Thomas Betts BG350-14-20 Conduit Bushing 3-1/2 in

Product Description

The THOMAS BETTS BG350-14-20 is a malleable iron conduit bushing designed for use with rigid and intermediate metal conduit (IMC) systems. At a 3-1/2 inch trade size, this bushing provides a partial insulation barrier at the conduit end, protecting wire insulation from abrasion where conductors enter enclosures, junction boxes, or panelboards. The lug screw connection type ensures a secure, low-resistance ground path when bonding is required. Electricians and electrical contractors install this fitting during rough-in and service work on commercial and industrial installations where code-compliant terminations are required.

This bushing is suited for rigid metal conduit (RMC) and intermediate metal conduit (IMC) terminations at 3-1/2 inch trade size. Typical applications include service entrance work, large feeder runs, motor branch circuits, and switchgear installations where a mechanically strong, grounded conduit termination is needed. The partial insulation feature helps meet NEC requirements for protecting conductors at conduit ends. This fitting is commonly used in both new construction and retrofit electrical projects in commercial, industrial, and heavy residential settings.

Key Features

• 3-1/2 inch trade size for use with RMC and IMC conduit systems
• Malleable iron construction provides durability and mechanical strength in demanding environments
• Partially insulated design protects conductor insulation from abrasion at conduit termination points
• Lug screw connection allows reliable grounding and bonding at the fitting
• Straight connector shape for standard end-of-conduit termination into enclosures and boxes

Compatibility

Designed as an OEM-style replacement and standard fitting for 3-1/2 inch trade size rigid metal conduit (RMC) and intermediate metal conduit (IMC) applications.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize and lock out all circuits before working in any enclosure or panelboard. Thread the bushing fully onto the conduit end before inserting conductors, and tighten the lug screw to secure the grounding connection. Inspect the insulating collar for damage before installation to ensure adequate conductor protection.