Thomas & Betts 1/2 Inch Steel EMT Compression Coupling with Zinc Plated Finish
Professional EMT Conduit Connection Solution
The Thomas & Betts 1/2 inch steel EMT compression coupling delivers reliable electrical metallic tubing connections with professional-grade steel construction and zinc plated finish for enhanced corrosion resistance. This compression-type coupling provides secure, code-compliant connections for EMT conduit systems in commercial and industrial electrical installations.
Professional Features & Benefits
- 1/2 Inch Size: Compatible with standard 1/2 inch EMT conduit for versatile installation applications
- Steel Construction: Durable steel material provides long-lasting mechanical strength and reliability
- Compression Design: Secure compression connection ensures reliable electrical continuity and mechanical bond
- Zinc Plated Finish: Corrosion-resistant coating extends service life in demanding environments
- UL Listed: UL E16592 certification ensures compliance with electrical safety standards
- Professional Grade: Designed for commercial and industrial EMT conduit system applications
Technical Specifications
- Department: Electrical
- Idea Granular Category Code Igcc: 4611 >> Electrical metallic tubing EMT connectors
- Material: Steel
- Product Group: Connectors
- Product Subgroup: Electrical Connectors
- Product Type: EMT Conduit Fittings
- Selling Unit Of Measure: each
- Standards: UL E16592
- Surface Finishing: Zinc Plated
Professional Applications
- Commercial Building Electrical Systems
- Industrial Facility Conduit Installations
- Retail and Office Electrical Infrastructure
- Educational and Healthcare Facilities
- Multi-Unit Residential Properties
- Professional Electrical Contractor Projects
Why Choose Thomas & Betts Quality?
Thomas & Betts delivers proven reliability with UL listed certification and professional-grade steel construction with zinc plated finish for long-term performance. This compression coupling meets rigorous electrical safety standards while providing the durability and corrosion resistance required for demanding commercial and industrial applications.
Manufacturer Resources
Spec Sheet
Product Specs
- Idea Granular Category Code Igcc:
- 4611 >> Electrical metallic tubing EMT connectors
- Product Group:
- Conduit & Raceway
- Product Type:
- Conduit Coupling
- Selling Unit Of Measure:
- each
- Standards:
- UL E16592
- Surface Finishing:
- Zinc Plated
- Department:
- Electrical
- Product Subgroup:
- Conduit Fittings
- Product Material:
- Steel
Thomas & Betts TK111A – Frequently Asked Questions
1) Will a steel zinc plated EMT coupling hold up in a damp or corrosive area?
The zinc plating on the steel body gives corrosion resistance suited to typical commercial and industrial interiors, including mechanical rooms and parking structures. It is not described as raintight or concretetight. For a concrete pour you want a concretetight fitting such as the American Fittings ER rigid coupling, and for a wet outdoor transition from EMT to IMC or rigid, the Bridgeport 291-RT Mighty-Merge raintight coupling is the type to look at.
2) I need to join 1/2 inch EMT to threaded rigid conduit. Is this the right fitting?
No. The TK111A is an EMT to EMT coupling. For a transition between EMT and IMC or rigid, use a transition coupling such as the Bridgeport Fittings 291-RT Mighty-Merge, which is made for that joint (that one is 3/4 inch to 3/4 inch, so match your trade size).
3) Is a compression EMT coupling better than a set screw coupling for my install?
Compression couplings like the TK111A use a gland nut and ring that squeezes down on the tubing, which gives a tighter mechanical grip and better electrical continuity than a set screw type. Set screw couplings are quicker and cheaper for dry indoor work in a protected location. Compression is what inspectors generally expect where the connection may see moisture or vibration. Note that compression and raintight are not the same claim; if you specifically need a raintight transition, that is a different fitting.
4) What is the exact part number to order for a Thomas & Betts 1/2 inch steel EMT compression coupling?
Order Thomas & Betts TK111A. It is the 1/2 inch steel compression EMT coupling with a zinc plated finish, and there is no handing, length, or finish choice to specify beyond that number.
5) Is the American Fittings ER coupling a substitute for the Thomas & Betts TK111A?
No. The American Fittings ER is a concretetight coupling for rigid conduit, while the Thomas & Betts TK111A is a compression coupling for 1/2 inch electrical metallic tubing. Rigid conduit is threaded and larger in outside diameter than EMT of the same trade size, so the two are not interchangeable on the same run. Both use a zinc coating on steel.
6) What is the difference in body material between these couplings?
The Thomas & Betts TK111A uses steel with a zinc plated finish. The American Fittings ER is also steel, electroplated zinc. The Bridgeport Fittings 291-RT Mighty-Merge transition coupling is die cast zinc. Steel-bodied fittings are commonly specified where mechanical strength on exposed runs matters; die cast zinc bodies are typical of raintight transition fittings.
7) For a wet or outdoor location, is the TK111A the right coupling?
The Thomas & Betts TK111A is a compression-style steel EMT coupling, UL listed under E16592, with a zinc plated finish for corrosion resistance. If the installation calls out a raintight fitting specifically, the Bridgeport Fittings 291-RT Mighty-Merge is listed as raintight, though it is a 3/4 inch EMT to IMC/rigid transition rather than an EMT-to-EMT coupling.
8) Is the TK111A sold individually or only by the box?
It is sold each, so you can order the exact count a job needs rather than a full carton.
9) Do I need any tools or extra parts to install this EMT coupling?
No separate hardware is required. The compression coupling comes with its gland nuts and rings as an assembly; you cut and ream the EMT, slide the tubing in to the shoulder from each side, and tighten the nuts with a wrench. Nothing is threaded onto the conduit, so no dies or cutting oil.
How fast can I get the Thomas & Betts TK111A 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 TK111A come with a warranty?
Absolutely. The Thomas & Betts TK111A 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 TK111A?
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