NSI Industries 248-DC - Coupling, Set Screw, Zinc Die Cast, Size 3 1/2 Inch
NSI Industries

248-DC

UPC: 781747092489


Documents & Media
Specification SheetVideo ClipWarranty

Contact for Pricing

Overview

The NSI Industries 248-DC is a 3 1/2 inch set screw coupling designed for secure conduit connections in electrical metallic tubing (EMT) systems. Constructed from durable zinc die cast, this coupling provides a cost-effective alternative to steel fittings while meeting stringent UL performance and safety tests. Its set screw design ensures a reliable mechanical connection, preventing conduit separation under vibration or load. The 3 1/2 inch size accommodates standard EMT conduit applications, making it ideal for commercial and industrial electrical installations where compliance and durability are critical. Unlike malleable iron or aluminum alternatives, this zinc die cast coupling offers balanced corrosion resistance and mechanical strength at a lower price point. Applications include power distribution systems, building infrastructure, and industrial machinery where EMT conduit is specified. The coupling’s UL compliance ensures it meets NEC requirements for electrical installations, providing peace of mind for inspectors and contractors.
  • 3 1/2 inch size fits standard EMT conduit applications
  • Zinc die cast construction for corrosion resistance and cost efficiency
  • Set screw design ensures secure mechanical connections
  • UL-tested for performance and safety compliance
  • Ideal for commercial and industrial electrical installations

Specifications

Application
Used to join two lengths of EMT. 1/2" through 1 1/4" Concrete-tight, 1 1/2" thru 4" concrete-tight when taped. 2" thru 4" suitable for use with aluminum or steel EMT.
Connection Type
Set Screw
Connector Type
Set Screw
Material
Zinc Die Cast
Material Quality
Zinc Die Cast
Size
3 1/2 Inch
Special Features
Concrete tight
Standard
UL
Trade Size
3.5 in
Type
Coupling
Package Weight (Imperial)
1.400 L
Package Weight (Metric)
0.635 kg
Coupling, Set Screw, Zinc Die Cast, Size 1/2 Inch, Rigid

40-DC

Coupling, Set Screw, Zinc Die Cast, Size 1/2 Inch, Rigid
Coupling, Combination, Trade Size 3/4 Inch - 3/4 Inch, Clamping Range 0.78 Inch - 1.20 Inch, Length 1.93 Inch, Die Cast Zinc, EMT to Flex Set-Screw Type

TX212

Coupling, Combination, Trade Size 3/4 Inch - 3/4 Inch, Clamping Range 0.78 Inch - 1.20 Inch, Length 1.93 Inch, Die Cast Zinc, EMT to Flex Set-Screw Type

Frequently Asked Questions

Where is the coupling manufactured?

The coupling is manufactured in the USA.

What are the certifications for this product?

The product has certifications including CSA, UL, and complies with NEMA standards.

What material is the coupling made from?

The coupling is made from zinc die cast material.

What material is the coupling made from?

The coupling is made from zinc die cast material.

What are the certifications for this product?

The product has certifications including CSA, UL, and complies with NEMA standards.

Where is the coupling manufactured?

The coupling is manufactured in the USA.

What is the application of the coupling?

The coupling is used to join two lengths of EMT.

What is the catalog ID for this product?

The catalog ID for the product is 248-DC.

What is the finish of the coupling?

The coupling has a ball burnished, mirror smooth finish.

What sizes of EMT can the coupling join?

The coupling is used to join EMT sizes from 1/2" through 1 1/4". It is concrete-tight for 1 1/2" through 4" when taped.

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.