Thomas & Betts Aluminum Ground...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$48.60
Thomas & Betts Aluminum Grounding Hub with Locknut

Thomas & Betts Aluminum Grounding Hub with Locknut

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Model: H075GRA-TB

In Stock (leaves warehouse same day if ordered before 3pm ET)

$48.60
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Thomas & Betts 3/4 Inch Aluminum Grounding Hub with Locknut

Professional Conduit Connection & Grounding Solution

The Thomas & Betts 3/4 inch aluminum grounding hub provides reliable conduit connection and electrical grounding in a durable aluminum construction. This professional-grade hub features integrated grounding capabilities with locknut for secure installation in electrical enclosures and junction boxes.

Professional Features & Benefits

  • 3/4 Inch Size: Standard trade size accommodates common conduit applications for versatile installation flexibility
  • Aluminum Construction: Lightweight yet durable material provides excellent corrosion resistance and long-term reliability
  • Grounding Hub Design: Integrated grounding capability ensures proper electrical continuity and safety compliance
  • Locknut Included: Secure mounting hardware provides tight connection and prevents loosening over time
  • Professional Grade: Thomas & Betts quality construction meets demanding electrical installation requirements
  • Conduit Hub Application: Purpose-built for reliable conduit-to-enclosure connections in commercial and industrial settings

Technical Specifications

  • Department: Electrical
  • Material: Aluminum
  • Number Of Batteries: 0
  • Product Group: Conduit & Fittings
  • Product Subgroup: Conduit Hubs
  • Product Type: Grounding Hub

Professional Applications

  • Commercial Electrical Installations
  • Industrial Control Panels
  • Junction Box Connections
  • Electrical Enclosure Mounting
  • Conduit System Integration
  • Maintenance and Retrofit Projects

Why Choose Thomas & Betts Quality?

Thomas & Betts delivers proven reliability in electrical connection solutions with aluminum construction that provides lasting durability and corrosion resistance. Professional contractors trust Thomas & Betts quality for critical conduit and grounding applications where secure connections and electrical safety are essential.

Manufacturer Resources

Product Specs

Number Of Batteries:
0
Product Group:
Grounding & Bonding
Department:
Electrical
Product Subgroup:
Grounding & Bonding
Product Material:
Aluminum
Product Type:
Grounding Hub

Thomas & Betts H075GRA-TB – Frequently Asked Questions

1) What trade sizes does the Thomas & Betts aluminum grounding hub come in?
Two trade sizes: 3/4 inch (H075GRA-TB) and 1 inch (H100GRA-TB). Both are threaded hubs for rigid or IMC conduit into an enclosure wall, and both ship with the locknut.
2) Do I still need a separate grounding bushing if I use this hub?
No. The Thomas & Betts hub is a grounding hub, so the bonding means is built into the fitting itself and carries continuity from the conduit through to the enclosure. That is the difference between it and a plain conduit hub, which needs a separate grounding bushing or bonding jumper.
3) Will a 3/4 inch grounding hub fit the knockout already in my junction box?
Yes, if that knockout is a standard 3/4 inch trade size opening. The 3/4 inch hub (H075GRA-TB) threads through the knockout and is secured from inside with the supplied locknut, so no new drilling is needed on an existing box. If the knockout is 1 inch, order the H100GRA-TB instead rather than reducing it.
4) Is there a raintight grounding hub alternative to the Thomas & Betts aluminum grounding hub for outdoor enclosures?
For wet-location work, the Bridgeport Fittings Mighty-Bond raintight grounding hub is a stainless steel hub specified as raintight. The Thomas & Betts hub is an aluminum grounding hub supplied with a locknut for enclosure and junction box connections; if your spec calls out a raintight hub at the entry, the Bridgeport raintight part is the one written for that condition.
5) What grounding hub can I use for 1-1/2 inch conduit instead of the Thomas & Betts H075GRA-TB or H100GRA-TB?
The Thomas & Betts aluminum grounding hub covers 3/4 inch and 1 inch trade sizes, so a larger opening needs a different part. The Bridgeport Fittings MCH-200 Mighty-Bond grounding hub is a stainless steel hub in 1-1/2 inch, which handles the larger conduit run while still providing a threaded grounding hub connection into the enclosure.
6) Is an aluminum grounding hub OK outdoors or in a corrosive area, or should I use stainless or bronze?
Aluminum handles general commercial and industrial exposure and resists corrosion, and it is the lighter choice on a large panel full of hubs. Where you are in a washdown, coastal, or chemically aggressive location, or the spec calls out a different metal, ZenSupply also carries stainless steel grounding hubs in the Bridgeport Fittings Mighty-Bond line and a bronze threaded hub, the NSi G42 in the G4 Series. One caution with aluminum: avoid pairing it directly with dissimilar metals in wet locations.
7) If my spec requires a stainless steel grounding hub, can I substitute the Thomas & Betts H100GRA-TB?
No. The Thomas & Betts H100GRA-TB is an aluminum grounding hub, so it will not satisfy a stainless callout. Bridgeport Fittings offers stainless steel grounding hubs in the Mighty-Bond line, including the MCH-200 in 1-1/2 inch and a raintight stainless version, which is where to look when the drawing specifies stainless.
8) What comes in the box with the Thomas & Betts grounding hub?
The hub and its locknut. You supply the grounding conductor and the lug screw torque per the panel spec; nothing else is included, so if you are landing an equipment grounding conductor you will want that wire and any bonding hardware on the same order.
How fast can I get the Thomas & Betts H075GRA-TB delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Thomas & Betts H075GRA-TB come with a warranty?
Absolutely. The Thomas & Betts H075GRA-TB is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Thomas & Betts H075GRA-TB?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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