Authorized NSI Industries Distributor
NSI Industries 251-US - Connector, compression, steel, 3/4"
NSI Industries

251-US

UPC: 781747022516


Documents & Media
Specification SheetVideo ClipWarrantyConflict Minerals Report

Contact for Pricing

Minimum Qty: 25

Multiplier: 25

*Contact for lower quantities*

Overview

The NSI Industries 251-US is a 3/4-inch steel compression connector designed for joining EMT (Electrical Metallic Tubing) to electrical boxes or enclosures. It is rated as Concrete Tight and meets Federal Specification A-A-50553, NEMA Standard FB-1, and UL Standard UL-514B. The 251-US is UL File Number E24001 listed. This connector is ideal for applications requiring a secure and reliable connection between EMT conduit and enclosures, ensuring a watertight seal in concrete pour applications. Its robust steel construction and compression design provide durability and a dependable connection for electrical installations.
  • 3/4" Trade Size Steel Compression Connector
  • Joins EMT to box or enclosure
  • Concrete Tight rating
  • Zinc Electro-Plate finish
  • Manufactured in the US by NSi Industries

Specifications

Application
Compression type connectors used to join EMT to box or enclosure. Concrete Tight. Made in the USA
Connection Type
Compression
Connector Type
Compression
Finish
Zinc Electroplated
Insulation
False
Material
Steel
Material Quality
Steel
Series
251-US
Size
3/4 IN
Special Features
Concrete tight
Standard
cULus
Trade Size
3/4 in.
Type
Connector
Package Weight (Imperial)
0.118 L
Package Weight (Metric)
0.054 kg
Connector, compression, steel. 105 Degree C insulated throat, size 1"

252-USI

Connector, compression, steel. 105 Degree C insulated throat, size 1"
Compression Coupling, Concrete Tight, Conduit Size 2 Inches, Length 2.750 Inches, Material Zinc Plated Steel, For use with EMT Conduit

TK116A

Compression Coupling, Concrete Tight, Conduit Size 2 Inches, Length 2.750 Inches, Material Zinc Plated Steel, For use with EMT Conduit
EMT Connectors, Color-Coded, Steel, Red, Size 1/2"

230-SR

EMT Connectors, Color-Coded, Steel, Red, Size 1/2"
Connector, compression, steel. 105 Degree C insulated throat, size 1-1/2"

254-USI

Connector, compression, steel. 105 Degree C insulated throat, size 1-1/2"
EMT Connectors, Color-Coded, Steel, Red, Size 1-1/2"

234-SR

EMT Connectors, Color-Coded, Steel, Red, Size 1-1/2"
Mighty-Move® Expansion Coupling 1-1/4" Steel expansion coupling for EMT

EC-125

Mighty-Move® Expansion Coupling 1-1/4" Steel expansion coupling for EMT
Connector, compression, steel, 1-1/4"

253-US

Connector, compression, steel, 1-1/4"
Connector, compression, steel, size 3"

257-SRT

Connector, compression, steel, size 3"

Frequently Asked Questions

What is the trade size of the connector?

The trade size of the connector is 3/4 inches.

How many connectors are in a standard package?

A standard package contains 250 connectors.

Where is the connector manufactured?

The connector is manufactured in the USA.

What is the catalog ID for the connector?

The catalog ID for the connector is 251-US.

What is the material of the connector?

The connector is made of steel with a zinc electro-plate finish.

What are the dimensions of the connector?

The dimensions are 1.25 inches (A), 1.12 inches (B), and 0.41 inches (C).

What is the UPC number for the connector?

The UPC number for the connector is 78174702251.

What certifications does the connector have?

The connector meets Federal Specification A-A-50553 and UL Standard UL-514B.

Is the connector suitable for concrete applications?

Yes, the connector is concrete tight and suitable for such applications.

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.