Appleton 328-R Reducing Bushing 1-1/2 X 1 Inch

Product Description

The APPLETON 328-R is a threaded reducing bushing designed to transition conduit or fitting connections from a 1-1/2 inch trade size to a 1 inch trade size. Reducing bushings of this type are standard hardware in electrical raceway assemblies, used to adapt knockouts, locknuts, and enclosure hubs when the installed conduit or fitting is a smaller trade size than the opening. The 328-R is a compact, low-profile component that keeps conduit runs tight and code-compliant without requiring a full fitting replacement. Electricians reach for this part during panel work, junction box installations, and conduit body assemblies whenever a trade size step-down is required.

This reducing bushing is suited for commercial and residential electrical installations where rigid metal conduit, intermediate metal conduit, or threaded fittings require a size reduction at a box or enclosure entry point. It is a commonly stocked consumable on service trucks and in panel shops. The compact packaging dimensions of 6 inches x 5 inches x 0.300 inches reflect its minimal footprint, making it easy to store in bulk quantities.

Key Features

• Steps down a 1-1/2 inch threaded opening to accept a 1 inch conduit or fitting
• Threaded design for secure, tool-assisted installation
• Low-profile form factor minimizes projection inside enclosures
• Lightweight at 0.5 pounds for easy handling during overhead or panel work

Compatibility

Designed as an OEM-style reducing bushing for use with 1-1/2 inch to 1 inch threaded conduit fittings, enclosure knockouts, and conduit bodies in standard electrical raceway systems.

Installation Notes

Installation is performed by a licensed electrician. De-energize all circuits and verify absence of voltage before working inside any enclosure or panelboard. The bushing is threaded into the larger opening by hand and tightened with an appropriate fitting wrench or pliers to ensure a secure, metal-to-metal connection. Follow applicable NEC requirements for conduit fill, grounding continuity, and fitting tightness.

Technical Specifications

• Trade Size: 1-1/2 x 1 inch
• Package Dimensions (L x W x H): 6 inches x 5 inches x 0.3 inches
• Weight: 0.5 pounds
• UPC: 78312678540

Standard Information

• Brand: APPLETON
• Manufacturer Part Number: 328-R