Thomas & Betts 1.5 Inch Mallea...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$200.78
$112.16
Thomas & Betts 679 1.5 INCH ERICKSON COUPLING

Thomas & Betts 1.5 Inch Malleable Iron Erickson Conduit Coupling

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Model: 679
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$200.78
$112.16
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Thomas & Betts 1.5 Inch Malleable Iron Erickson Conduit Coupling

Professional Grade Conduit Connection Solution

The Thomas & Betts 1.5 Inch Malleable Iron Erickson Conduit Coupling delivers reliable conduit connection performance for electrical installations. Constructed from durable malleable iron material with precise 1-31/32 inch depth dimensions, this professional coupling ensures secure conduit joining for demanding electrical applications.

Professional Features & Benefits

  • 1.5 Inch Size: Accommodates standard 1.5 inch conduit for versatile electrical system compatibility
  • Malleable Iron Construction: Provides superior strength and durability for long-lasting conduit connections
  • Erickson Design: Features proven coupling configuration for reliable mechanical connection performance
  • 1-31/32 Inch Depth: Engineered dimensions ensure proper conduit engagement and secure installation
  • Professional Grade: Thomas & Betts quality construction meets demanding electrical installation requirements
  • Conduit System Integration: Designed for seamless integration with standard electrical conduit systems

Technical Specifications

  • Department: Electrical
  • Material: Malleable Iron
  • Number Of Batteries: 0
  • Product Group: Conduit & Fittings
  • Product Net Depth Length: 1-31/32 in
  • Product Subgroup: Couplings
  • Product Type: Conduit Coupling

Professional Applications

  • Commercial Electrical Installations
  • Industrial Conduit Systems
  • Residential Electrical Projects
  • Maintenance and Repair Operations
  • New Construction Electrical Work
  • Retrofit and Upgrade Projects

Why Choose Thomas & Betts Quality?

Thomas & Betts delivers proven reliability through precision-engineered malleable iron construction and professional-grade manufacturing standards. This Erickson coupling provides the durability and performance electrical professionals demand for critical conduit connection applications.

Manufacturer Resources

Product Specs

Number Of Batteries:
0
Product Group:
Conduit & Fittings
Product Net Depth Length:
1-31/32 in
Product Type:
Conduit Coupling
Department:
Electrical
Product Subgroup:
Couplings
Product Material:
Malleable Iron

Thomas & Betts 679 – Frequently Asked Questions

1) Will the Thomas & Betts 679 coupling fit 1-1/2 inch rigid conduit?
Yes. The 679 is sized for 1-1/2 inch (1.5 inch) trade size conduit, with standard rigid conduit threads on both ends. It is a threaded fitting, so it mates with threaded rigid metal conduit or IMC of that trade size, not with EMT, which is unthreaded and needs set-screw or compression fittings instead.
2) How much length does a 1-1/2 inch Erickson coupling add to my conduit run?
The 679 has a net depth of 1-31/32 inches, so plan on roughly two inches of fitting length in the run. That matters when you are closing a gap between two fixed ends: cut and thread so the assembled body has room to sit between them, with enough thread engagement on each conduit for the union to pull up tight.
3) Is this Erickson coupling metal, and is it strong enough for industrial conduit runs?
It is malleable iron, the standard body material for rigid conduit unions. Malleable iron takes the wrench torque needed to draw a union joint tight without cracking the way a casting would, which is why it is used on industrial and commercial rigid conduit rather than a die-cast zinc fitting.
4) Do I need to cut and re-thread the conduit to install an Erickson coupling?
Both conduit ends have to be threaded, since the 679 is a threaded fitting. If you are cutting into an existing run, cut out a section and field-thread the two ends, then thread the coupling's end pieces on and tighten the union body between them. Nothing has to rotate but the fitting itself.
5) What part number do I order for a 1-1/2 inch Thomas & Betts Erickson coupling?
Order Thomas & Betts part 679. That is the single 1-1/2 inch malleable iron Erickson coupling; the number covers the complete three-piece fitting, so you do not order the body and ends separately.
6) Can I use an Erickson coupling in a wet or outdoor location?
An Erickson union is a mechanical joint, not a sealed one. For a raintight or concrete-tight application the threads need to be made up tight and treated with an approved conduit thread compound, and where a run has to remain liquidtight a listed raintight fitting is the correct choice. The 679 malleable iron body itself is the same material used throughout rigid conduit systems indoors and out.
How fast can I get the Thomas & Betts 679 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 679 come with a warranty?
Absolutely. The Thomas & Betts 679 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 679?
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 679 from ZenSupply?
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