Insulated Grounding Bushing, 4", Malleable Iron with Lug

Insulated Grounding Bushing, 4", Malleable Iron with Lug - Threadless Grounding Bushing The Bridgeport TL-390 insulated grounding bushing is designed for use on threadless rigid and IMC conduit where an insulated grounding bushing is required. It provides secure termination of conduit to a cabinet while protecting wire insulation with a plastic metaliner. This component is suitable for electrical distributors and switchgear suppliers needing reliable grounding solutions rated for high temperature applications up to 150°C. The bushing is cULus listed and meets recognized industry safety standards. Specifications Material: Malleable Iron Finish: Zinc Plated Grounding Lug: Tin Electro-plated Aluminum Alloy Trade Size: 4 inches Overall Length (Dimension A): 5.0625 in Width (Dimension B): 1.125 in Temperature Rating: 150°C Certifications: cULus Listed, UL File No. E20412, Federal Specification A-A-50553, NEMA FB-1, UL-514B Country of Origin: China Manufacturer Part Number: TL-390 Standard Package Quantity: 20 Features Plastic metaliner prevents damage to wire insulation Tin-plated aluminum lug enables bonding jumper connection to neutral busbar Threadless design for terminating rigid or IMC conduit to cabinets Corrosion-resistant zinc plating for durability Patent-protected design ensuring compliance with OSHA-recognized and NRTL-listed electrical standards Downloads & Links Spec Sheet Spec Sheet