Ocal HUB3-G PVC-Coated Zinc Kn...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$243.75
Ocal HUB3-G PVC-Coated Zinc Knockout Hub, 3-Inch Trade Size

Ocal HUB3-G PVC-Coated Zinc Knockout Hub, 3-Inch Trade Size

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Model: HUB2-G

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

$243.75
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Thomas & Betts HUB3-G Ocal® PVC-Coated Zinc Knockout Hub, 3-Inch Trade Size

The Thomas & Betts HUB3-G is a 3-Inch Ocal® PVC-Coated Zinc Knockout Hub engineered to provide a secure, corrosion-resistant conduit connection point for electrical enclosures, panels, and equipment housings. Built on a durable zinc base and finished with a factory-applied PVC coating, this knockout hub is designed for installations exposed to moisture, chemicals, and harsh industrial atmospheres where uncoated fittings would quickly corrode. The 3-Inch trade size allows direct installation into standard enclosure knockouts, giving electricians and maintenance crews a dependable, long-lasting entry point for conduit runs into panelboards, motor control centers, and outdoor equipment housings. The Ocal® PVC-coating system is widely specified for wastewater, chemical processing, and coastal facilities where standard fittings fail prematurely.

Key Features

  • Trade Size: 3-Inch knockout hub sized for direct installation into standard 3-Inch enclosure and panel knockouts.
  • Durable Construction: Zinc base construction provides structural strength for secure conduit termination into enclosures.
  • Ocal® PVC Coating: Factory-applied PVC coating adds a protective barrier against moisture, chemical exposure, and corrosive atmospheres.
  • Corrosion Resistance: PVC-coated zinc construction is engineered to outperform uncoated steel and standard zinc fittings in wet, coastal, and industrial locations.
  • Knockout Hub Design: Simplifies conduit entry into equipment enclosures, panelboards, and junction boxes while maintaining a secure connection.
  • Long-Term Performance: Corrosion-resistant coating helps extend service life and reduce maintenance in harsh operating conditions.
  • Versatile Installation: Suited to indoor and outdoor equipment enclosures requiring a corrosion-resistant conduit entry point.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • Wastewater Treatment and Chemical Processing Facilities
  • Coastal, Marine, and High-Humidity Electrical Installations
  • Industrial Equipment Enclosures and Panelboards
  • Outdoor and Wet-Location Conduit Entries
  • Corrosive Environment Conduit Systems
  • Commercial and Industrial Renovation Projects

Why Thomas & Betts?

Thomas & Betts is a recognized manufacturer of professional-grade electrical fittings, and the Ocal® product line is purpose-built for corrosion-resistant conduit protection in the toughest environments. The HUB3-G pairs a zinc base with a durable PVC coating to deliver a knockout hub that stands up to moisture, chemicals, and industrial wear far better than uncoated alternatives. Choose the Thomas & Betts HUB3-G Ocal® Knockout Hub for dependable, code-compliant conduit connections built to last in wet and corrosive locations.

Manufacturer Resources

Product Specs

Product Finish:
PVC-Coated
Product Material:
PVC-Coated Zinc
Product Type:
Conduit Hub
Product Subgroup:
Conduit Fittings
Department:
Electrical
list_batch:
TB-20260918
Product Group:
Conduit & Raceway
Product Color:
Dark Gray
Application:
To Positively Bond Conduit to Box or Enclosure

Ocal HUB2-G – Frequently Asked Questions

1) What trade sizes does the Ocal HUB-G PVC-coated knockout hub come in?
Two trade sizes: 2 inch (HUB2-G) and 3 inch (HUB3-G). Each is sized to drop straight into a standard enclosure knockout of the matching trade size, so order by the knockout you are landing in, not by the conduit OD.
2) Will a PVC-coated knockout hub hold up in a wastewater or coastal plant where plain zinc fittings keep corroding?
That is the application it is built for. The Ocal HUB-G is zinc with a factory-applied PVC coating, and the description calls out wastewater treatment, chemical processing, coastal and marine, and high-humidity installs as typical uses. Uncoated steel and standard zinc fittings are what it is intended to outperform in those atmospheres.
3) Does the Ocal HUB-G hub bond the conduit to the enclosure, or do I still need a bonding bushing?
The hub's stated application is to positively bond conduit to the box or enclosure, so the connection itself is a bonding termination. Where your installation calls for a supplemental bonding jumper or grounding bushing under the project spec or inspector's call, that is still a separate item.
4) Can I use this hub on outdoor and wet-location enclosures, not just indoor panels?
Yes. The HUB-G is specified for indoor and outdoor equipment enclosures, including wet-location conduit entries, panelboards, motor control centers, and outdoor equipment housings. The PVC coating over zinc is what carries it outdoors.
5) I need the 3-inch Ocal hub - what is the exact part number to order?
HUB3-G is the 3 inch Ocal PVC-coated zinc knockout hub from Thomas and Betts. The 2 inch in the same family is HUB2-G. Both carry the -G suffix for the Ocal coated version.
6) What color is the Ocal PVC-coated knockout hub, and will it match the rest of an Ocal conduit system?
Dark gray, which is the standard Ocal PVC coating color, so it reads the same as other PVC-coated Ocal fittings and coated rigid conduit on the same run. Useful if you are patching into an existing coated system and want the finish consistent.
How fast can I get the Ocal HUB2-G 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 Ocal HUB2-G come with a warranty?
Absolutely. The Ocal HUB2-G 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 Ocal HUB2-G?
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
Why buy the Ocal HUB2-G from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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