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

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

UPC: 781747702807


Documents & Media
Specification SheetVideo ClipWarrantyConflict Minerals Report

Contact for Pricing

Minimum Qty: 25

Multiplier: 25

*Contact for lower quantities*

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The NSI Industries 280SP is a 1/2" EMT set screw combination coupling designed to transition between 1/2" EMT conduit and 3/8" AC/MC/MCIA or FMC cables. This single fitting replaces multiple connectors, reducing installation time and labor costs by eliminating the need for separate adapters. The set screw design ensures a secure, vibration-resistant connection that maintains electrical continuity and grounding integrity, critical for industrial and commercial applications. Constructed from high-quality zinc alloy, the 280SP meets NEMA Standard FB-1 and UL Standard 514B requirements. Its compact dimensions (1.93" x 0.93") allow for easy routing in tight spaces while providing a leak-proof seal against moisture and contaminants. The coupling accommodates cable outer diameters from 0.43" to 0.61" (14/2 to 10/3 wire sizes), making it compatible with standard EMT and flexible conduit systems. Ideal for fixture whips above drop ceilings, emergency lighting runs, and other applications requiring conduit-to-cable transitions, the 280SP is engineered for dry locations. Antishort bushings are required on AC/MC cable and recommended for FMC to prevent damage during installation.
  • Single fitting replaces multiple connectors for EMT to AC/MC/FMC transitions
  • Set screw design ensures secure, vibration-resistant electrical continuity
  • Zinc alloy construction meets NEMA FB-1 and UL 514B standards
  • Compact 1.93" x 0.93" dimensions for tight space routing
  • Accommodates cable O.D. 0.43" to 0.61" (14/2 to 10/3 wire sizes)

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
Split Bushing, Insulated, Grounding, Zinc Die Cast, Size 4 Inch, 14-1/0 Lug

SGB-390CL

Split Bushing, Insulated, Grounding, Zinc Die Cast, Size 4 Inch, 14-1/0 Lug
Split Bushing, Insulated, Plastic, 3.5 Inch Trade Size.Patented

SB-389NM

Split Bushing, Insulated, Plastic, 3.5 Inch Trade Size.Patented
Split Bushing, Insulated, Plastic, 3 Inch Trade Size. Patented

SB-388NM

Split Bushing, Insulated, Plastic, 3 Inch Trade Size. Patented
Split Bushing, Insulated, Plastic, 1 Inch Trade Size. Patented

SB-383NM

Split Bushing, Insulated, Plastic, 1 Inch Trade Size. Patented
Split Bushing, Insulated, Plastic, 4 Inch Trade Size. Patented

SB-390NM

Split Bushing, Insulated, Plastic, 4 Inch Trade Size. Patented
Split Bushing, Insulated, Plastic, 2 Inch Trade Size. Patented

SB-386NM

Split Bushing, Insulated, Plastic, 2 Inch Trade Size. Patented
Split Bushing, Insulated, Plastic, 2.5 Inch Trade Size. Patented

SB-387NM

Split Bushing, Insulated, Plastic, 2.5 Inch Trade Size. Patented

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.

Frequently Asked Questions about NSI Industries

How are Tork products typically installed?

Tork products are typically installed by trained technicians who follow a comprehensive commissioning process. This includes verifying the work environment, conducting electrical installation checks, performing internal and external equipment inspections, powering on the system, and executing operational tests to ensure compatibility and reliability.

What environmental ratings do Tork products have?

Tork products are designed to meet various environmental ratings, including NEMA Type 4X and Type 6, which provide protection against corrosion, windblown dust, rain, and occasional temporary submersion. These ratings ensure that Tork products can withstand harsh industrial environments while maintaining operational integrity.

What communication protocols do Tork products support?

Tork products support a comprehensive range of communication protocols, including PROFIBUS DP V1, PROFINET with dual port, EtherNet/IP with dual port, CANopen, and Modbus RTU integrated as standard. These protocols facilitate flexible network integration and high-performance communication across various industrial automation systems.

What are the key features of Tork products?

Tork products are designed with advanced features that enhance efficiency and reliability in industrial applications. Key features include integrated harmonics and EMC design for improved power quality, removable terminals for quick installation, and USB ports for easy troubleshooting. Additionally, Tork solutions emphasize user-friendly setup with application wizards and memory modules for convenient parameter management.

What are the main product lines offered by Tork?

Tork offers a diverse range of products primarily focused on industrial automation, including TORK® Photocontrols, lighting controls, and various electrical components such as enclosures, occupancy sensors, and grounding solutions. These products are designed to enhance efficiency and reliability in commercial and industrial applications.

What technical support does Tork offer?

Tork offers a comprehensive range of technical support services, including 24/7 customer support, on-site service management, and a technical hotline network. With three advanced technical support centers and over 8,000 hours of technical training conducted annually, Tork ensures certified expertise across 25+ languages to assist customers effectively. Their commitment to service is reflected in a 98% Service Level Agreement compliance rate, providing reliable support for all operational needs.

What industries and applications are Tork products used for?

Tork products are utilized across a variety of industries, including food processing, healthcare, hospitality, and manufacturing. They are designed for applications such as hand hygiene, surface cleaning, and dispensing solutions, ensuring efficiency and compliance in environments that require high standards of cleanliness and safety.

What certifications and standards do Tork products comply with?

Tork products comply with UL and cUL certifications, ensuring they meet rigorous safety and performance standards. Additionally, many models are designed to meet NEMA enclosure ratings, providing protection against environmental factors.

How are Remke products typically installed?

Remke products are typically installed through a systematic process that includes site audits to verify proper wiring, followed by remote or on-site commissioning. This commissioning involves installation verification, programming, and communication testing to ensure the system operates reliably and meets design specifications.

What accessories are available for Remke products?

Remke offers a wide range of accessories for their products, including panel mounting kits, fuse holders for voltage inputs, ferrites for communication modules, and current transformers. These accessories enhance the functionality and protection of Remke's industrial automation solutions, ensuring reliable performance in various applications.