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The APPLETON 342-R is a reducing conduit bushing designed to adapt a 3-inch conduit opening down to a 2.5-inch trade size. This type of fitting is used to transition between conduit sizes within an electrical raceway system, allowing installers to connect conduit runs or terminate conduit into enclosures, junction boxes, and panel knockouts of a smaller trade size. It is a standard hardware component handled by licensed electricians and electrical contractors during conduit installation and panel wiring work. The 342-R weighs 1.5 pounds and is built to the dimensional standards expected for metallic conduit fittings.
This reducing bushing is suited for commercial and industrial electrical installations where rigid or intermediate metal conduit is routed through enclosures, pull boxes, or equipment with mismatched knockout sizes. It is commonly used during panel builds, retrofit wiring, and new construction conduit runs where conduit sizing changes are required at termination points. Electricians working with 3-inch conduit systems that must terminate into 2.5-inch knockouts will find this a direct solution.
Designed as an OEM-style reducing bushing for use with 3-inch to 2.5-inch trade-size rigid or intermediate metal conduit systems in commercial and industrial electrical installations.
Installation is performed by a licensed electrician in accordance with NEC requirements for conduit fittings and raceway systems. De-energize all circuits and lock out the panel or enclosure before working on conduit terminations. The bushing should be fully seated and secured per the enclosure manufacturer's requirements. Inspect the bushing seating surface to ensure no damage to conduit threads or the knockout edge before completing the installation.
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