Insulated Split Bushing, 4" Plastic for Conductor Protection – Nonmetallic Split Bushing

The Bridgeport SB-390NM 4-Inch Mighty-Rite® Insulated Split Bushing is designed for use in electrical conduit systems where wires have already been pulled through rigid or IMC conduits, or EMT fittings, and an insulated bushing is required to protect conductor insulation. This product is suitable for terminating rigid and IMC conduits or rigid and EMT connectors to a box or enclosure. It is heat rated to 105°C and cULus listed, meeting recognized electrical safety standards. The patented split design enables installation after conductors are in place, minimizing facility downtime during upgrades or maintenance. This solution is ideal for electrical distributors and switchgear suppliers seeking reliable conduit protection components.

Specifications

• Material: Nylon Plastic
• Color: Gray
• Trade Size: 4 inches
• Dimensions A (Diameter): 2.66 in
• Dimensions B (Depth): 0.7 in
• Dimensions C (Width): 3.9 in
• Dimensions D (Length): 4.91 in
• Product Weight: 0.1012 lbs
• UL File Number: E9391
• UL Standard: UL-514B
• Federal Specification Number: A-A-50553
• NEMA Standard: FB-1
• Patent Numbers: 9,012,791; 9,000,310; D721,652
• Country of Origin: China

Features

• Patented split design allows installation after conductors have been pulled, reducing downtime
• Insulated bushing protects wire insulation from abrasion and damage
• Compatible with rigid, IMC, and EMT conduits and fittings
• Heat rated to 105¬∞C for high-temperature applications
• cULus listed and meets OSHA-recognized electrical standards
• Solid construction for durability in electrical conduit systems

Downloads & Links

• Spec Sheet
• Spec Sheet