Thomas Betts 8120 Conduit Coupling 1/2 in Rigid Imc Malleable Iron

Product Description

The THOMAS BETTS 8120 is a non-insulated compression conduit coupling designed for joining rigid metal conduit (RMC) and intermediate metal conduit (IMC) in trade size 1/2 inch. Constructed from malleable iron, this coupling delivers reliable mechanical strength and is rated for concrete-tight applications. The compression connection style eliminates the need for threading tools on site, allowing faster assembly while maintaining a secure, watertight joint suitable for direct burial or encasement in concrete. Licensed electricians and electrical contractors install this fitting as part of conduit runs in residential, commercial, and industrial installations.

This coupling is suited for conduit systems where a concrete-tight rating is required, such as in slab-on-grade pours, underground encasement, or exposed exterior runs where moisture ingress must be controlled. The 1/2 inch trade size makes it a high-frequency item in panel feed runs, branch circuit rough-in, and equipment connection conduit assemblies. The compression design seats firmly without threads, reducing installation time compared to threaded fittings in field conditions.

Key Features

• Concrete-tight compression connection — no threading required at the joint
• Malleable iron construction for high mechanical strength and durability
• Compatible with both rigid metal conduit and IMC in 1/2 inch trade size
• Non-insulated design appropriate for standard grounding continuity through the conduit system
• Rated for concrete-encased and direct-contact installations

Compatibility

Designed for use with 1/2 inch trade size rigid metal conduit (RMC) and intermediate metal conduit (IMC) in concrete-tight conduit system 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 conduit run before beginning work. Compression fittings must be fully seated and tightened to the manufacturer's specification using appropriate hand tools to ensure a concrete-tight seal. Inspect the fitting for cracks or deformation before encasement — once concrete is poured, the fitting cannot be accessed for correction.