Appleton GL-500-D Malleable Grounding Locknut 1-1/2 Inch

Product Description

The APPLETON GL-500-D is a malleable iron grounding locknut designed to establish a secure electrical ground connection between conduit and a metal enclosure or box. It threads onto standard conduit fittings and bites into the enclosure wall to create a low-impedance ground path, which is essential for equipment grounding continuity in raceway systems. Licensed electricians install this fitting during conduit termination work in commercial and industrial electrical installations. The 1-1/2 inch trade size fits standard conduit of that size.

This grounding locknut is suited for use in commercial and industrial conduit installations where a reliable ground bond at the enclosure entry point is required. It is commonly installed at junction boxes, panel enclosures, and other metallic enclosures where rigid metal conduit, intermediate metal conduit, or threaded fittings terminate. It is appropriate for indoor applications and standard conduit wiring methods.

Key Features

• Malleable iron construction provides strength and reliable grounding contact
• 1-1/2 inch trade size for standard conduit fittings of that size
• Serrated or toothed bearing surface bites into enclosure wall for low-impedance ground bond
• Threaded design for straightforward installation with standard conduit wrenches

Compatibility

Designed as an OEM-style replacement or standard grounding locknut for use with 1-1/2 inch trade size rigid metal conduit and threaded conduit fittings in metallic enclosure installations.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC). De-energize the circuit and verify zero voltage before working on any conduit or enclosure. Thread the locknut fully onto the conduit or fitting and tighten firmly so the teeth contact the enclosure surface to ensure a solid ground path. Do not substitute this fitting for insulating-type locknuts where a grounding locknut is specified.

Technical Specifications

• Trade Size: 1-1/2 inch
• Material: Malleable Iron
• UPC: 68785516575

Standard Information

• Brand: APPLETON
• Manufacturer Part Number: GL-500-D