Topaz Lighting 431TBS EMT Comp...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$677.63
Topaz Lighting 431TBS EMT Compression Top-Bite Combination Coupling, Steel, Zinc-Plated

Topaz Lighting 431TBS EMT Compression Top-Bite Combination Coupling, Steel, Zinc-Plated

(No reviews yet) Write a Review

Model: 432TBS

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

$677.63
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

Topaz Lighting 431TBS EMT Compression Top-Bite Combination Coupling, Steel, Zinc-Plated

The Topaz Lighting 431TBS EMT Compression Top-Bite Combination Coupling is a saddle-type fitting engineered to securely join flexible (FLEX), AC, and MC cables to EMT conduit in a single, reliable connection. Constructed from high-strength steel with a zinc-plated finish, this one-piece tubular coupling delivers optimal product integrity and long-lasting resilience for demanding electrical work. This combination coupling is available across trade sizes from 1/2" to 3/4", giving electricians a single fitting family that covers common conduit and cable transition needs. It is UL Listed and built for fast, dependable installation on commercial and industrial wiring projects.

Key Features

  • Trade Size Range: Available in 1/2" to 3/4" sizes, providing versatile compatibility across common conduit and cable applications.
  • Combination Coupling Design: Saddle-type Top-Bite configuration securely joins FLEX, AC, and MC cables to EMT conduit in one fitting, eliminating the need for separate adapters.
  • Compression Type Connection: Compression-style termination ensures a secure, reliable mechanical connection to EMT conduit for consistent performance.
  • Durable Construction: High-strength steel construction provides superior mechanical strength and long-term durability in demanding electrical installations.
  • One-Piece Tubular Design: Single-piece tubular body maximizes product integrity and longevity by eliminating potential failure points found in multi-piece assemblies.
  • Zinc-Plated Finish: Zinc-plated steel finish provides corrosion resistance and resilience for extended service life.
  • Easy Installation: Saddle-type design simplifies field installation, reducing labor time on commercial and industrial wiring projects.

Certifications & Compliance

  • UL Listed

Technical Specifications

  • Conduit Type: EMT
  • Pack Size: 100

Typical Applications

  • Joining flexible (FLEX), AC, and MC cables to EMT conduit in commercial and industrial wiring systems
  • Conduit and raceway transition points requiring a combination coupling fitting
  • New construction and renovation electrical installations
  • Panel and equipment connections where EMT meets flexible cable assemblies
  • Industrial facilities requiring durable, code-compliant conduit fittings

Why Topaz Lighting?

Topaz Lighting's 431TBS Top-Bite Combination Coupling is built from high-strength steel with a zinc-plated finish, delivering the mechanical integrity and corrosion resistance that professional electricians demand. The one-piece tubular construction ensures consistent, reliable performance across the full 1/2" to 3/4" size range. UL Listed and designed for straightforward installation, this fitting supports code-compliant electrical work in both commercial and industrial environments.

Product Specs

Product Type:
Combination Coupling
Conduit Type:
EMT
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 432TBS – Frequently Asked Questions

1) Can I use a Topaz 431TBS combination coupling to tie MC cable into an EMT run?
That is exactly what the 431TBS is for. It is a saddle-type Top-Bite combination coupling that joins flexible (FLEX), AC, and MC cable to EMT conduit in one fitting, so you don't need a separate connector on each side and a chase nipple between them. The EMT side is a compression termination. Typical spots are panel and equipment connections where an EMT raceway transitions to a flexible whip.
2) What trade sizes does the Topaz Top-Bite EMT combination coupling come in, and which part number is which?
Two sizes: 1/2 inch is part number 431TBS and 3/4 inch is 432TBS. Both are the same steel, zinc-plated Top-Bite saddle design. Order by the trade size of the EMT you are landing on, not by the cable diameter.
3) Will a Top-Bite combination coupling work on rigid or IMC conduit instead of EMT?
No. The 431TBS terminates EMT only, using a compression connector on the conduit side. Rigid and IMC are threaded and need a threaded combination fitting or a threaded-to-EMT adapter instead. Check what the raceway actually is before you order, because a compression body will not thread onto rigid.
4) How many Topaz 431TBS couplings come in a box?
They ship 100 to a pack. For a contractor pulling a floor of MC drops off an EMT feeder that is usually a single box per size, so decide up front whether you want 1/2 inch (431TBS), 3/4 inch (432TBS), or both on the truck.
5) Do I need a separate EMT connector and MC connector, or does one 431TBS do both ends?
One fitting does both. The Top-Bite combination coupling is a single-piece tubular body with the compression EMT termination on one end and the saddle Top-Bite cable side on the other, so the transition is one part and one set of screws instead of two connectors joined together. Fewer joints in the run also means fewer places to lose continuity.
6) What is the difference between the 431TBS and the 432TBS Topaz coupling?
Trade size, nothing else. 431TBS is the 1/2 inch and 432TBS is the 3/4 inch; both are steel, zinc-plated, UL Listed Top-Bite combination couplings with a compression EMT end. Distributors stocking the family generally carry both, since 1/2 inch covers branch circuit whips and 3/4 inch covers heavier feeders and larger MC.
How fast can I get the Topaz Lighting 432TBS 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 432TBS come with a warranty?
Absolutely. The Topaz Lighting 432TBS 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 432TBS?
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 432TBS from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
!