Bridgeport Fittings 5157-DC Mi...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$15.37
Bridgeport Fittings 5157-DC Mighty-Merge EMT to Two AC Coupling, 3/4" to 3/8" Compression Nut, Die-Cast Zinc

Bridgeport Fittings 5157-DC Mighty-Merge EMT to Two AC Coupling, 3/4" to 3/8" Compression Nut, Die-Cast Zinc

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Model: 5157-DC

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

$15.37
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Bridgeport Fittings 5157-DC Mighty-Merge EMT to Two AC Coupling, 3/4" to 3/8" Compression Nut, Die-Cast Zinc

The Bridgeport Fittings 5157-DC Mighty-Merge coupling is a die-cast zinc combination fitting engineered to join 3/4" EMT conduit to two separate AC or MC cable runs through 3/8" compression nuts. Designed for electricians who need to consolidate conduit and armored cable connections at a single point, this Mighty-Merge coupling reduces the number of individual fittings required in a box or enclosure, saving both space and installation time. Its rugged die-cast zinc body delivers the strength and corrosion resistance professional installers expect from Bridgeport Fittings products, making it a practical solution for jobs that mix EMT and AC/MC wiring methods.

Key Features

  • Trade Size: 3/4" EMT connection transitions to two 3/8" compression nut outlets for AC/MC cable connections.
  • Durable Construction: Die-cast zinc body resists corrosion and provides long-lasting mechanical strength for demanding job-site conditions.
  • Mighty-Merge Design: Combines one EMT conduit termination with two separate AC/MC cable connections in a single fitting, simplifying box fill and reducing installation time.
  • Compression Nut Connection: 3/8" compression nuts secure armored cable connections for a tight, reliable termination at each outlet.
  • Space-Saving Combination Fitting: Eliminates the need for multiple standalone connectors when merging EMT and AC/MC wiring methods in the same box.
  • Compact Combination Body: Consolidates conduit and cable transitions into one die-cast fitting, saving valuable space inside boxes and enclosures.
  • Professional-Grade Zinc Alloy: Die-cast zinc alloy construction is engineered for durability in commercial and industrial electrical installations.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • Combining EMT Conduit and AC/MC Cable Runs at a Single Termination Point
  • Commercial and Industrial Electrical Installations
  • Junction Box and Panel Wiring Transitions
  • Renovation Projects Merging Conduit and Armored Cable Systems
  • New Construction Electrical Rough-In
  • Multi-Circuit Wiring Consolidation in Tight Enclosures

Why Bridgeport Fittings?

Bridgeport Fittings is a trusted manufacturer of electrical conduit fittings and connectors built for code-compliant, professional installations. The 5157-DC Mighty-Merge coupling's die-cast zinc construction and combination design reflect Bridgeport Fittings' commitment to durable, space-efficient solutions that help electricians work faster without sacrificing reliability. By merging EMT and AC/MC connection points into a single die-cast body, the Mighty-Merge series simplifies box fill calculations and reduces the total fitting count on the job, giving contractors a dependable option for mixed-method conduit and cable installations.

Manufacturer Resources

Product Specs

list_batch:
BPF-20260918
Product Type:
Combination Coupling
Connection Type:
Compression
Series:
Mighty-Merge
Department:
Electrical
Product Subgroup:
Flexible Conduit & Fittings
Product Material:
Die-Cast Zinc
Product Size:
3/4"
Product Group:
Conduit & Raceway

Bridgeport Fittings 5157-DC – Frequently Asked Questions

1) What does the Bridgeport 5157-DC Mighty-Merge coupling actually connect?
It joins one run of 3/4 inch EMT conduit to two separate AC or MC cables in a single die-cast zinc body. The EMT end takes the 3/4 inch conduit; the two cable outlets use 3/8 inch compression nuts for the armored cable. That means one fitting instead of an EMT connector plus two AC/MC connectors at the same box opening.
2) Can a Kraloy 078005 PVC coupling be used in place of the Bridgeport 5157-DC?
No. The Kraloy 078005 is a CP15 1-1/2 inch PVC conduit coupling, which joins two lengths of rigid PVC conduit of the same trade size. The Bridgeport Fittings 5157-DC is a die-cast zinc Mighty-Merge combination fitting that terminates 3/4 inch EMT on one end and two AC/MC cable runs on 3/8 inch compression nuts on the other. Different materials, different trade sizes, and different wiring methods - use the Kraloy only where you are coupling PVC to PVC.
3) What cable sizes go into the 3/8 inch compression nuts on this Bridgeport combination fitting?
The two outlets are 3/8 inch AC/MC connector ports, which is the standard armored cable connector size used for common branch-circuit MC and AC cable. Each nut compresses down on its own cable for an independent termination, so you can land two separate circuits at one knockout.
4) Why use a Mighty-Merge coupling instead of separate EMT and MC connectors?
Box space and knockout count. A standalone approach burns three knockouts and three locknuts; the 5157-DC consolidates the EMT termination and both AC/MC terminations into one die-cast body at a single point. Electricians use it where a box or panel is crowded and on renovations where a conduit run has to pick up existing armored cable.
5) Can I use a PVC conduit coupling like the Kraloy CP15 in place of this Bridgeport EMT fitting?
No, they solve different problems. The Kraloy 078005 CP15 is a 1-1/2 inch PVC conduit coupling, meant to join two lengths of PVC conduit. The Bridgeport 5157-DC is a metallic transition fitting that takes 3/4 inch EMT on one end and two 3/8 inch AC/MC cables on the other. Different material system, different trade size, no substitution.
6) I need a coupling for a PVC conduit run, not EMT - what should I order instead of the 5157-DC?
For a rigid PVC run, the Kraloy 078005 CP15 coupling is the fitting that matches the method - it is a 1-1/2 inch PVC conduit coupling, solvent-weld style, for joining PVC to PVC. The Bridgeport 5157-DC is die-cast zinc and is built to bring 3/4 inch EMT together with two AC/MC cables on compression nuts, so it has no place in an all-PVC raceway.
7) Is the 5157-DC body metal, and will it hold up in a damp commercial environment?
The body is die-cast zinc alloy, chosen for corrosion resistance and mechanical strength in commercial and industrial work. It is a metallic fitting, so the raceway and cable armor stay in a continuous metal path through the coupling.
8) What is the exact part number to order this Bridgeport EMT to two-AC coupling?
Order Bridgeport Fittings part 5157-DC, from the Mighty-Merge series. It is a single trade size, 3/4 inch, so there is no size or finish option to specify.
How fast can I get the Bridgeport Fittings 5157-DC 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 5157-DC come with a warranty?
Absolutely. The Bridgeport Fittings 5157-DC 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 5157-DC?
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 Bridgeport Fittings 5157-DC from ZenSupply?
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