NSI Industries AL750N - 2HoleStandard BarrelAluminum Compression Lug 750 MCM -1/2 Bolt Standard BarrelAluminum Compression Lugs is a type ofaluminum compression connector that is produced from high conductivityaluminum tubing.Center stop assures proper cable installation.They are tin-plated to provide corrosion resistance and are marked with die index and color coded for easy reference. Listed for 35KV maximum when properly installed.
NSI Industries

AL750N

UPC: 662381031105


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Technical BulletinInstallation Instructions

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Overview

The NSI Industries AL750N is a high-conductivity aluminum compression lug designed for reliable electrical terminations. Manufactured from premium aluminum tubing, this standard barrel lug features a center stop to ensure proper cable installation, preventing over-insertion and ensuring a secure connection. Its tin plating provides excellent corrosion resistance, making it suitable for demanding environments. The AL750N is clearly marked with die index information and color-coded for easy identification and proper tool selection, streamlining installation processes. This lug is cULus Listed and UL486A/B Listed as a wire connector, with a temperature rating of 90°C. It is also UL Listed to 35kV maximum when properly installed according to cable manufacturer specifications. The AL750N is designed for use with 750 MCM conductors and features a 1/2" bolt size for secure mounting. Its barrel outer diameter is 0.630 inches, and the inner diameter is 0.390 inches. The overall length is 2.800 inches, with a barrel length of 0.929 inches and a tang length of 0.500 inches. The tang thickness is 0.240 inches, and the mounting hole diameter is 0.409 inches. The lug is pre-filled with oxide inhibitor and capped for immediate use, further enhancing its durability and ease of installation. For optimal performance and expanded wire range, it is recommended to use with NSI N1240 or N121D crimp tools. Consult the NSI catalog for specific tool/die crimping information. This product is manufactured in Germany.
  • Constructed from high conductivity aluminum tubing for superior electrical performance.
  • Tin-plated for enhanced corrosion resistance and low contact resistance.
  • Center stop ensures proper cable insertion and secure termination.
  • Marked with die index and color-coded for easy identification and tool selection.
  • UL Listed to 35kV maximum when properly installed; 90°C temperature rating.

Specifications

Cable Size
750 MCM (STR)
Environmental Conditions
90 C
Finish
Tin Plated Bronze
Number Of Holes
2
Stud Size
1/2 IN
Warranty
1 Year
Package Dimensions (L x W x H)
7.37 IN x 2.189 IN x 1.6 IN
Package Dimensions (L x W x H)
18.7198 cm x 5.5601 cm x 4.064 cm
Package Weight (Imperial)
2.400 L
Package Weight (Metric)
1.089 kg
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How to Install Aluminum Compression Connectors

This guide provides step-by-step instructions for installing aluminum compression connectors, ensuring a secure and reliable electrical connection.

Estimated time: 30m

Tools needed:

Wire strippers, Crimping tool, Wire brush

Supplies needed:

Aluminum compression connectors, Cable

  1. Select the appropriate connector

    Choose the correct lug or splice connector based on the size of the cable being installed, ensuring it matches the specifications in the provided chart.

  2. Strip the cable insulation

    Carefully strip the insulation from the conductor without nicking the strands, leaving enough length to fully insert the stripped conductor into the connector barrel.

  3. 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.

  4. Insert the conductor into the connector

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

  5. Crimp the connector

    Using the appropriate crimping tool, crimp the connector according to the manufacturer's specifications, ensuring the number of crimps is per side for a splice connector.

  6. Verify the connection

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

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