Topaz Lighting 3/4" EMT Set-Sc...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$5.27
Topaz Lighting 3/4" EMT Set-Screw to Flex Combination Coupling, Steel Zinc-Plated

Topaz Lighting 3/4" EMT Set-Screw to Flex Combination Coupling, Steel Zinc-Plated

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Model: 422TBS

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

$5.27
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Topaz Lighting 3/4" EMT Set-Screw to Flex Combination Coupling, Steel Zinc-Plated

The Topaz Lighting 3/4" EMT Set-Screw to Flex Combination Coupling is a saddle-type fitting engineered to securely join FLEX, AC, and MC cables to EMT conduit in a single, reliable connection. Constructed from high-strength steel with a zinc-plated finish, this combination coupling delivers outstanding resilience and long-term durability. The set-screw design ensures solid, code-compliant connections, while the dual gripping saddle clamps and tri combo head screw make installation fast and straightforward. UL Listed for professional electrical installations.

Key Features

  • Trade Size: 3/4" trade size, compatible with 3/8" to 3/4" FLEX, AC, and MC cables to EMT conduit systems.
  • Durable Construction: High-strength steel construction provides superior mechanical integrity and long-lasting performance in demanding electrical environments.
  • Zinc-Plated Finish: Zinc-plated finish offers corrosion resistance and resilience for extended service life.
  • Set-Screw Connection Type: Set-screw design assures solid, secure connections between FLEX/AC/MC cable and EMT conduit, minimizing the risk of loosening over time.
  • Saddle-Type Dual Gripping Clamps: Dual gripping saddle clamps firmly secure the flexible cable side, ensuring a stable mechanical and electrical bond.
  • Tri Combo Head Screw: Tri combo head screw accommodates multiple driver types for easy, versatile installation in the field.
  • One-Piece Construction: Single-piece design delivers optimal product integrity and longevity, reducing potential failure points.

Certifications & Compliance

  • UL Listed

Technical Specifications

  • list_batch: TOPAZ-20260727

Typical Applications

  • Joining FLEX, AC, and MC cables to EMT conduit in commercial and industrial wiring systems
  • Residential and commercial new construction electrical rough-in
  • Renovation and retrofit projects requiring EMT-to-flexible conduit transitions
  • Panelboard, load center, and equipment connection wiring
  • General conduit and raceway system assembly

Why Topaz Lighting?

Topaz Lighting's combination couplings are manufactured from high-strength steel with a zinc-plated finish, delivering the mechanical durability and corrosion resistance that professional electricians demand. The one-piece construction and UL Listed rating ensure code-compliant performance and long-term reliability on every job. From new construction to renovation work, Topaz Lighting fittings are built to meet the rigorous standards of commercial and industrial electrical installations.

Product Specs

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

Topaz Lighting 422TBS – Frequently Asked Questions

1) What does the Topaz 422TBS 3/4" combination coupling actually connect?
It joins flexible wiring on one side to EMT conduit on the other in a single fitting. The flex side is a saddle clamp that takes FLEX, AC, and MC cable from 3/8" up to 3/4"; the EMT side is a 3/4" set-screw connection. That saves you running a separate flex connector into a box and a separate EMT coupling, which is the usual reason electricians reach for a combo fitting on a whip or motor drop.
2) Is the Topaz 422TBS combination coupling UL Listed for commercial work?
UL Listed, yes. That's the rating inspectors look for on a raceway fitting in commercial and industrial installations, and it applies to this 3/4" EMT-to-flex combination coupling as supplied.
3) What is the Topaz 422TBS coupling made of, and can I use it in a damp or corrosive area?
Steel with a zinc-plated finish. Zinc plating gives corrosion resistance for normal indoor and general commercial use, and it's the standard finish on steel EMT fittings. For wet-location or heavily corrosive environments you'd want a fitting specifically rated raintight or a non-ferrous body; this one is a standard zinc-plated steel fitting.
4) Should I use a combination coupling or a separate flex connector and box?
A combination coupling like the Topaz 422TBS makes the EMT-to-flex transition directly in the raceway, with no box at the joint. That's the faster option for a straight transition, say EMT down a wall into a flex whip at a motor or fixture. Go with a box and separate connectors when you need a splice, a pull point, or a change of direction at that location, since the combo fitting gives you no access to the conductors.
5) How many 3/4" EMT to flex combo couplings come in a box?
Topaz packs the 422TBS 100 to the unit, which suits contractors and MRO stockrooms buying for a full rough-in rather than a single repair. There is one size on the item, 3/4".
6) What driver do I need to tighten the saddle clamp on this Topaz combo coupling?
The clamp uses a tri combo head screw, so a flat blade, a Phillips, or a nut driver will all seat in it. Handy overhead on a ladder when you've only got one driver on the belt. The clamp itself is a dual gripping saddle, and the body is one piece, so there's nothing loose to drop while you're setting it.
How fast can I get the Topaz Lighting 422TBS 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 422TBS come with a warranty?
Absolutely. The Topaz Lighting 422TBS 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 422TBS?
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 422TBS from ZenSupply?
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