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The APPLETON IBC-300L-4BC is a 3-inch insulated grounding bushing designed for use in electrical conduit installations. This fitting provides a grounded, insulated throat to protect wire insulation from abrasion at conduit terminations while simultaneously establishing a grounding path. It is used in conduit systems where the National Electrical Code (NEC) requires an insulated bushing at conduit ends entering enclosures, panels, or junction boxes. Licensed electricians and electrical contractors install this bushing as part of standard conduit termination work in both commercial and industrial applications.
The IBC-300L-4BC is suited for 3-inch conduit terminations in commercial and industrial electrical systems. It is typically installed at the entry points of panelboards, pull boxes, and enclosures where conduit terminates and a grounding lug connection is required. Its design addresses NEC requirements for protecting conductors at conduit ends and maintaining a continuous grounding path through the conduit system.
Designed as an OEM-style replacement and standard-fit insulated grounding bushing for 3-inch conduit terminations in commercial and industrial electrical installations.
Installation should be performed by a licensed electrician in accordance with applicable NEC requirements. De-energize and lock out the panel or enclosure before beginning conduit termination work. Thread the bushing onto the conduit end until fully seated before making the grounding lug connection. Do not use this fitting as the sole means of equipment grounding where a separate grounding conductor is required by code.
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