Orbit Industries PB-75 Plastic Insulating Bushing 3/4 in

Product Description

The ORBIT INDUSTRIES PB-75 is a threaded plastic insulating bushing designed for use on rigid metal conduit and IMC conduit. It threads onto the end of a conduit to provide a smooth, rounded surface that protects wire insulation from abrasion and damage as conductors are pulled through. Made from high-impact polypropylene, the PB-75 is temperature rated at 105 degrees C and is suitable for standard trade installations where conduit terminations require an insulating barrier. Electricians install this bushing at box knockouts and conduit termination points as part of a compliant wiring method.

The PB-75 fits 3/4 inch trade size threaded conduit and is used in residential, commercial, and light industrial electrical installations. It is typically installed wherever rigid or IMC conduit terminates into a panel, enclosure, or junction box, especially when a separate grounding bushing is not required. The smooth interior bore reduces friction during wire pull-in and helps prevent insulation nicks that could cause ground faults or code violations.

Key Features

• Threaded design screws directly onto 3/4 inch trade size rigid or IMC conduit
• High-impact polypropylene construction resists impact and mechanical stress
• Temperature rated at 105 degrees C for use in warm environments
• Smoothly rounded interior surfaces protect wire insulation during pull-in
• Lightweight and easy to install without special tools

Compatibility

Designed as an OEM-style replacement and standard fitment for 3/4 inch trade size threaded rigid metal conduit and IMC conduit terminations in commercial and residential electrical installations.

Installation Notes

A licensed electrician should install conduit fittings in accordance with NFPA 70 (NEC) requirements for conduit terminations. De-energize all circuits before working on any conduit system or enclosure. The bushing threads hand-tight onto the conduit end and may be snugged with pliers if needed, but avoid over-tightening, which can crack the polypropylene body. Verify that the bushing is fully seated before pulling wire through the conduit.

Technical Specifications

• Trade Size: 3/4 inch
• Material: High-impact polypropylene
• Temperature Rating: 105 degrees C
• Conduit Type Compatibility: Threaded rigid metal conduit, IMC
• UPC: 835243051737

Standard Information

• Brand: ORBIT INDUSTRIES
• Manufacturer Part Number: PB-75