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The SOUTHWIRE CBGI250 is an insulated grounding bushing designed for use with rigid metal conduit and intermediate metal conduit installations. This fitting provides a code-compliant grounding connection point while protecting conductors from abrasion at conduit terminations. The insulated throat prevents damage to wire insulation where conductors enter enclosures, panels, and junction boxes. Licensed electricians install this bushing during service entrance work, feeder runs, and branch circuit terminations wherever grounding continuity and conductor protection are both required at the same fitting location.
The CBGI250 is sized for 2.5-inch conduit and is suited for commercial and residential electrical installations. It is referenced under equivalent part numbers including Madison Electric CBGI-250 and Topaz 337, making it a recognized cross-reference replacement in the trade. Typical applications include service entrance conduit terminations at meter bases, load centers, and pullboxes where a grounded, insulated fitting is specified.
Designed as an OEM-style replacement insulated grounding bushing for 2.5-inch rigid metal conduit and intermediate metal conduit systems. Referenced as a direct replacement for Madison Electric CBGI-250 and Topaz 337.
Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC). De-energize all circuits and verify absence of voltage before working on any conduit termination. Thread the bushing securely onto the conduit end before pulling conductors, and connect the grounding conductor to the bushing lug as required by the applicable code section. Do not overtighten in a way that cracks the insulated collar.
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