Eaton HGLL 9 Grounding Bushing - 150°C, Rigid/IMC
Part Number: HGLL 9
Quick Summary
Eaton HGLL 9 grounding bushing provides a reliable grounding connection for rigid/IMC conduit systems in electrical panels and industrial enclosures. Engineers often wrestle with loose fittings that cause heat buildup, corrosion, and downtime, complicating maintenance. This bushing delivers NEC/CEC compliance, UL certification for Rigid-IMC use, and a 150°C rating, backed by a robust malleable iron body and aluminum lug for durability. Designed for ordinary/non-hazardous locations, it integrates seamlessly with 3-1/2" trade size conduits and #3/0-6 AWG aluminum conductors, offering a dependable, cost-effective grounding solution for industrial facilities.
Product Information
Extended Description
HGLL 9 Eaton Crouse-Hinds: Eaton Crouse-Hinds series HGLL grounding bushing, Rigid/IMC, Aluminum lug, #3/0-6 AWG, Malleable iron, 150°C, Threaded, 3-1/2"
Product Name
Eaton Crouse-Hinds series HGLL grounding bushing
Catalog Number
HGLL 9
UPC
784564113207
Product Length/Depth
4.38 in
Product Height
1.06 in
Product Width
4.38 in
Product Weight
1.01 lb
Area classification
Ordinary/Non-Hazardous Locations
Standards type
NEC/CEC
Conduit type
Rigid/IMC
Temperature rating
150°C
Lug material
Aluminum
Thread
Threaded
Trade size
3-1/2"
Lug size
#3/0-6 AWG
Material
Malleable iron
Crouse-Hinds series Grounding Bushings - Rigid-IMC catalog page
Grounding Bushings - Rigid-IMC UL certification
Grounding Bushings - Rigid-IMC UL certification
Eaton Specification Sheet - HGLL 9
Feature: Threaded design provides secure mounting in rigid/IMC conduits. Business Impact: Reduces installation time and torque loss, improving reliability in panel builds. Application: Suitable for electrical panels and switchgear where space is constrained. Feature: Aluminum lug paired with a malleable iron body delivers a robust yet lighter grounding assembly. Business Impact: Lower weight with high strength improves handling during install and service life in rugged environments. Application: Main feeders and enclosure terminations where weight reduction is beneficial. Feature: 150°C temperature rating ensures continued conductivity in hot equipment zones. Business Impact: Maintains grounding integrity under elevated ambient temperatures, reducing failure risk. Application: Control cabinets near heat-generating equipment. Feature: 3-1/2" trade size and #3/0-6 AWG lug capacity enable broad conductor compatibility. Business Impact: Supports common industrial conductors, simplifying part selection and inventory. Application: General purpose grounding in mid-size industrial installations. Feature: NEC/CEC compliance and UL certification provide regulatory assurance. Business Impact: Streamlined compliance workflows and reduced QA concerns. Application: Facilities requiring standard compliance plus intermarket in Canada and the US.
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FAQs
HGLL 9 uses a threaded connection designed for rigid/IMC conduits, simplifying secure mounting in panels and enclosures. Ensure the conduit is clean and threads are greased to prevent galling, torque to the specified value, and verify the aluminum lug is properly seated for a low-resistance ground. The compact 3-1/2" trade size fits in tight spaces, reducing install time while maintaining reliability.
HGLL 9 supports #3/0-6 AWG aluminum conductors with an aluminum lug, balancing conductivity with weight. The malleable iron body provides mechanical strength, while the threaded interface ensures a secure, vibration-resistant connection. This combination is particularly beneficial in switchgear and control panels where conductor flexibility and robust grounding are required.
Yes. The HGLL 9 is rated to 150°C, enabling stable grounding performance in locations with elevated heat. Its malleable iron body and corrosion-resistant aluminum lug are designed to withstand rugged industrial conditions, reducing risk of grounding failure due to thermal expansion and environmental exposure commonly found in manufacturing floors and process areas.
HGLL 9 is NEC/CEC compliant and UL-listed for Rigid-IMC installations, providing essential regulatory alignment for US and Canadian facilities. In addition, it is approved for ordinary/non-hazardous locations, aligning with typical plant environments and simplifying procurement and QA reviews for compliant grounding assemblies.
The HGLL 9 delivers predictable, low-maintenance grounding connections thanks to a robust threaded design and corrosion-resistant lug. Its high-temperature rating reduces the likelihood of insulation damage near heat sources, decreasing downtime and extending service intervals. Lightweight aluminum lugs also ease handling during installation, offering tangible labor savings.