Industrial NSB GIB500SL25 Bushings Knockout Seals Locknuts

Appleton GIB500SL25 is a set-screw insulated grounding bushing that terminates conduit to an electrical enclosure while providing a reliable grounding path. It is designed to be installed with a locknut to secure the bushing to a box or panel, and the built-in grounding lug enables bonding jumpers to connect to a neutral bus bar. This member of Appleton’s grounding bushing family is intended for use with rigid metal conduit and IMC, with the GIB-LS and IBC-LS variants designed for threadless conduit and the GIB-L and IBC-L variants for threaded conduit. The bushings are UL Listed and CSA Certified for use in Ordinary (Unclassified) Locations, reflecting approval for typical building environments. Model GIB500SL25 carries the manufacturer part number GIB500SL25; distributor listings note this specific model as discontinued, indicating it may be out of production. In practice, these bushings help terminate conduit to an enclosure and establish a grounded connection to the enclosure when paired with the appropriate locknut and conduit type.