Eaton Crouse-Hinds XJG78 HDG Expansion Coupling - IMC
Part Number: XJG78 HDG
Quick Summary
Eaton Crouse-Hinds XJG78 HDG expansion coupling is designed to accommodate movement in rigid and IMC conduit runs. Professionals often battle misalignment, corrosion, and costly reworks when routing long spans, especially in harsh environments. This XJG HDG product meets NEC/CEC standards and UL certifications for Rigid/IMC and EMT, with ordinary-location suitability. By leveraging a hot-dip galvanized finish and a 2-1/2 inch trade size, it minimizes maintenance costs while accelerating installation. Its 14 inch length and 8 inch conduit movement capability ensure flexibility in challenging layouts. The 14.4 lb weight supports sturdy installations with fewer clamps and fewer field adjustments.
Product Information
Extended Description
XJG78 HDG Eaton Crouse-Hinds: Eaton Crouse-Hinds series XJG expansion coupling, Rigid/IMC, Steel, Hot dip galvanized finish, 8" maximum conduit movement, 2-1/2" trade size
Product Name
Eaton Crouse-Hinds series XJG expansion coupling
Catalog Number
XJG78 HDG
UPC
662276271548
Product Length/Depth
14 in
Product Height
4.87 in
Product Width
4.87 in
Product Weight
14.4 lb
Area classification
Ordinary/Non-Hazardous Locations
Standards type
NEC/CEC
Type
Expansion
Conduit type
Rigid/IMC
Trade size
2-1/2"
Conduit movement - max
8"
Material
Steel
Finish
Hot dip galvanized
Crouse-Hinds series Conduit Expansion/Deflection Couplings brochure
Crouse-Hinds series Conduit Expansion/Deflection Couplings brochure
Crouse-Hinds series XJG Conduit Expansion Couplings for Rigid/IMC catalog page
XJG Conduit Expansion Couplings for EMT and Rigid/IMC UL certification
XJG Conduit Expansion Couplings for EMT and Rigid/IMC UL certification
IF 343 - Type XJ Expansion Joints
IF 343 - Type XJ Expansion Joints
Expansion and Deflection Couplings
Expansion and Deflection Couplings
Feature: Robust steel construction with a hot-dip galvanized finish provides durable corrosion resistance for long service life in harsh industrial environments. Business impact: This translates to significantly reduced maintenance costs by resisting moisture, chlorides, and abrasion across outdoor enclosures. Application: Suitable for outdoor facilities, damp plant spaces, and coastal installations where elemental exposure is constant. Feature: The 14 inch length, 4.87 inch height, and 4.87 inch width offer a compact yet robust footprint that fits tight spaces without compromising strength. Business impact: Enables easier retrofits and faster installation in crowded electrical rooms and along equipment lines. Application: Particularly valuable in retrofit projects and new builds with space constraints. Feature: 8 inch maximum conduit movement and 2-1/2 inch trade size enable flexible routing around equipment and framing. Business impact: Reduces the number of intermediate fittings, trims inventory, and speeds assembly, improving project timelines. Application: Ideal for installations requiring movement tolerance in vibration-heavy environments such as packaging, mining, and water/wastewater facilities. Feature: Compatibility with Rigid/IMC conduit types ensures broad installation options across legacy and modern systems. Business impact: Streamlines procurement and minimizes compatibility gaps, reducing risk of mismatched parts and delays. Application: Fits both existing installations and new builds spanning multiple conduit standards. Feature: NEC/CEC compliance and UL certifications, plus Ordinary/Non-Hazardous Location ratings, provide regulatory confidence. Business impact: Improves regulatory risk management and assures performance in standard industrial facilities. Application: Preferred in non-hazardous environments in manufacturing, processing, and utilities. Feature: Weight of 14.4 lb delivers a sturdy standalone assembly capable of withstanding handling and installation stresses. Business impact: Reduces sag and misalignment during seismic or vibration events, lowering rework. Application: Suitable for overhead installations and suspended conduit configurations in warehouses and manufacturing floors.
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FAQs
To install, align the coupling to the rigid or IMC conduit, slide the expansion joint into place, and secure with standard fittings per the XJG installation instructions. Refer to IF 343 and IF 1508 instruction sheets for Type XJ joints, and follow NEC/CEC local codes. Confirm finish and movement rating before tightening clamps.
The coupling supports a maximum conduit movement of 8 inches and a 2-1/2 inch trade size. This combination enables flexible routing and deflection without additional joints, reducing labor and on-site complexity while maintaining alignment under vibration and thermal cycling.
Yes. The XJG78 HDG expansion coupling is designed for Ordinary/Non-Hazardous Locations under NEC/CEC. It is UL certified for Rigid/IMC and EMT, making it appropriate for standard industrial facilities such as manufacturing plants, utilities, and process facilities that do not fall under hazardous area classifications.
The XJG78 HDG expansion coupling carries UL certification for EMT and Rigid/IMC conduits and NEC/CEC compliance. It is suited for ordinary-location environments, aligning with typical industrial safety and performance requirements and simplifying inspections and regulatory reporting.
The coupling reduces labor and inventory by minimizing joints and fittings, improves alignment under vibration, and offers superior corrosion resistance due to the hot-dip galvanized finish. These factors translate to faster commissioning, lower lifecycle costs, and better reliability in retrofit and new-build projects.