L H Dottie Co 1216D Nylon Knockout Bushing 2.5 in 25pk

Product Description

The L H Dottie CO 1216D is a nylon knockout bushing designed to protect wire and cable insulation at conduit knockout openings in electrical enclosures, panels, and junction boxes. The bushing snaps into a standard 2.5-inch knockout to provide a smooth, non-conductive edge that prevents abrasion damage to conductors during pull-through and after installation. Each pack contains 25 pieces, making it practical for panel builds and rough-in work where multiple knockouts require protection. Nylon construction resists corrosion and does not conduct electricity, which suits both indoor and controlled outdoor enclosure applications.

This bushing is used by licensed electricians and panel installers working on residential and light commercial wiring projects. It fits into 2.5-inch knockout openings on sheet metal enclosures, sub-panels, pull boxes, and wire troughs. The 25-piece pack quantity is well suited for new construction, service upgrades, and prefabrication work where consistent knockout protection is required across multiple openings.

Key Features

• Fits standard 2.5-inch knockout openings in electrical enclosures and panels
• Nylon construction provides a non-conductive, smooth wire-bearing surface
• Protects conductor insulation from sharp sheet metal edges at knockout entry points
• Snap-in installation requires no tools
• Pack of 25 pieces reduces trip counts on multi-knockout panel work

Compatibility

Designed as an OEM-style replacement and standard-fit bushing for 2.5-inch knockout openings in residential and commercial electrical enclosures, junction boxes, and panel boards.

Installation Notes

Knockout bushings are installed by licensed electricians in accordance with NEC requirements for conductor protection at enclosure entry points. De-energize the panel or enclosure completely before working inside any electrical box. The bushing snaps into the knockout opening by hand and should seat flush against the enclosure wall before conductors are pulled through. Inspect the bushing for cracks or deformation before use to ensure the wire-bearing edge is fully intact.