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NSI Industries 252-USI - Connector, compression, steel. 105 Degree C insulated throat, size 1"
NSI Industries

252-USI

UPC: 781747222527


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Overview

The NSi Industries 252-USI is a 1-inch steel compression connector engineered for reliable, high-performance connections with flexible and extra-flexible copper cables. This UL486A Listed and cULus Listed (155027) connector meets 90°C temperature and 600V voltage ratings, ensuring compliance with industrial electrical standards. The tin-plated steel construction provides superior corrosion resistance, while the flared openings at both ends simplify cable insertion for locomotive, welding, mining, and other demanding applications. A positive center stop guarantees proper installation depth, preventing over-crimping or under-crimping. Compatible with ASTM Class H, Class M, and welding cable types, the 252-USI supports wire ranges from 1 AWG to 4/0 AWG. The connector’s design reduces pressure on cable strands, minimizing chafing and breakage during operation. Ideal for heavy-duty electrical systems, this connector delivers durable, secure splices in harsh environments where reliability is critical.
  • UL486A Listed and cULus Listed (155027) for compliance with industry standards
  • 90°C temperature rating and 600V voltage rating for industrial applications
  • Tin-plated steel construction for corrosion resistance
  • Flared openings at both ends for easy insertion of flexible copper cables
  • Positive center stop ensures proper installation depth
  • Compatible with ASTM Class H, Class M, and welding cables (1 AWG to 4/0 AWG)

Specifications

Application
Compression type connectors used to join EMT to box or enclosure. Concrete Tight. Made in the USA! Insert UL bug. Insulated Throat -105degree C.
Connection Type
Compression
Connector Type
Compression
Finish
Zinc Electroplated
Insulation
Insulated Throat
Material
Steel
Material Quality
Steel
Series
252-USI
Size
1 IN
Special Features
Concrete tight
Standard
cULus
Temperature Rating, Maximum
221 F
Temperature Rating, Maximum
105 C
Temperature Rating, Minimum
221 F
Temperature Rating, Minimum
105 C
Trade Size
1 in.
Type
Connector
Voltage Rating
600 V
Package Weight (Imperial)
0.194 L
Package Weight (Metric)
0.088 kg
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Frequently Asked Questions

What is the catalog ID for this connector?

The catalog ID for this connector is 252-USI.

Where is the product manufactured?

The product is manufactured in the USA.

How many connectors are in a standard package?

A standard package contains 100 connectors.

What is the trade size of the connector?

The trade size of the connector is 1 inch.

What is the trade size of the connector?

The trade size of the connector is 1 inch.

How many connectors are in a standard package?

A standard package contains 100 connectors.

Where is the product manufactured?

The product is manufactured in the USA.

What is the catalog ID for this connector?

The catalog ID for this connector is 252-USI.

What is the maximum operating temperature?

The maximum operating temperature is 105°C.

Is the connector suitable for concrete applications?

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

Frequently Asked Questions about NSI Industries

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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.

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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.

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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.

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