Eaton Crouse-Hinds 4" Rigid/IMC Insulating Bushing, Plastic, Threaded

Eaton Crouse-Hinds 4" Rigid/IMC Insulating Bushing, Plastic, Threaded

Professional-Grade Wire Protection for Large Conduit Systems

The Eaton Crouse-Hinds 4" Rigid/IMC Insulating Bushing is a professional-grade electrical fitting engineered for large-scale commercial and industrial conduit installations. This high-temperature plastic bushing delivers superior wire protection and insulation for 4" rigid and IMC conduit systems, ensuring safe conductor transitions in demanding electrical environments.

Key Features & Benefits

Superior Wire Protection

• Insulated throat design - Prevents wire damage during installation and provides long-term conductor protection
• Smooth interior surface - Eliminates sharp edges that could nick or damage wire insulation
• Precision molded construction - Ensures consistent dimensions and reliable fit every time
• Large 4" trade size - Accommodates high-capacity conductor bundles in major electrical distribution systems

High-Temperature Performance

• 105°C temperature rating - Handles elevated temperatures in industrial environments and high-load applications
• Engineered plastic construction - Provides excellent thermal stability and dimensional integrity under temperature cycling
• Chemical resistance - Withstands exposure to common industrial chemicals and cleaning agents

Professional Installation Features

• Threaded design - Ensures secure mechanical connection to conduit systems
• NEC/CEC compliant - Meets all applicable electrical code requirements for insulating bushings
• Rigid/IMC compatibility - Works with both rigid steel and intermediate metal conduit systems

Technical Specifications

This 4" trade size insulating bushing features threaded construction for secure attachment to rigid and IMC conduit systems. The high-performance plastic material provides 105°C temperature rating for demanding applications, while the insulated throat design ensures complete wire protection. Compact dimensions of 4.14" width × 5.31" length × 1.4" height and lightweight 0.11 lb construction facilitate easy installation in tight spaces. NEC/CEC compliance ensures code-approved installations in ordinary/non-hazardous locations.

Installation Process

1. Verify conduit end is properly reamed and deburred to prevent wire damage
2. Thread the insulating bushing onto the conduit end, ensuring full engagement
3. Tighten securely using appropriate tools, avoiding over-torquing that could damage threads
4. Verify the bushing is properly seated and the insulated throat is positioned correctly
5. Pull conductors through the protected opening, taking advantage of the smooth interior surface
6. Complete electrical connections according to applicable codes and manufacturer specifications

Applications

Perfect for:

• Large Commercial Buildings - Main electrical distribution panels, switchgear connections, and high-capacity feeder circuits
• Industrial Facilities - Manufacturing equipment connections, motor control centers, and process control systems
• Municipal Infrastructure - Schools, hospitals, government buildings, and public facility electrical systems
• Data Centers - Power distribution units, UPS systems, and critical infrastructure electrical connections
• Healthcare Facilities - Hospital electrical systems, medical equipment connections, and emergency power distribution
• Educational Institutions - University campuses, research facilities, and large school electrical distribution systems
• Retail Centers - Shopping malls, big box stores, and commercial retail electrical infrastructure
• Office Complexes - High-rise buildings, corporate campuses, and commercial office electrical systems

Insulating Bushing System Benefits

Insulating bushings are essential components in professional electrical installations, providing critical wire protection at conduit termination points. Unlike simple conduit ends, insulating bushings eliminate sharp edges that can damage conductor insulation during installation or through thermal expansion cycles. The insulated throat design provides an additional safety barrier, preventing accidental contact between conductors and the conduit system while maintaining proper grounding continuity.

Why Choose High-Temperature Plastic Construction?

The 105°C temperature rating of this plastic insulating bushing makes it ideal for high-load electrical systems where elevated temperatures are common. Unlike standard bushings, this high-temperature design maintains dimensional stability and protective properties even in demanding industrial environments. The lightweight plastic construction also reduces installation fatigue while providing excellent chemical resistance and long-term durability that electrical contractors have trusted for decades.