4" Insulated Grounding Bushing, Model 330

The NESCO Model 330 is a 4" insulated grounding bushing built for professional electricians and contractors who demand reliable grounding and insulation protection on demanding job sites. Designed to protect wire insulation at conduit terminations while providing a solid grounding path, this bushing is an essential fitting for industrial panels, service entrances, and commercial electrical installations. Its robust construction ensures long-term performance in high-traffic conduit runs where code compliance and safety are non-negotiable.

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