NSI Industries L350NB - 2 Hole Long Barrel Copper Compression Lug for Flexible Copper Cable 350 MCM- 1/2" Bolt Compression lugs for flexible copper cables are connects that have a gentle, continuous flared end to ensure ease of cable insertion of flexible and extra flexible cables such as locomotive, welding, mining cable and more. The flared end also reduces pressure on the cable strands after installation and protects them from chafing and breakage as a result of cable movement. Tin-plated for corrosion resistance. Rated 600 volts for copper cables only. Single mounting hole.
NSI Industries

L350NB

UPC: 662381336644


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Installation Instructions

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Overview

The NSI Industries L350NB is a 2-hole long barrel copper compression lug specifically engineered for flexible copper cables. This lug is designed to accommodate cables rated at 350 MCM. A key feature of the L350NB is its gentle, continuous flared end. This design element is crucial for ensuring ease of cable insertion, particularly for flexible and extra-flexible cables. Such cables are commonly found in demanding applications like locomotive, welding, and mining operations. Beyond facilitating insertion, the flared end also plays a vital role in protecting the cable strands. After installation, this design reduces pressure on the cable strands, thereby minimizing the risk of chafing and breakage that can occur due to cable movement. For enhanced durability and protection against environmental factors, the L350NB is tin-plated. This plating provides corrosion resistance, ensuring a longer service life in various conditions. The lug is rated for 600 volts, making it suitable for a range of electrical applications. It is important to note that the L350NB is rated for copper cables only. The L350NB features a single mounting hole, facilitating secure and straightforward installation. This compression lug is manufactured in the US by NSI Industries, a company recognized for its industrial electrical components.
  • 2-hole long barrel design for 350 MCM flexible copper cables
  • Gentle flared end for easy cable insertion and reduced strand damage
  • Tin-plated for corrosion resistance in harsh environments
  • Rated 600 volts for copper cables only
  • Single mounting hole for secure installation

Specifications

Application
Terminate, Splice, Tap Power Connectors
Cable Size
350 MCM (STR)
Color
Red
Connection Type
Compression Lug
Connection Type
Compression
Environmental Conditions
90 C
Finish
Tin Plated
Material
Copper
Material
Copper (tin-plated)
Material
Copper, Tin-Plated
Mounting
1/2 Mounting Holes
Mounting Type
Single mounting hole
Mounting Type
Single Hole
Number Of Holes
2
Series
L
Series
NSI Industries L350NB
Size
L=5.39 - W=1.28 - OD=.870 - ID=.700
Size
350 MCM
Size
350 MCM, 1/2" Bolt
Special Features
350 MCM (STR) - 1/2 Mounting Holes - 1 3/4 Hole Spacing
Standard
UL486A/B
Stud Size
1/2 IN
Type
Long Barrel - Two Hole - Belled End
Voltage Rating
600 V
Warranty
1 Year
Package Dimensions (L x W x H)
5.39 IN x 1.28 IN x 0.87 IN
Package Dimensions (L x W x H)
13.6906 cm x 3.2512 cm x 22.098 mm
Package Weight (Imperial)
1.560 L
Package Weight (Metric)
0.708 kg
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How to Install Copper Compression Connectors

This guide provides step-by-step instructions for installing copper compression connectors, ensuring secure and reliable electrical connections.

Estimated time: 30m

Tools needed:

Wire strippers, Crimping tool, Wire brush

Supplies needed:

Copper compression connectors, Cable

  1. Strip the conductor

    Carefully strip the insulation from the conductor without nicking the strands, ensuring the stripped length allows for complete insertion into the connector barrel.

  2. Clean the conductor

    Use a wire brush to clean the stripped portion of the conductor, removing any oxide films to ensure a good electrical connection.

  3. Insert the conductor

    Insert the cleaned and stripped conductor completely into the connector barrel, ensuring it fills the barrel fully.

  4. Crimp the connector

    Using the appropriate crimping tool, apply pressure to crimp the connector securely onto the conductor, following the manufacturer's suggested crimp locations.

  5. Verify the connection

    Inspect the crimped connection to ensure it is secure and that there are no visible gaps or loose strands.

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.

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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.

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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.

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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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