Thomas Betts 231 Conduit Bushing 4 in Rigid Imc Plastic

Product Description

The THOMAS BETTS 231 is a plastic, insulated conduit bushing designed for use with rigid metal conduit and intermediate metal conduit (IMC). It installs at the termination point of a conduit run to protect wire insulation from abrasion at the conduit end. The threaded connection type ensures a secure, tool-assisted fit at enclosure knockouts and fittings. Rated for non-hazardous area applications, this bushing is a standard component in commercial and industrial electrical installations where conduit terminates at panels, enclosures, or junction boxes. Electricians specify this 4-inch trade size bushing when transitioning large-diameter conduit into equipment.

This bushing is suited for use in commercial and industrial electrical systems where rigid metal conduit or IMC terminates at an enclosure, panel, or junction box. The 4-inch trade size accommodates large-diameter conduit runs common in power distribution, motor feeder, and service entrance applications. It is appropriate for non-hazardous indoor and outdoor locations where conductor insulation protection at the conduit terminus is required by the NEC. Licensed electricians and electrical contractors are the typical installers of this component.

Key Features

• Plastic construction provides electrical insulation at the conduit termination point
• Insulated design protects wire and cable insulation from conduit edge abrasion
• Threaded connection type for secure, positive engagement with conduit end threads
• 4-inch trade size fits large-diameter rigid and IMC conduit runs
• Rated for non-hazardous area applications
• Single-piece package quantity supports one-for-one replacement and retrofit use

Compatibility

Designed as an OEM-style replacement bushing for 4-inch trade size rigid metal conduit and intermediate metal conduit (IMC) terminations in non-hazardous electrical installations.

Installation Notes

Installation is typically performed by a licensed electrician. De-energize the circuit and lock out the panel or enclosure before working at any conduit termination. Thread the bushing onto the end of the conduit by hand, then tighten with an appropriate conduit bushing wrench to ensure the bushing seats flush against the enclosure wall. Follow NEC Article 300 and local electrical code requirements for conduit termination and conductor protection practices.