Bridgeport Fittings 280SP 1/2"...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$5.92
Bridgeport Fittings 280SP 1/2" x 3/8" Die-Cast Zinc EMT Combination Coupling

Bridgeport Fittings 280SP 1/2" x 3/8" Die-Cast Zinc EMT Combination Coupling

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Model: 280SP

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

$5.92
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Bridgeport Fittings 1/2" x 3/8" Die-Cast Zinc EMT Combination Coupling

Bridgeport Fittings' 1/2" x 3/8" EMT combination coupling is engineered to join electrical metallic tubing (EMT) conduit runs of two different trade sizes in a single, secure connection. Constructed from die-cast zinc for long-term corrosion resistance and mechanical strength, this combination coupling features a 1-screw set-screw connection on the 1/2" end for fast, tool-driven installation. Part of Bridgeport Fittings' Mighty-Merge® line of combination fittings, it streamlines transitions between mismatched EMT conduit sizes in commercial and industrial raceway systems. This combination coupling is designed for use wherever EMT conduit installations require a dependable transition between trade sizes without cutting or re-threading conduit.

Key Features

  • Trade Size: 1/2" x 3/8" combination sizing allows electricians to transition between EMT trade sizes without additional adapters.
  • Durable Construction: Die-cast zinc body construction resists corrosion and delivers long-lasting mechanical strength in conduit raceway installations.
  • Set-Screw Connection: A 1-screw design secures the 1/2" EMT conduit end with a simple, tool-driven screw connection for quick, reliable installation.
  • Combination Coupling Design: Purpose-built to merge two different EMT conduit trade sizes into one continuous raceway run, eliminating the need for separate reducers.
  • Compact Combination Fitting: Combines two trade sizes in a single fitting, reducing the number of separate couplings and reducers needed on the job.
  • Mighty-Merge® Series: Part of Bridgeport Fittings' Mighty-Merge® combination coupling line, engineered specifically for dependable trade-size transitions.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • Commercial and Industrial EMT Conduit Installations
  • Transitioning Between Mismatched EMT Conduit Trade Sizes
  • Raceway and Conduit System Runs
  • Junction Box and Panelboard Connections
  • Electrical Contractor and MRO Stock Applications
  • New Construction and Renovation Electrical Wiring

Why Bridgeport Fittings?

Bridgeport Fittings builds its combination couplings from die-cast zinc for dependable strength and corrosion resistance in demanding raceway applications. The 1-screw set-screw connection reflects a focus on straightforward, professional-grade installation for electrical contractors. Electricians rely on the Mighty-Merge® line for consistent, code-compliant transitions between EMT conduit trade sizes. Backed by Bridgeport Fittings' commitment to quality manufacturing, this coupling helps installers complete raceway transitions quickly while maintaining a secure, code-compliant connection throughout the electrical system.

Manufacturer Resources

Product Specs

list_batch:
BPF-20260918
Product Type:
Combination Coupling
Connection Type:
Set Screw
Department:
Electrical
Product Subgroup:
Flexible Conduit & Fittings
Product Material:
Die-Cast Zinc
Product Size:
1/2"
Product Group:
Conduit & Raceway

Bridgeport Fittings 280SP – Frequently Asked Questions

1) What does the Bridgeport Fittings 280SP combination coupling actually connect?
The 280SP joins a 1/2 inch EMT conduit run to a 3/8 inch EMT run in one fitting, so you don't have to stack a coupling and a reducer to change trade size. It's part of Bridgeport's Mighty-Merge combination coupling line, and it lets you transition without cutting or re-threading conduit.
2) How does the 1/2 x 3/8 EMT combination coupling secure the conduit, compression or set screw?
Set screw. The 280SP uses a 1-screw set-screw connection on the 1/2 inch end, driven with a standard screwdriver or nut driver. If your job calls for a wet-location or concrete-pour rated raceway, a set-screw fitting is the wrong choice there; you'd want a compression-style EMT fitting instead.
3) Can I use the 280SP to adapt 3/8 inch flexible conduit to 1/2 inch EMT?
No. The 280SP is an EMT-to-EMT combination coupling, both ends sized for electrical metallic tubing at 1/2 inch and 3/8 inch. For a flex-to-EMT transition you need a combination fitting specifically listed for flexible metal conduit on one end.
4) Is the Bridgeport 280SP coupling steel or zinc, and will it hold up in a damp mechanical room?
The body is die-cast zinc, chosen for corrosion resistance and mechanical strength in raceway runs. It holds up in ordinary indoor commercial and industrial environments, including mechanical spaces, but as a set-screw fitting it isn't a raintight or concrete-tight assembly.
5) Do I need any extra hardware or a locknut to install the 280SP coupling?
No separate reducer or adapter is needed, that's the point of the fitting, and the set screw is built in. It is a conduit-to-conduit coupling, not a box connector, so it does not include a locknut and will not terminate into a panel or junction box knockout. For a box entry you still need an EMT connector.
How fast can I get the Bridgeport Fittings 280SP 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 Bridgeport Fittings 280SP come with a warranty?
Absolutely. The Bridgeport Fittings 280SP 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 Bridgeport Fittings 280SP?
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
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