Appleton IBC-300L-20AC Insulated Grounding Bushing 3 in

Product Description

The APPLETON IBC-300L-20AC is a 3-inch insulated grounding bushing designed to provide a grounded, insulated throat at the end of rigid metal conduit terminations. This fitting protects conductors from abrasion at conduit entry points and ensures a reliable equipment grounding path. It is installed by licensed electricians in commercial, industrial, and institutional electrical distribution systems. The bushing threads onto standard rigid conduit and locknuts, making it a standard component in panel terminations, junction boxes, and enclosure entries where NEC requirements call for insulated fittings on conductors 4 AWG and larger.

The IBC-300L-20AC is suited for use in commercial and industrial electrical installations where rigid metal conduit terminates at enclosures, panelboards, or pull boxes. Its 3-inch trade size makes it appropriate for large feeder and service-entrance conduit runs. Electricians specify this bushing when NEC Article 300 and related sections require both an insulated throat and a grounding lug at conduit terminations.

Key Features

• 3-inch trade size fits standard rigid metal conduit of the same trade size
• Insulated throat protects large-gauge conductors from abrasion at conduit entry
• Integrated grounding provision supports NEC-compliant equipment grounding continuity
• Compact profile at 0.820 inches height allows installation in tight enclosure knockouts
• Lightweight at 0.59 pounds, reducing handling burden on overhead or panel work

Compatibility

Designed as an OEM-style fitting for use with 3-inch rigid metal conduit terminations in standard commercial and industrial electrical enclosure applications.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the NEC and applicable local codes. De-energize the circuit and lock out the panel or service equipment before beginning conduit termination work. Thread the bushing fully onto the conduit end before pulling conductors to avoid nicking insulation. Verify that the grounding lug is properly bonded to the equipment grounding conductor as required by the applicable NEC article.

Technical Specifications

• Trade Size: 3 inches
• Length: 7.300 inches
• Width: 6.100 inches
• Height: 0.820 inches
• Weight: 0.59 pounds
• UPC: 78312630331

Standard Information

• Brand: APPLETON
• Manufacturer Part Number: IBC-300L-20AC