Southwire MCBGI-300 Malleable Insulated Grounding Bushing

Product Description

The SOUTHWIRE MCBGI-300 is a malleable insulated grounding bushing used to bond and ground metal conduit systems in electrical installations. The insulated design protects conductors from sharp conduit edges at termination points, while the malleable iron construction provides reliable mechanical strength in both exposed and concealed applications. This type of grounding bushing is a standard component in commercial and residential electrical rough-in work, installed by licensed electricians to maintain grounding continuity at panel knockouts, junction boxes, and enclosure entries.

The MCBGI-300 is suited for use in conduit grounding applications where a secure, insulated bushing is required at the end of metal conduit runs. It is typically installed at service entrances, subpanels, and junction enclosures where NEC grounding and bonding requirements must be met. The malleable iron body stands up to the physical demands of field installation, including tightening in tight enclosure spaces.

Key Features

• Malleable iron construction for mechanical durability in conduit termination applications
• Insulated throat protects wire insulation from conduit edge damage
• Designed for grounding and bonding continuity in metal conduit systems
• One Year Limited Warranty

Compatibility

Designed as an OEM-style replacement grounding bushing for use with metal conduit systems in standard electrical installations.

Installation Notes

Installation is performed by a licensed electrician in accordance with applicable NEC requirements for grounding and bonding. Power must be shut off and the circuit de-energized before installing or replacing grounding bushings at any enclosure or panel. Thread the bushing onto the conduit end and tighten securely before pulling conductors. Inspect the insulated throat for damage before installation to ensure conductor protection is intact.

Technical Specifications

• Material: Malleable Iron with Insulated Throat
• Length: 8.9 inches
• Height: 5.9 inches
• Width: 8.8 inches
• Weight: 6.45 pounds
• Warranty: One Year Limited
• Country of Origin: India

Standard Information

• Brand: SOUTHWIRE
• Manufacturer Part Number: MCBGI-300