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NSI Industries 258-SRT - Connector, compression, steel, size 3 1/2"
NSI Industries

258-SRT

UPC: 781747202581


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Overview

The NSI Industries 258-SRT compression connector is a UL486A and cULus Listed steel connector designed for flexible and extra-flexible copper cables up to 3 1/2 inches. This 600V-rated connector operates reliably at 90°C, making it suitable for demanding industrial and commercial electrical applications. The flared openings at both ends ensure easy cable insertion, while the positive center stop guarantees proper alignment and consistent crimping. Constructed from tin-plated steel, the 258-SRT resists corrosion and maintains long-term conductivity. It supports a wide range of flexible copper cables, including locomotive, welding, mining, and DLO diesel cables. The connector's robust steel build provides durable performance in high-vibration environments, ensuring secure electrical connections. Compatible with NSI N12ID dieless compression tools for expanded wire range applications, this connector meets stringent UL and cULus standards for safety and reliability.
  • UL486A and cULus Listed for safety and compliance
  • Rated for 600V and 90°C operation
  • Tin-plated steel construction resists corrosion
  • Flared openings for easy cable insertion
  • Positive center stop ensures proper alignment

Specifications

Application
Used to join EMT to box or enclosure. Concrete/Raintight
Connection Type
Compression
Connector Type
Compression
Finish
Zinc Electroplated
Insulation
False
Material
Steel
Material Quality
Steel
Size
3 1/2 in
Size
3.5 inches
Special Features
Connectors assembled with knockout gasket, no separate pieces to buy and stock
Standard
cULus
Trade Size
3-1/2 in.
Type
Connector
Voltage Rating
600 V
Package Weight (Imperial)
2.674 L
Package Weight (Metric)
1.213 kg
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Frequently Asked Questions

What is the trade size of the 258-SRT connector?

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

Is the 258-SRT connector raintight?

Yes, the 258-SRT connector is designed to be raintight.

What material is the 258-SRT connector made of?

The 258-SRT connector is made of steel.

What is the primary application of the 258-SRT connector?

The 258-SRT connector is used to join EMT to a box or enclosure.

What is the finish of the 258-SRT connector?

The connector has a zinc electro-plate finish.

What certifications does the 258-SRT connector have?

The connector is certified under Federal Specification A-A-50553 and NEMA Standard FB-1.

What is the standard package quantity for the 258-SRT?

The standard package quantity for the 258-SRT is 6.

What is the UL file number for the 258-SRT connector?

The UL file number for the connector is E24001.

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