Industrial NSB-2-1/2IN Threaded Insulated Bushing

Description:

The NSB 2-1/2 Inch Threaded Insulated Bushing is used in electrical conduit systems to protect conductors from abrasion where rigid metal conduit or intermediate metal conduit enters electrical enclosures. Commonly installed in commercial buildings, industrial facilities, switchgear assemblies, motor control centers, and power distribution systems requiring conductor protection and secure conduit termination. Electricians and maintenance personnel use this bushing for new installations, retrofit projects, and electrical system maintenance to ensure safe wire routing and compliance with electrical codes.

Applications:

The NSB 2-1/2 Inch Threaded Insulated Bushing is commonly used in electrical panels, junction boxes, switchboards, motor control centers, industrial automation systems, and commercial electrical installations where conductors pass through threaded conduit entries and require protection from sharp metal edges. The bushing is often used in conjunction with locknuts and knockout sealing components to provide a complete conduit termination assembly.

Technical Specifications:

• Manufacturer: NSB
• Product Type: Threaded Insulated Bushing
• Conduit Size: 2-1/2 in.
• Bushing Type: Insulated Threaded Bushing
• Thread Type: NPT Conduit Thread
• Material: Malleable Iron Body
• Insulator Material: Molded Thermoplastic
• Function: Conductor Protection and Conduit Termination
• Conduit Compatibility: Rigid Metal Conduit (RMC) and IMC
• Installation Type: Threaded Conduit Mounting
• Application: Electrical Raceway Systems
• Corrosion Resistance: Zinc-Plated Finish
• Suitable Environment: Commercial and Industrial Installations
• Standards Compliance: UL Listed and NEC Compliant

Common Replacements:

• Bridgeport 1262-I 2-1/2 in. Insulated Threaded Bushing
• Eaton Crouse-Hinds B250I 2-1/2 in. Insulated Grounding Bushing
• Appleton IB-250 2-1/2 in. Threaded Insulated Bushing