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Thomas & Betts 2 Inch Zinc Conduit Hub Connector
Professional Grade Conduit Connection Solution
The Thomas & Betts 2 Inch Zinc Conduit Hub Connector delivers reliable conduit-to-enclosure connections for professional electrical installations. Constructed with durable zinc material, this hub connector provides secure attachment points for 2-inch conduit systems while maintaining proper electrical continuity and mechanical strength in demanding applications.
Professional Features & Benefits
- 2-Inch Size Compatibility: Precisely engineered for standard 2-inch conduit systems, ensuring proper fit and secure connections in commercial and industrial installations.
- Zinc Construction: Durable zinc material provides excellent corrosion resistance and long-term reliability in various environmental conditions.
- Hub Connector Design: Professional hub configuration creates secure mechanical and electrical connections between conduit and electrical enclosures.
- Conduit & Fittings Category: Part of comprehensive conduit system solutions for complete electrical pathway management and protection.
- Electrical Department Grade: Meets professional electrical installation standards for commercial, industrial, and institutional applications.
Technical Specifications
- Department: Electrical
- Material: Zinc
- Number Of Batteries: 0
- Product Group: Conduit & Fittings
- Product Subgroup: Conduit Hubs
- Product Type: Hub Connector
Professional Applications
- Commercial Building Electrical Systems
- Industrial Facility Conduit Installations
- Institutional Electrical Infrastructure
- Manufacturing Plant Electrical Pathways
- Warehouse and Distribution Center Wiring
- Office Building Electrical Systems
- Retail Facility Electrical Installations
Why Choose Thomas & Betts Quality?
Thomas & Betts conduit hub connectors deliver proven reliability through professional-grade zinc construction and precision engineering. This hub connector provides the mechanical strength and electrical continuity required for demanding commercial and industrial conduit system applications, ensuring long-term performance in professional electrical installations.
Manufacturer Resources
Product Specs
- Product Type:
- Conduit Hub
- Product Group:
- Conduit & Raceway
- Department:
- Electrical
- Product Material:
- Zinc
- Number Of Batteries:
- 0
- Product Subgroup:
- Conduit Fittings
Thomas & Betts H100-TB – Frequently Asked Questions
1) What trade sizes does the Thomas & Betts zinc conduit hub come in, and what is the part number for each?
Four trade sizes, each with its own part number: 1 inch is H100-TB, 2 inch is H200-TB, 3 inch is H300-TB, and 4 inch is H400-TB. Order by the conduit trade size you are terminating into the enclosure, since the hub thread is sized to that conduit and the sizes are not interchangeable.
2) What is a good substitute for a Thomas & Betts zinc conduit hub if I cannot get the size I need?
The closest like-for-like is the Crouse-Hinds Myers Scru-Tite basic hub, also zinc die-cast and the same screw-in hub style. If your drawing calls for a spec-grade fitting, the American Fittings AH alloy steel hub ships with a locknut and an insulated throat, which also saves you a separate bushing on the wire-pull side. The Square D B125 bolt-on hub is a different mounting method, bolted rather than threaded, so it is not a drop-in for a threaded knockout.
3) Will a 1 inch hub work on a 1 inch knockout in my panel?
Trade size on a hub refers to the conduit it accepts, and the threaded male boss that passes through the enclosure is sized to the matching knockout for that trade size. So the H100-TB lands in a standard 1 inch knockout and takes 1 inch conduit. Step up through H200-TB, H300-TB and H400-TB for 2, 3 and 4 inch openings.
4) What is the closest equivalent to the Thomas & Betts H100-TB zinc conduit hub from another manufacturer?
The Crouse-Hinds Myers Scru-Tite basic hub is the nearest match in construction and purpose - it is a zinc die-cast conduit hub, the same material family as the Thomas & Betts H-TB hubs, which are zinc. Thomas & Betts covers 1 inch, 2 inch, 3 inch and 4 inch trade sizes under part numbers H100-TB, H200-TB, H300-TB and H400-TB, so match the Scru-Tite to the trade size you are replacing.
5) I need a conduit hub with an insulated throat - is the Thomas & Betts H200-TB the right choice?
The Thomas & Betts H200-TB is a 2 inch zinc conduit hub. If the job calls specifically for an insulated throat, look at the American Fittings AH, which is an alloy steel insulated throat hub supplied with a locknut and rated spec-grade. That is the one to specify where conductor protection at the hub throat is written into the drawing.
6) Which conduit hub should I use on an outdoor enclosure instead of the Thomas & Betts H300-TB?
For wet-location work, the ABB TC Series is a universal raintight conduit hub and the Square D B125 Series is a rainproof bolt-on hub - both are specified for weather-exposed enclosures. The Thomas & Betts H300-TB is a 3 inch zinc hub; confirm the trade size and enclosure prep before swapping to either.
7) What does a conduit hub actually do that a locknut and bushing does not?
A conduit hub like the Thomas & Betts H-series threads into the enclosure wall and gives you one fitting that makes both the mechanical attachment and the metallic bonding path between the conduit run and the box. A plain locknut-and-bushing pair relies on the locknut teeth biting the enclosure for continuity; a hub seats against the enclosure for a cleaner, more repeatable connection at larger trade sizes where 3 inch and 4 inch conduit puts real weight and leverage on the knockout.
8) Is the Thomas & Betts H-series hub made of zinc, and how does that hold up outdoors?
Zinc is the material. Zinc gives corrosion resistance for exposed and damp commercial and industrial locations, which is why it is the common choice for hubs landing on outdoor panels and plant equipment rather than plated steel. If your spec calls for a rated raintight hub specifically, the ABB TC Series universal raintight hub or the Square D B125 Series bolt-on rainproof hub are the ones carrying that designation.
9) Does the Thomas & Betts conduit hub include an insulated throat or a locknut?
The H-series hub is a plain zinc hub body. If you need an insulated throat built in, or the locknut supplied with the fitting, the American Fittings AH hub is the one that lists both. Otherwise plan on a separate insulating bushing where the code requires throat protection on larger conductors.
10) Is the Square D B125 hub a drop-in substitute for a Thomas & Betts H-TB hub?
Not necessarily. The Square D B125 Series is a bolt-on hub, so it mounts to the enclosure differently than a threaded hub installation, and the Thomas & Betts H-TB hubs are zinc conduit hubs in 1, 2, 3 and 4 inch sizes. Check how the existing enclosure opening is prepared before treating the B125 as an interchange.
11) What hub covers multiple trade sizes without stocking one part per size?
The ABB TC Series is an interchangeable universal raintight hub, which is the approach to take if you want to reduce the number of distinct hub part numbers on the truck. The Thomas & Betts zinc hubs are size-specific instead, with a separate part number for each trade size: H100-TB, H200-TB, H300-TB and H400-TB.
How fast can I get the Thomas & Betts H100-TB delivered?
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Can I return it if it doesn’t work for me?
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reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Thomas & Betts H100-TB come with a warranty?
Absolutely. The Thomas & Betts H100-TB is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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