal and vertical EMT runs in commercial construction, industrial facilities, and residential service installations.

Key Features

• Set-screw connection type for positive mechanical engagement without threading
• Die cast zinc construction provides corrosion resistance and structural integrity
• Concrete-tight rated for embedded or masonry conduit installations
• Non-insulated design for standard EMT metallic raceway continuity
• 2-1/2 inch trade size fits standard 2-1/2 inch EMT conduit

Compatibility

Designed for use with 2-1/2 inch trade size EMT conduit in concrete-tight set-screw coupling applications.

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 conduit run before making any connections or modifications. Tighten set screws to manufacturer specification using an appropriate hex key or screwdriver to ensure a secure, code-compliant mechanical connection. Verify that the conduit ends are clean, burr-free, and fully seated before securing the coupling.