Topaz Lighting 271 Steel Compr...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$3.09
Topaz Lighting 271 Steel Compression Combination Coupling, EMT to Liquidtight, Zinc-Plated

Topaz Lighting 271 Steel Compression Combination Coupling, EMT to Liquidtight, Zinc-Plated

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Model: TOP-272

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

$3.09
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Topaz Lighting 271 Steel Compression Combination Coupling, EMT to Liquidtight, Zinc-Plated

The Topaz Lighting 271 Steel Compression Combination Coupling provides a secure, reusable mechanical connection between EMT and liquidtight conduit, available in 1/2" and 3/4" trade sizes to fit a range of installations. Built from steel with a zinc-plated finish for corrosion resistance, this compression-type combination coupling is engineered for rooftop HVAC air conditioning systems and motor hookups where a dependable EMT-to-liquidtight transition is required. The coupling features a re-usable ferrule for long-term value and is UL Listed for code-compliant performance in professional electrical work.

Key Features

  • Trade Sizes Available: Offered in 1/2" and 3/4" trade sizes to accommodate a range of EMT-to-liquidtight conduit connections.
  • Durable Steel Construction: Steel body delivers continued mechanical protection and reliable connectivity between conduit sections throughout the system.
  • Compression-Type Connection: Compression fitting design provides a secure, vibration-resistant connection ideal for rooftop HVAC and motor hookup applications.
  • EMT to Liquidtight Compatibility: Combination coupling design bridges EMT and liquidtight conduit systems, simplifying transitions in mixed-conduit installations.
  • Zinc-Plated Finish: Zinc plating provides corrosion resistance, extending service life in exposed or demanding environments.
  • Re-Usable Ferrule: The re-usable ferrule design allows for disassembly and reinstallation, reducing material waste and installation costs.

Certifications & Compliance

  • UL Listed

Technical Specifications

  • Conduit Type: EMT / Liquidtight
  • Pack Size: 100
  • PDF:Topaz Electrical Fittings & Supplies Catalog: https://zensupply.com/content/pdf/topaz-lighting/topaz-electrical-fittings-supplies-catalog.pdf

Typical Applications

  • Rooftop HVAC Air Conditioning Conduit Systems
  • Motor Hookup and Equipment Connection Wiring
  • EMT-to-Liquidtight Conduit Transitions
  • Commercial and Industrial Electrical Installations
  • Renovation and New Construction Raceway Systems

Why Topaz Lighting?

Topaz Lighting combination couplings are built from steel with a zinc-plated finish, delivering the mechanical strength and corrosion resistance required for professional-grade electrical installations. The compression-type design and re-usable ferrule reflect a commitment to reliable, code-compliant performance in the field, available in 1/2" and 3/4" trade sizes to fit common EMT-to-liquidtight applications. UL Listed and engineered for real-world use in HVAC rooftop systems and motor hookups, Topaz Lighting fittings are a trusted choice for electricians and contractors.

Product Specs

Product Type:
Coupling
Conduit Type:
EMT / Liquidtight
Connection Type:
Compression
Listing:
UL Listed
Department:
Electrical
Product Group:
Conduit & Raceway
Product Subgroup:
Conduit Bodies & Fittings
Product Material:
Steel
Product Color:
Zinc-Plated
Pack size (unit):
100
Product Finish:
Zinc-Plated
Product Size:
1/2" - 3/4"

Topaz Lighting TOP-272 – Frequently Asked Questions

1) What does the Topaz 271 combination coupling actually connect?
It joins EMT to liquidtight flexible conduit in one fitting, so you don't need a separate EMT connector and liquidtight connector married in a box. The EMT side is a compression connection with a re-usable ferrule, which means you can back it off and reinstall the same fitting if the run has to be redone. Typical use is a rooftop HVAC unit or a motor hookup where the rigid raceway has to transition to flex at the equipment.
2) What trade sizes does the Topaz 271 EMT-to-liquidtight coupling come in?
Two: 1/2 inch and 3/4 inch. The 1/2 inch is part number 271 and the 3/4 inch is part number 272. Both sides of the coupling are the same trade size, so a 1/2 inch fitting takes 1/2 inch EMT to 1/2 inch liquidtight. If you need to step between sizes, this isn't the fitting for it.
3) Is this coupling rated for outdoor or rooftop use?
The body is steel with a zinc-plated finish for corrosion resistance, and the intended application named by Topaz is rooftop HVAC air conditioning conduit and motor hookups. The compression side is a mechanical, vibration-resistant connection. For a wet location you still need to confirm your liquidtight connection and sealing ring are appropriate to the environment, and that the raceway is installed per the equipment listing.
4) Is the Topaz 271 UL Listed for inspection?
Yes, it carries a UL Listing. That's the piece an AHJ typically wants to see on a raceway fitting in commercial and industrial work.
5) Compression or set-screw for an EMT-to-liquidtight transition?
This Topaz fitting is the compression type. Compression holds better under vibration, which is why it's the choice at rooftop condensing units and motor terminations where the equipment shakes the raceway. Set-screw fittings are quicker and cheaper for dry indoor runs but tend to work loose where there's constant movement. The compression ferrule on the 271 is also re-usable, so a fitting pulled during a change can go back on.
6) How many couplings come in a box?
Topaz packages the 271 combination coupling 100 to a pack. That's a contractor carton, not a single fitting, so plan the quantity against the job rather than buying one for a single transition.
7) Is this a die-cast fitting or steel?
Steel body, zinc plated. That matters if your spec sheet or a facility standard calls out steel fittings rather than die cast zinc for the raceway system, which is common on industrial and institutional jobs.
How fast can I get the Topaz Lighting TOP-272 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-272 come with a warranty?
Absolutely. The Topaz Lighting TOP-272 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-272?
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-272 from ZenSupply?
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