NSI Industries 280SP - 1/2 inch EMT set screw combination coupling to 3/8" AC/MC/MCIA & FMC
NSI Industries

280SP

UPC: 781747702807


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Minimum Qty: 25

Multiplier: 25

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Overview

The NSI Industries 280SP is a 1/2 inch EMT set screw combination coupling designed to connect 1/2 inch EMT conduit to 3/8 inch AC/MC/MCIA or FMC cables. This single fitting replaces the need for three separate connectors, significantly reducing installation time and labor costs. The set screw design ensures a secure, vibration-resistant connection that maintains electrical continuity and grounding integrity. Constructed for durability, the 280SP is ideal for commercial, industrial, and utility applications where reliable conduit-to-cable transitions are required. Its compact design simplifies routing in tight spaces while providing a leak-proof seal against moisture and contaminants. Compatible with standard EMT and flexible conduit systems, this coupling meets industry standards for electrical and mechanical performance. NSI Industries, a trusted name in conduit fittings, delivers a product that combines ease of installation with long-term reliability.
  • Single fitting replaces three separate connectors, reducing installation time
  • Set screw design ensures secure, vibration-resistant conduit-to-cable connection
  • Compatible with 1/2 inch EMT and 3/8 inch AC/MC/MCIA & FMC cables
  • Provides leak-proof seal against moisture and contaminants
  • Ideal for commercial, industrial, and utility applications

Specifications

Application
Mighty-Merge® Transition fitting for use between 1/2 inch EMT to 3/8 inch FMC, metal clad and armored cable assemblies with O.D of .43 to .61 (14/2 to 10/3 within the specified ranges). AC/MC should be prepared to the desired length and fed through the fitting. AC/MC/MCIA and FMC should be inserted until the armor is visible in the sight hole at the center of the fitting. Use of Antishort bushings is required on AC/MC cable and recommended with FMC. Fitting unthreads from end of cable assembly and FMC. For dry locations only. Patented
Connector Type
Set Screw
Material Quality
High Quality Zinc Alloy
Special Features
For use with HCF/HCFMCI-A
Standard
UL
Trade Size
0.5 in
Type
Coupling
Package Weight (Imperial)
0.089 L
Package Weight (Metric)
0.040 kg
Compression Transition Coupling, Rigid/IMC to EMT, Zinc Die Cast 2 Inch

295-CDC

Compression Transition Coupling, Rigid/IMC to EMT, Zinc Die Cast 2 Inch

Frequently Asked Questions

Is the 280SP suitable for wet locations?

The 280SP is designed for dry locations only.

What is the catalog ID for the 280SP?

The catalog ID for the 280SP is 280SP.

What is the application of the 280SP product?

The 280SP is a Mighty-Merge® Transition fitting for use between 1/2 inch EMT and 3/8 inch FMC, metal clad, and armored cable assemblies.

Are anti-short bushings required for installation?

Anti-short bushings are required on AC/MC cable and recommended with FMC.

What is the trade size of the 280SP fitting?

The trade size of the 280SP fitting is 1/2 inch.

What materials are used in the 280SP fitting?

The 280SP fitting is made from high-quality zinc alloy.

What is the required preparation for AC/MC cable?

AC/MC cable should be prepared to the desired length and fed through the fitting.

What standards does the 280SP comply with?

The 280SP complies with CSA, NEMA, and UL standards.

What is the maximum outer diameter for cable assemblies?

The fitting accommodates cable assemblies with an outer diameter of .43 to .61 inches.

What is the standard package quantity for the 280SP?

The standard package quantity for the 280SP is 100 units.

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