Thomas & Betts 676-TB Erickson...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$31.31
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Thomas & Betts 676-TB Erickson Coupling, 3/4" Rigid Conduit Fitting

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Model: 676-TB

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

$31.31
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Thomas & Betts 676-TB Erickson Coupling, 3/4" Rigid Conduit

The Thomas & Betts 676-TB (THB676-TB) is a 3/4" Erickson-style coupling designed for joining lengths of rigid metal conduit or IMC where the conduit run cannot be rotated during assembly. Unlike a standard threaded coupling, the Erickson coupling uses a three-piece design that allows electricians to connect two fixed conduit sections end-to-end without turning either piece, making it an essential fitting for tight installation conditions, panel connections, and situations where conduit has already been fixed in place. Built by Thomas & Betts, a long-trusted name in electrical raceway products, the 676-TB is sized for 3/4" trade size conduit and is engineered to deliver a secure, code-compliant mechanical and electrical connection at the coupling point.

Key Features

  • Trade Size: 3/4" sizing for compatibility with 3/4" rigid metal conduit (RMC) and intermediate metal conduit (IMC) runs.
  • Erickson-Style Design: Three-piece coupling construction permits joining two conduit sections end-to-end without rotating either length, ideal for retrofit and confined-space installations.
  • Secure Mechanical Connection: Threaded body sections draw together to create a tight, stable joint between conduit runs.
  • Reliable Continuity: Provides a dependable electrical and mechanical bond at the splice point, supporting proper grounding continuity through the raceway system.
  • Thomas & Betts Build Quality: Manufactured by Thomas & Betts, a recognized supplier of conduit fittings and raceway hardware for commercial and industrial electrical work.
  • Versatile Application: Suited for use wherever fixed conduit sections must be coupled without the ability to spin either piece into place.

Technical Specifications

  • Trade Size: 3/4"
  • Type: Erickson Coupling
  • Model: 676-TB (THB676-TB)
  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • Joining Fixed Rigid Metal Conduit (RMC) Runs
  • Intermediate Metal Conduit (IMC) Installations
  • Panelboard and Enclosure Conduit Connections
  • Retrofit and Renovation Electrical Work
  • Commercial and Industrial Raceway Systems
  • Tight-Clearance Conduit Splices

Why Thomas & Betts?

Thomas & Betts is a well-established manufacturer of conduit fittings and electrical raceway components trusted by contractors for dependable, code-compliant hardware. The 676-TB Erickson coupling reflects that standard, delivering a secure three-piece connection engineered specifically for situations where standard couplings cannot be used. Choose the Thomas & Betts 676-TB for a reliable, purpose-built solution to fixed-conduit coupling challenges on your next electrical installation.

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Manufacturer Resources

Product Specs

list_batch:
TB-20260924
Product Type:
Erickson Couplings
Department:
Electrical
Product Subgroup:
Conduit Fittings
Product Size:
3/4"
Product Group:
Conduit & Raceway

Thomas & Betts 676-TB – Frequently Asked Questions

1) How do you couple two rigid conduit runs that are already fixed in place and can't be turned?
That is exactly what the Thomas & Betts 676-TB is for. It is a three-piece Erickson-style coupling: instead of spinning one conduit into a solid threaded coupling, the body sections draw together onto two stationary conduit ends, so neither length has to rotate. Typical uses are panelboard and enclosure connections, retrofit work, and splices in tight clearance where there is no room to turn pipe.
2) What size conduit does the Thomas & Betts 676-TB Erickson coupling fit?
It is sized for 3/4 inch trade size conduit, and it works on both rigid metal conduit (RMC) and intermediate metal conduit (IMC), which share the same thread. For any other trade size you need the matching size in the Erickson line, not this one.
3) Can I use a 676-TB Erickson coupling on EMT?
No. The 676-TB is a threaded fitting made for 3/4 inch rigid metal conduit and IMC, both of which are threaded. EMT is unthreaded thinwall and takes a set-screw or compression coupling instead.
4) Erickson coupling vs. a standard threaded coupling - which one do I need?
Use a standard threaded coupling when you can rotate one piece of conduit into it, which is the cheaper and simpler joint. Reach for the 676-TB Erickson when both ends are already strapped, anchored, or landed on a box and neither can spin. The Erickson's three-piece construction is the only way to close that joint without cutting conduit loose.
5) Does an Erickson coupling maintain ground continuity through the raceway?
Yes. The 676-TB makes both a mechanical and an electrical bond at the splice, so grounding continuity carries through the conduit run at the coupling point. Threads on both conduit ends must be clean and fully engaged for that bond to hold.
6) What part number do I order for the 3/4 inch Thomas & Betts Erickson coupling?
Order Thomas & Betts 676-TB. It also shows up in some catalogs as THB676-TB. One model covers the 3/4 inch size; there are no finish or option choices to specify.
7) Is the 676-TB suitable for commercial and industrial conduit work?
Yes, it is built for commercial and industrial raceway systems, including panelboard and enclosure terminations and renovation work where existing rigid conduit has to be extended or repaired in place.
How fast can I get the Thomas & Betts 676-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 676-TB come with a warranty?
Absolutely. The Thomas & Betts 676-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 676-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
Why buy the Thomas & Betts 676-TB from ZenSupply?
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