Topaz Lighting Zinc Die-Cast C...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$20.18
Topaz Lighting Zinc Die-Cast Compression EMT Coupling

Topaz Lighting Zinc Die-Cast Compression EMT Coupling

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Model: TOP-670

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

$20.18
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Topaz Lighting Zinc Die-Cast Compression EMT Coupling

The Topaz Lighting Zinc Die-Cast Compression EMT Coupling delivers a secure, concrete-tight joining solution for thin-wall EMT conduit systems. Engineered with a compression-type design for fast, reliable installation, this coupling is constructed of naturally corrosion-resistant zinc die-cast material and is available in sizes from 1/2" to 4". UL Listed and NEMA/ANSI FB-1 compliant, it is built to meet the demands of professional electrical installations in commercial and industrial environments.

Key Features

  • Compression-Type Design: Tool-friendly compression connection method ensures a concrete-tight, secure fit for EMT conduit, promoting fast and reliable installation.
  • Durable Zinc Die-Cast Construction: Naturally corrosion-resistant zinc die-cast material provides long-lasting performance in demanding electrical environments.
  • Concrete Tight: Compression design achieves a concrete-tight seal, making it suitable for use in concrete encasement and other demanding raceway applications.
  • Wide Size Range: Available in sizes from 1/2" to 4" to accommodate a broad range of EMT conduit installations.
  • EMT Conduit Compatibility: Specifically designed for use with thin-wall EMT conduit, ensuring proper fit and code-compliant performance.
  • Code-Ready Compliance: UL Listed and NEMA/ANSI FB-1 compliant, meeting the standards required for professional electrical work.

Certifications & Compliance

  • UL Listed
  • NEMA/ANSI FB-1 Compliant
  • Concrete Tight Rating

Technical Specifications

  • Size: 4"

Typical Applications

  • Commercial and Industrial Electrical Conduit Systems
  • EMT Raceway Installations Requiring Concrete-Tight Connections
  • Concrete Encasement and Embedded Conduit Runs
  • New Construction and Renovation Electrical Projects
  • Panelboard and Distribution Wiring Raceway Systems

Why Topaz Lighting?

Topaz Lighting EMT couplings are manufactured from naturally corrosion-resistant zinc die-cast, ensuring durability and long-term reliability in professional electrical installations. Each coupling is UL Listed and NEMA/ANSI FB-1 compliant, giving electricians and contractors confidence in code-compliant performance. With a compression-type design that delivers concrete-tight connections and availability across a full range of sizes from 1/2" to 4", Topaz Lighting couplings are a dependable choice for any EMT conduit system.

Product Specs

Product Type:
Coupling
Conduit Type:
EMT
Connection Type:
Compression
Listing:
UL Listed
Department:
Electrical
Product Group:
Conduit & Raceway
Product Subgroup:
Conduit Bodies & Fittings
Product Material:
Zinc Die-Cast
Product Size:
4"
Pack size (unit):
100

Topaz Lighting TOP-670 – Frequently Asked Questions

1) Will a Topaz compression EMT coupling work with rigid or IMC conduit, or only EMT?
EMT only. The Topaz zinc die-cast compression coupling is built for thin-wall EMT, and the compression ring and nut are sized to EMT's wall and outside diameter. Rigid and IMC are threaded and take a threaded coupling instead, so don't substitute this fitting on those runs.
2) Can I use a compression EMT coupling in a concrete pour?
Yes. The compression design on the Topaz coupling is rated concrete tight, so it can be used in concrete encasement and embedded EMT runs. That is the main reason to pick compression over a set-screw coupling, which is not concrete tight and is limited to dry indoor locations.
3) What size EMT does Topaz part number 670 fit?
Part 670 is the 4 inch coupling, for joining two lengths of 4 inch EMT. Topaz makes the same compression coupling across a 1/2 inch through 4 inch range, so match the part to the trade size of the conduit you are running.
4) Is this EMT coupling UL Listed for an inspected commercial job?
It is UL Listed and compliant with NEMA/ANSI FB-1, which is the fittings standard inspectors look for on commercial and industrial raceway work.
5) Do I need to thread or glue this coupling, or what tools does the install take?
No threading and no adhesive. Slip the EMT into each end of the coupling and tighten the compression nuts with a wrench; the gland ring grips the conduit and seals the joint. That is why compression fittings go in faster than threaded rigid couplings on long raceway runs.
6) Compression coupling or set-screw coupling for my EMT run?
Use compression where the raceway is in concrete, outdoors, or anywhere you need a concrete tight joint. Set-screw is the cheaper choice and is fine for dry interior work above ceilings and in walls. The Topaz zinc die-cast coupling here is the compression type, in sizes 1/2 inch to 4 inch.
7) How many compression couplings come in a box?
The Topaz compression EMT couplings are packed 100 to a unit, which suits stocking a truck or an MRO crib rather than buying onesies for a single repair.
8) Will zinc die-cast couplings hold up in a damp or industrial environment?
Zinc die-cast is naturally corrosion resistant, which is why Topaz uses it on these EMT couplings for commercial and industrial installs. For a concrete-encased or generally damp location, the concrete tight compression joint is the part that matters as much as the metal.
How fast can I get the Topaz Lighting TOP-670 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 Topaz Lighting TOP-670 come with a warranty?
Absolutely. The Topaz Lighting TOP-670 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 Topaz Lighting TOP-670?
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 Topaz Lighting TOP-670 from ZenSupply?
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