NSI Industries 258-DCI2 - Connector, Compression, Zinc Die Cast, 105 Degree C Insulated Throat, Size 3 1/2 Inch
NSI Industries

258-DCI2

UPC: 781747162588


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Overview

The NSI Industries 258-DCI2 is a zinc die-cast compression connector engineered for industrial electrical conduit termination. This 3 1/2-inch connector features a 105°C insulated throat, providing critical protection against electrical shorts and ensuring safe, reliable connections in demanding environments. Constructed from durable zinc die-cast material, it delivers superior corrosion resistance and longevity, outperforming steel alternatives in harsh industrial settings. The compression connection type ensures a secure, vibration-resistant fit for conduit systems, while the insulated throat design enhances electrical safety and compliance with industry standards. This connector is UL-tested for error-free performance, making it a trusted choice for electrical installations in manufacturing plants, commercial buildings, and utility infrastructure. Compatible with standard 3 1/2-inch conduit systems, the 258-DCI2 is ideal for secure conduit termination in applications requiring robust, long-lasting electrical connections.
  • Zinc die-cast construction for corrosion resistance and durability
  • 3 1/2-inch size for standard conduit compatibility
  • 105°C insulated throat prevents electrical shorts
  • Compression connection type ensures secure, vibration-resistant fit
  • UL-tested for reliable, error-free performance

Specifications

Application
Used to join steel EMT to box or enclosure. Concrete-tight. 2 1/2" thru 4" suitable for use with Steel EMT. Insulator rated 105°C. 2-1/2" through 4" also listed for use with Steel and Aluminum Rigid Conduit.
Connection Type
Compression
Connector Type
Compression
Finish
Ball burnish
Insulation
Insulated Throat
Material
Zinc Die Cast
Material Quality
Zinc Die Cast
Series
258
Size
3-1/2 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
3-1/2 in.
Type
Connector
Package Weight (Imperial)
2.183 L
Package Weight (Metric)
0.990 kg
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Frequently Asked Questions

What is the finish of the connector?

The connector has a ball burnished, mirror smooth finish.

Where is the 258-DCI2 connector manufactured?

The connector is manufactured in the USA.

What certifications does this product have?

It is UL Listed (E24001, UL-514B) and CSA Listed (LR39354). It also meets Federal Specification A-A-50553 and NEMA Standard FB-1.

What is the trade size of this connector?

The trade size of this connector is 3-1/2 inches.

What are the dimensions of the 258-DCI2 connector?

Dimension A is 1 inch, Dimension B is 2-1/4 inches, and Dimension C is 5 inches.

What is the temperature rating of the insulator?

The insulator is rated for 105°C.

What is the material of the connector?

The connector is made from Zinc Die Cast.

What materials is this connector compatible with?

It is suitable for use with Steel EMT. Sizes 2-1/2 inches through 4 inches are also listed for use with Steel and Aluminum Rigid Conduit.

What is the primary use of this connector?

This connector is used to join steel EMT to a box or enclosure. It is also concrete-tight.

What is the primary use of this connector?

This connector is used to join steel EMT to a box or enclosure. It is also concrete-tight.

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